[llvm] [NVPTX] Constant-folding for f2i, d2ui, f2ll etc. (PR #118965)

Lewis Crawford via llvm-commits llvm-commits at lists.llvm.org
Fri Dec 6 05:08:43 PST 2024


https://github.com/LewisCrawford created https://github.com/llvm/llvm-project/pull/118965

Add constant-folding support for the NVVM intrinsics for converting float/double to signed/unsigned int32/int64 types, including all rounding-modes and ftz modifiers.

>From c1024e3697ad4c609258632a638145fa253c63fe Mon Sep 17 00:00:00 2001
From: Lewis Crawford <lcrawford at nvidia.com>
Date: Fri, 15 Nov 2024 17:09:38 +0000
Subject: [PATCH] [NVPTX] Constant-folding for f2i, d2ui, f2ll etc.

Add constant-folding support for the NVVM intrinsics for converting
float/double to signed/unsigned int32/int64 types, including all
rounding-modes and ftz modifiers.
---
 llvm/lib/Analysis/ConstantFolding.cpp         |  265 ++++
 .../InstSimplify/const-fold-nvvm-f2i-d2i.ll   | 1129 +++++++++++++++++
 .../InstSimplify/const-fold-nvvm-f2ll-d2ll.ll | 1129 +++++++++++++++++
 3 files changed, 2523 insertions(+)
 create mode 100644 llvm/test/Transforms/InstSimplify/const-fold-nvvm-f2i-d2i.ll
 create mode 100644 llvm/test/Transforms/InstSimplify/const-fold-nvvm-f2ll-d2ll.ll

diff --git a/llvm/lib/Analysis/ConstantFolding.cpp b/llvm/lib/Analysis/ConstantFolding.cpp
index efbccee76f2c51..2806c29462fa31 100644
--- a/llvm/lib/Analysis/ConstantFolding.cpp
+++ b/llvm/lib/Analysis/ConstantFolding.cpp
@@ -45,6 +45,7 @@
 #include "llvm/IR/IntrinsicsAArch64.h"
 #include "llvm/IR/IntrinsicsAMDGPU.h"
 #include "llvm/IR/IntrinsicsARM.h"
+#include "llvm/IR/IntrinsicsNVPTX.h"
 #include "llvm/IR/IntrinsicsWebAssembly.h"
 #include "llvm/IR/IntrinsicsX86.h"
 #include "llvm/IR/Operator.h"
@@ -1678,6 +1679,58 @@ bool llvm::canConstantFoldCallTo(const CallBase *Call, const Function *F) {
   case Intrinsic::x86_avx512_cvttsd2usi64:
     return !Call->isStrictFP();
 
+  // NVVM float/double to int32/uint32 conversion intrinsics
+  case Intrinsic::nvvm_f2i_rm:
+  case Intrinsic::nvvm_f2i_rn:
+  case Intrinsic::nvvm_f2i_rp:
+  case Intrinsic::nvvm_f2i_rz:
+  case Intrinsic::nvvm_f2i_rm_ftz:
+  case Intrinsic::nvvm_f2i_rn_ftz:
+  case Intrinsic::nvvm_f2i_rp_ftz:
+  case Intrinsic::nvvm_f2i_rz_ftz:
+  case Intrinsic::nvvm_f2ui_rm:
+  case Intrinsic::nvvm_f2ui_rn:
+  case Intrinsic::nvvm_f2ui_rp:
+  case Intrinsic::nvvm_f2ui_rz:
+  case Intrinsic::nvvm_f2ui_rm_ftz:
+  case Intrinsic::nvvm_f2ui_rn_ftz:
+  case Intrinsic::nvvm_f2ui_rp_ftz:
+  case Intrinsic::nvvm_f2ui_rz_ftz:
+  case Intrinsic::nvvm_d2i_rm:
+  case Intrinsic::nvvm_d2i_rn:
+  case Intrinsic::nvvm_d2i_rp:
+  case Intrinsic::nvvm_d2i_rz:
+  case Intrinsic::nvvm_d2ui_rm:
+  case Intrinsic::nvvm_d2ui_rn:
+  case Intrinsic::nvvm_d2ui_rp:
+  case Intrinsic::nvvm_d2ui_rz:
+
+  // NVVM float/double to int64/uint64 conversion intrinsics
+  case Intrinsic::nvvm_f2ll_rm:
+  case Intrinsic::nvvm_f2ll_rn:
+  case Intrinsic::nvvm_f2ll_rp:
+  case Intrinsic::nvvm_f2ll_rz:
+  case Intrinsic::nvvm_f2ll_rm_ftz:
+  case Intrinsic::nvvm_f2ll_rn_ftz:
+  case Intrinsic::nvvm_f2ll_rp_ftz:
+  case Intrinsic::nvvm_f2ll_rz_ftz:
+  case Intrinsic::nvvm_f2ull_rm:
+  case Intrinsic::nvvm_f2ull_rn:
+  case Intrinsic::nvvm_f2ull_rp:
+  case Intrinsic::nvvm_f2ull_rz:
+  case Intrinsic::nvvm_f2ull_rm_ftz:
+  case Intrinsic::nvvm_f2ull_rn_ftz:
+  case Intrinsic::nvvm_f2ull_rp_ftz:
+  case Intrinsic::nvvm_f2ull_rz_ftz:
+  case Intrinsic::nvvm_d2ll_rm:
+  case Intrinsic::nvvm_d2ll_rn:
+  case Intrinsic::nvvm_d2ll_rp:
+  case Intrinsic::nvvm_d2ll_rz:
+  case Intrinsic::nvvm_d2ull_rm:
+  case Intrinsic::nvvm_d2ull_rn:
+  case Intrinsic::nvvm_d2ull_rp:
+  case Intrinsic::nvvm_d2ull_rz:
+
   // Sign operations are actually bitwise operations, they do not raise
   // exceptions even for SNANs.
   case Intrinsic::fabs:
@@ -1840,6 +1893,13 @@ inline bool llvm_fenv_testexcept() {
   return false;
 }
 
+static const APFloat FTZPreserveSign(Type *Ty, const APFloat &V) {
+  if (V.isDenormal())
+    return APFloat::getZero(Ty->getFltSemantics(), V.isNegative());
+
+  return V;
+}
+
 Constant *ConstantFoldFP(double (*NativeFP)(double), const APFloat &V,
                          Type *Ty) {
   llvm_fenv_clearexcept();
@@ -2300,6 +2360,211 @@ static Constant *ConstantFoldScalarCall1(StringRef Name,
       return ConstantFP::get(Ty->getContext(), U);
     }
 
+    // NVVM float/double to signed/unsigned int32/int64 conversions:
+    switch (IntrinsicID) {
+    // f2i
+    case Intrinsic::nvvm_f2i_rm:
+    case Intrinsic::nvvm_f2i_rn:
+    case Intrinsic::nvvm_f2i_rp:
+    case Intrinsic::nvvm_f2i_rz:
+    case Intrinsic::nvvm_f2i_rm_ftz:
+    case Intrinsic::nvvm_f2i_rn_ftz:
+    case Intrinsic::nvvm_f2i_rp_ftz:
+    case Intrinsic::nvvm_f2i_rz_ftz:
+    // f2ui
+    case Intrinsic::nvvm_f2ui_rm:
+    case Intrinsic::nvvm_f2ui_rn:
+    case Intrinsic::nvvm_f2ui_rp:
+    case Intrinsic::nvvm_f2ui_rz:
+    case Intrinsic::nvvm_f2ui_rm_ftz:
+    case Intrinsic::nvvm_f2ui_rn_ftz:
+    case Intrinsic::nvvm_f2ui_rp_ftz:
+    case Intrinsic::nvvm_f2ui_rz_ftz:
+    // d2i
+    case Intrinsic::nvvm_d2i_rm:
+    case Intrinsic::nvvm_d2i_rn:
+    case Intrinsic::nvvm_d2i_rp:
+    case Intrinsic::nvvm_d2i_rz:
+    // d2ui
+    case Intrinsic::nvvm_d2ui_rm:
+    case Intrinsic::nvvm_d2ui_rn:
+    case Intrinsic::nvvm_d2ui_rp:
+    case Intrinsic::nvvm_d2ui_rz:
+    // f2ll
+    case Intrinsic::nvvm_f2ll_rm:
+    case Intrinsic::nvvm_f2ll_rn:
+    case Intrinsic::nvvm_f2ll_rp:
+    case Intrinsic::nvvm_f2ll_rz:
+    case Intrinsic::nvvm_f2ll_rm_ftz:
+    case Intrinsic::nvvm_f2ll_rn_ftz:
+    case Intrinsic::nvvm_f2ll_rp_ftz:
+    case Intrinsic::nvvm_f2ll_rz_ftz:
+    // f2ull
+    case Intrinsic::nvvm_f2ull_rm:
+    case Intrinsic::nvvm_f2ull_rn:
+    case Intrinsic::nvvm_f2ull_rp:
+    case Intrinsic::nvvm_f2ull_rz:
+    case Intrinsic::nvvm_f2ull_rm_ftz:
+    case Intrinsic::nvvm_f2ull_rn_ftz:
+    case Intrinsic::nvvm_f2ull_rp_ftz:
+    case Intrinsic::nvvm_f2ull_rz_ftz:
+    // d2ll
+    case Intrinsic::nvvm_d2ll_rm:
+    case Intrinsic::nvvm_d2ll_rn:
+    case Intrinsic::nvvm_d2ll_rp:
+    case Intrinsic::nvvm_d2ll_rz:
+    // d2ull
+    case Intrinsic::nvvm_d2ull_rm:
+    case Intrinsic::nvvm_d2ull_rn:
+    case Intrinsic::nvvm_d2ull_rp:
+    case Intrinsic::nvvm_d2ull_rz: {
+      // In float-to-integer conversion, NaN inputs are converted to 0.
+      if (U.isNaN())
+        return ConstantInt::get(Ty, 0);
+
+      APFloat::roundingMode RMode = APFloat::roundingMode::Invalid;
+      switch (IntrinsicID) {
+      // i_rm
+      case Intrinsic::nvvm_f2i_rm:
+      case Intrinsic::nvvm_f2ui_rm:
+      case Intrinsic::nvvm_f2i_rm_ftz:
+      case Intrinsic::nvvm_f2ui_rm_ftz:
+      case Intrinsic::nvvm_d2i_rm:
+      case Intrinsic::nvvm_d2ui_rm:
+      // ll_rm
+      case Intrinsic::nvvm_f2ll_rm:
+      case Intrinsic::nvvm_f2ull_rm:
+      case Intrinsic::nvvm_f2ll_rm_ftz:
+      case Intrinsic::nvvm_f2ull_rm_ftz:
+      case Intrinsic::nvvm_d2ll_rm:
+      case Intrinsic::nvvm_d2ull_rm:
+        RMode = APFloat::rmTowardNegative;
+        break;
+
+      // i_rn
+      case Intrinsic::nvvm_f2i_rn:
+      case Intrinsic::nvvm_f2ui_rn:
+      case Intrinsic::nvvm_f2i_rn_ftz:
+      case Intrinsic::nvvm_f2ui_rn_ftz:
+      case Intrinsic::nvvm_d2i_rn:
+      case Intrinsic::nvvm_d2ui_rn:
+      // ll_rn
+      case Intrinsic::nvvm_f2ll_rn:
+      case Intrinsic::nvvm_f2ull_rn:
+      case Intrinsic::nvvm_f2ll_rn_ftz:
+      case Intrinsic::nvvm_f2ull_rn_ftz:
+      case Intrinsic::nvvm_d2ll_rn:
+      case Intrinsic::nvvm_d2ull_rn:
+        RMode = APFloat::rmNearestTiesToEven;
+        break;
+
+      // i_rp
+      case Intrinsic::nvvm_f2i_rp:
+      case Intrinsic::nvvm_f2ui_rp:
+      case Intrinsic::nvvm_f2i_rp_ftz:
+      case Intrinsic::nvvm_f2ui_rp_ftz:
+      case Intrinsic::nvvm_d2i_rp:
+      case Intrinsic::nvvm_d2ui_rp:
+      // ll_rp
+      case Intrinsic::nvvm_f2ll_rp:
+      case Intrinsic::nvvm_f2ull_rp:
+      case Intrinsic::nvvm_f2ll_rp_ftz:
+      case Intrinsic::nvvm_f2ull_rp_ftz:
+      case Intrinsic::nvvm_d2ll_rp:
+      case Intrinsic::nvvm_d2ull_rp:
+        RMode = APFloat::rmTowardPositive;
+        break;
+
+      // i_rz
+      case Intrinsic::nvvm_f2i_rz:
+      case Intrinsic::nvvm_f2ui_rz:
+      case Intrinsic::nvvm_f2i_rz_ftz:
+      case Intrinsic::nvvm_f2ui_rz_ftz:
+      case Intrinsic::nvvm_d2i_rz:
+      case Intrinsic::nvvm_d2ui_rz:
+      // ll_rz
+      case Intrinsic::nvvm_f2ll_rz:
+      case Intrinsic::nvvm_f2ull_rz:
+      case Intrinsic::nvvm_f2ll_rz_ftz:
+      case Intrinsic::nvvm_f2ull_rz_ftz:
+      case Intrinsic::nvvm_d2ll_rz:
+      case Intrinsic::nvvm_d2ull_rz:
+        RMode = APFloat::rmTowardZero;
+        break;
+      default:
+        llvm_unreachable("Invalid f2i/d2i rounding mode intrinsic");
+      }
+      assert(RM != APFloat::roundingMode::Invalid);
+
+      bool IsFTZ = false;
+      switch (IntrinsicID) {
+      case Intrinsic::nvvm_f2i_rm_ftz:
+      case Intrinsic::nvvm_f2i_rn_ftz:
+      case Intrinsic::nvvm_f2i_rp_ftz:
+      case Intrinsic::nvvm_f2i_rz_ftz:
+      case Intrinsic::nvvm_f2ui_rm_ftz:
+      case Intrinsic::nvvm_f2ui_rn_ftz:
+      case Intrinsic::nvvm_f2ui_rp_ftz:
+      case Intrinsic::nvvm_f2ui_rz_ftz:
+      case Intrinsic::nvvm_f2ll_rm_ftz:
+      case Intrinsic::nvvm_f2ll_rn_ftz:
+      case Intrinsic::nvvm_f2ll_rp_ftz:
+      case Intrinsic::nvvm_f2ll_rz_ftz:
+      case Intrinsic::nvvm_f2ull_rm_ftz:
+      case Intrinsic::nvvm_f2ull_rn_ftz:
+      case Intrinsic::nvvm_f2ull_rp_ftz:
+      case Intrinsic::nvvm_f2ull_rz_ftz:
+        IsFTZ = true;
+        break;
+      }
+
+      bool IsSigned = false;
+      switch (IntrinsicID) {
+      // f2i
+      case Intrinsic::nvvm_f2i_rm:
+      case Intrinsic::nvvm_f2i_rm_ftz:
+      case Intrinsic::nvvm_f2i_rn:
+      case Intrinsic::nvvm_f2i_rn_ftz:
+      case Intrinsic::nvvm_f2i_rp:
+      case Intrinsic::nvvm_f2i_rp_ftz:
+      case Intrinsic::nvvm_f2i_rz:
+      case Intrinsic::nvvm_f2i_rz_ftz:
+      // d2i
+      case Intrinsic::nvvm_d2i_rm:
+      case Intrinsic::nvvm_d2i_rn:
+      case Intrinsic::nvvm_d2i_rp:
+      case Intrinsic::nvvm_d2i_rz:
+      // f2ll
+      case Intrinsic::nvvm_f2ll_rm:
+      case Intrinsic::nvvm_f2ll_rm_ftz:
+      case Intrinsic::nvvm_f2ll_rn:
+      case Intrinsic::nvvm_f2ll_rn_ftz:
+      case Intrinsic::nvvm_f2ll_rp:
+      case Intrinsic::nvvm_f2ll_rp_ftz:
+      case Intrinsic::nvvm_f2ll_rz:
+      case Intrinsic::nvvm_f2ll_rz_ftz:
+      // d2ll
+      case Intrinsic::nvvm_d2ll_rm:
+      case Intrinsic::nvvm_d2ll_rn:
+      case Intrinsic::nvvm_d2ll_rp:
+      case Intrinsic::nvvm_d2ll_rz:
+        IsSigned = true;
+        break;
+      }
+
+      APSInt ResInt(Ty->getIntegerBitWidth(), !IsSigned);
+      auto FloatToRound = IsFTZ ? FTZPreserveSign(Op->getType(), U) : U;
+
+      bool IsExact = false;
+      APFloat::opStatus Status =
+          FloatToRound.convertToInteger(ResInt, RMode, &IsExact);
+
+      if (Status != APFloat::opInvalidOp)
+        return ConstantInt::get(Ty, ResInt);
+      return nullptr;
+    }
+    }
+
     /// We only fold functions with finite arguments. Folding NaN and inf is
     /// likely to be aborted with an exception anyway, and some host libms
     /// have known errors raising exceptions.
diff --git a/llvm/test/Transforms/InstSimplify/const-fold-nvvm-f2i-d2i.ll b/llvm/test/Transforms/InstSimplify/const-fold-nvvm-f2i-d2i.ll
new file mode 100644
index 00000000000000..543c73137c1b64
--- /dev/null
+++ b/llvm/test/Transforms/InstSimplify/const-fold-nvvm-f2i-d2i.ll
@@ -0,0 +1,1129 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
+; RUN: opt < %s -passes=instsimplify -march=nvptx64 -S | FileCheck %s
+
+; f2i/f2ui and d2i/d2ui - double/float to i32 tests
+
+;###############################################################
+;#               Tests with Positive 1.5                       #
+;###############################################################
+
+;+-------------------------------------------------------------+
+;|                        f2i                                  |
+;+-------------------------------------------------------------+
+define i32 @test_pos_1_5_f2i_rm() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2i_rm() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.f2i.rm(float 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_f2i_rn() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2i_rn() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.f2i.rn(float 1.5)
+  ret i32 %res
+}
+
+
+define i32 @test_pos_1_5_f2i_rp() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2i_rp() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.f2i.rp(float 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_f2i_rz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2i_rz() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.f2i.rz(float 1.5)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2i_ftz                                |
+;+-------------------------------------------------------------+
+define i32 @test_pos_1_5_f2i_rm_ftz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2i_rm_ftz() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.f2i.rm.ftz(float 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_f2i_rn_ftz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2i_rn_ftz() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.f2i.rn.ftz(float 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_f2i_rp_ftz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2i_rp_ftz() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.f2i.rp.ftz(float 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_f2i_rz_ftz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2i_rz_ftz() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.f2i.rz.ftz(float 1.5)
+  ret i32 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2i                                  |
+;+-------------------------------------------------------------+
+define i32 @test_pos_1_5_d2i_rm() {
+; CHECK-LABEL: define i32 @test_pos_1_5_d2i_rm() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.d2i.rm(double 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_d2i_rn() {
+; CHECK-LABEL: define i32 @test_pos_1_5_d2i_rn() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.d2i.rn(double 1.5)
+  ret i32 %res
+}
+
+
+define i32 @test_pos_1_5_d2i_rp() {
+; CHECK-LABEL: define i32 @test_pos_1_5_d2i_rp() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.d2i.rp(double 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_d2i_rz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_d2i_rz() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.d2i.rz(double 1.5)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                        f2ui                                  |
+;+-------------------------------------------------------------+
+define i32 @test_pos_1_5_f2ui_rm() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2ui_rm() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.f2ui.rm(float 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_f2ui_rn() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2ui_rn() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.f2ui.rn(float 1.5)
+  ret i32 %res
+}
+
+
+define i32 @test_pos_1_5_f2ui_rp() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2ui_rp() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.f2ui.rp(float 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_f2ui_rz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2ui_rz() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.f2ui.rz(float 1.5)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ui_ftz                                |
+;+-------------------------------------------------------------+
+define i32 @test_pos_1_5_f2ui_rm_ftz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2ui_rm_ftz() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.f2ui.rm.ftz(float 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_f2ui_rn_ftz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2ui_rn_ftz() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.f2ui.rn.ftz(float 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_f2ui_rp_ftz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2ui_rp_ftz() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.f2ui.rp.ftz(float 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_f2ui_rz_ftz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_f2ui_rz_ftz() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.f2ui.rz.ftz(float 1.5)
+  ret i32 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ui                                  |
+;+-------------------------------------------------------------+
+define i32 @test_pos_1_5_d2ui_rm() {
+; CHECK-LABEL: define i32 @test_pos_1_5_d2ui_rm() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.d2ui.rm(double 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_d2ui_rn() {
+; CHECK-LABEL: define i32 @test_pos_1_5_d2ui_rn() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.d2ui.rn(double 1.5)
+  ret i32 %res
+}
+
+
+define i32 @test_pos_1_5_d2ui_rp() {
+; CHECK-LABEL: define i32 @test_pos_1_5_d2ui_rp() {
+; CHECK-NEXT:    ret i32 2
+;
+  %res = call i32 @llvm.nvvm.d2ui.rp(double 1.5)
+  ret i32 %res
+}
+
+define i32 @test_pos_1_5_d2ui_rz() {
+; CHECK-LABEL: define i32 @test_pos_1_5_d2ui_rz() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.d2ui.rz(double 1.5)
+  ret i32 %res
+}
+
+;###############################################################
+;#               Tests with Negative 1.5                       #
+;###############################################################
+
+;+-------------------------------------------------------------+
+;|                        f2i                                  |
+;+-------------------------------------------------------------+
+define i32 @test_neg_1_5_f2i_rm() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2i_rm() {
+; CHECK-NEXT:    ret i32 -2
+;
+  %res = call i32 @llvm.nvvm.f2i.rm(float -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_f2i_rn() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2i_rn() {
+; CHECK-NEXT:    ret i32 -2
+;
+  %res = call i32 @llvm.nvvm.f2i.rn(float -1.5)
+  ret i32 %res
+}
+
+
+define i32 @test_neg_1_5_f2i_rp() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2i_rp() {
+; CHECK-NEXT:    ret i32 -1
+;
+  %res = call i32 @llvm.nvvm.f2i.rp(float -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_f2i_rz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2i_rz() {
+; CHECK-NEXT:    ret i32 -1
+;
+  %res = call i32 @llvm.nvvm.f2i.rz(float -1.5)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2i_ftz                                |
+;+-------------------------------------------------------------+
+define i32 @test_neg_1_5_f2i_rm_ftz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2i_rm_ftz() {
+; CHECK-NEXT:    ret i32 -2
+;
+  %res = call i32 @llvm.nvvm.f2i.rm.ftz(float -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_f2i_rn_ftz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2i_rn_ftz() {
+; CHECK-NEXT:    ret i32 -2
+;
+  %res = call i32 @llvm.nvvm.f2i.rn.ftz(float -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_f2i_rp_ftz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2i_rp_ftz() {
+; CHECK-NEXT:    ret i32 -1
+;
+  %res = call i32 @llvm.nvvm.f2i.rp.ftz(float -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_f2i_rz_ftz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2i_rz_ftz() {
+; CHECK-NEXT:    ret i32 -1
+;
+  %res = call i32 @llvm.nvvm.f2i.rz.ftz(float -1.5)
+  ret i32 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2i                                  |
+;+-------------------------------------------------------------+
+define i32 @test_neg_1_5_d2i_rm() {
+; CHECK-LABEL: define i32 @test_neg_1_5_d2i_rm() {
+; CHECK-NEXT:    ret i32 -2
+;
+  %res = call i32 @llvm.nvvm.d2i.rm(double -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_d2i_rn() {
+; CHECK-LABEL: define i32 @test_neg_1_5_d2i_rn() {
+; CHECK-NEXT:    ret i32 -2
+;
+  %res = call i32 @llvm.nvvm.d2i.rn(double -1.5)
+  ret i32 %res
+}
+
+
+define i32 @test_neg_1_5_d2i_rp() {
+; CHECK-LABEL: define i32 @test_neg_1_5_d2i_rp() {
+; CHECK-NEXT:    ret i32 -1
+;
+  %res = call i32 @llvm.nvvm.d2i.rp(double -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_d2i_rz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_d2i_rz() {
+; CHECK-NEXT:    ret i32 -1
+;
+  %res = call i32 @llvm.nvvm.d2i.rz(double -1.5)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                        f2ui                                  |
+;+-------------------------------------------------------------+
+define i32 @test_neg_1_5_f2ui_rm() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2ui_rm() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.f2ui.rm(float -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.f2ui.rm(float -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_f2ui_rn() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2ui_rn() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.f2ui.rn(float -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.f2ui.rn(float -1.5)
+  ret i32 %res
+}
+
+
+define i32 @test_neg_1_5_f2ui_rp() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2ui_rp() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.f2ui.rp(float -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.f2ui.rp(float -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_f2ui_rz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2ui_rz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.f2ui.rz(float -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.f2ui.rz(float -1.5)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ui_ftz                                |
+;+-------------------------------------------------------------+
+define i32 @test_neg_1_5_f2ui_rm_ftz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2ui_rm_ftz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.f2ui.rm.ftz(float -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.f2ui.rm.ftz(float -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_f2ui_rn_ftz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2ui_rn_ftz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.f2ui.rn.ftz(float -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.f2ui.rn.ftz(float -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_f2ui_rp_ftz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2ui_rp_ftz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.f2ui.rp.ftz(float -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.f2ui.rp.ftz(float -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_f2ui_rz_ftz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_f2ui_rz_ftz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.f2ui.rz.ftz(float -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.f2ui.rz.ftz(float -1.5)
+  ret i32 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ui                                  |
+;+-------------------------------------------------------------+
+define i32 @test_neg_1_5_d2ui_rm() {
+; CHECK-LABEL: define i32 @test_neg_1_5_d2ui_rm() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.d2ui.rm(double -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.d2ui.rm(double -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_d2ui_rn() {
+; CHECK-LABEL: define i32 @test_neg_1_5_d2ui_rn() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.d2ui.rn(double -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.d2ui.rn(double -1.5)
+  ret i32 %res
+}
+
+
+define i32 @test_neg_1_5_d2ui_rp() {
+; CHECK-LABEL: define i32 @test_neg_1_5_d2ui_rp() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.d2ui.rp(double -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.d2ui.rp(double -1.5)
+  ret i32 %res
+}
+
+define i32 @test_neg_1_5_d2ui_rz() {
+; CHECK-LABEL: define i32 @test_neg_1_5_d2ui_rz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.d2ui.rz(double -1.500000e+00)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.d2ui.rz(double -1.5)
+  ret i32 %res
+}
+
+;###############################################################
+;#                    Tests with NaN                           #
+;###############################################################
+
+;+-------------------------------------------------------------+
+;|                        f2i                                  |
+;+-------------------------------------------------------------+
+define i32 @test_nan_f2i_rm() {
+; CHECK-LABEL: define i32 @test_nan_f2i_rm() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rm(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_f2i_rn() {
+; CHECK-LABEL: define i32 @test_nan_f2i_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rn(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+
+define i32 @test_nan_f2i_rp() {
+; CHECK-LABEL: define i32 @test_nan_f2i_rp() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rp(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_f2i_rz() {
+; CHECK-LABEL: define i32 @test_nan_f2i_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rz(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2i_ftz                                |
+;+-------------------------------------------------------------+
+define i32 @test_nan_f2i_rm_ftz() {
+; CHECK-LABEL: define i32 @test_nan_f2i_rm_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rm.ftz(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_f2i_rn_ftz() {
+; CHECK-LABEL: define i32 @test_nan_f2i_rn_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rn.ftz(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_f2i_rp_ftz() {
+; CHECK-LABEL: define i32 @test_nan_f2i_rp_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rp.ftz(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_f2i_rz_ftz() {
+; CHECK-LABEL: define i32 @test_nan_f2i_rz_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rz.ftz(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2i                                  |
+;+-------------------------------------------------------------+
+define i32 @test_nan_d2i_rm() {
+; CHECK-LABEL: define i32 @test_nan_d2i_rm() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2i.rm(double 0xFFF8000000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_d2i_rn() {
+; CHECK-LABEL: define i32 @test_nan_d2i_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2i.rn(double 0xFFF8000000000000)
+  ret i32 %res
+}
+
+
+define i32 @test_nan_d2i_rp() {
+; CHECK-LABEL: define i32 @test_nan_d2i_rp() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2i.rp(double 0xFFF8000000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_d2i_rz() {
+; CHECK-LABEL: define i32 @test_nan_d2i_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2i.rz(double 0xFFF8000000000000)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                        f2ui                                  |
+;+-------------------------------------------------------------+
+define i32 @test_nan_f2ui_rm() {
+; CHECK-LABEL: define i32 @test_nan_f2ui_rm() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rm(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_f2ui_rn() {
+; CHECK-LABEL: define i32 @test_nan_f2ui_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rn(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+
+define i32 @test_nan_f2ui_rp() {
+; CHECK-LABEL: define i32 @test_nan_f2ui_rp() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rp(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_f2ui_rz() {
+; CHECK-LABEL: define i32 @test_nan_f2ui_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rz(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ui_ftz                                |
+;+-------------------------------------------------------------+
+define i32 @test_nan_f2ui_rm_ftz() {
+; CHECK-LABEL: define i32 @test_nan_f2ui_rm_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rm.ftz(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_f2ui_rn_ftz() {
+; CHECK-LABEL: define i32 @test_nan_f2ui_rn_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rn.ftz(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_f2ui_rp_ftz() {
+; CHECK-LABEL: define i32 @test_nan_f2ui_rp_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rp.ftz(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_f2ui_rz_ftz() {
+; CHECK-LABEL: define i32 @test_nan_f2ui_rz_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rz.ftz(float 0x7FFFFF0000000000)
+  ret i32 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ui                                  |
+;+-------------------------------------------------------------+
+define i32 @test_nan_d2ui_rm() {
+; CHECK-LABEL: define i32 @test_nan_d2ui_rm() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2ui.rm(double 0xFFF8000000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_d2ui_rn() {
+; CHECK-LABEL: define i32 @test_nan_d2ui_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2ui.rn(double 0xFFF8000000000000)
+  ret i32 %res
+}
+
+
+define i32 @test_nan_d2ui_rp() {
+; CHECK-LABEL: define i32 @test_nan_d2ui_rp() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2ui.rp(double 0xFFF8000000000000)
+  ret i32 %res
+}
+
+define i32 @test_nan_d2ui_rz() {
+; CHECK-LABEL: define i32 @test_nan_d2ui_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2ui.rz(double 0xFFF8000000000000)
+  ret i32 %res
+}
+
+;###############################################################
+;#            Tests with Positive Subnormal                    #
+;###############################################################
+
+;+-------------------------------------------------------------+
+;|                        f2i                                  |
+;+-------------------------------------------------------------+
+define i32 @test_pos_subnormal_f2i_rm() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2i_rm() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rm(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_f2i_rn() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2i_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rn(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+
+define i32 @test_pos_subnormal_f2i_rp() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2i_rp() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.f2i.rp(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_f2i_rz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2i_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rz(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2i_ftz                                |
+;+-------------------------------------------------------------+
+define i32 @test_pos_subnormal_f2i_rm_ftz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2i_rm_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rm.ftz(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_f2i_rn_ftz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2i_rn_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rn.ftz(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_f2i_rp_ftz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2i_rp_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rp.ftz(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_f2i_rz_ftz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2i_rz_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rz.ftz(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2i                                  |
+;+-------------------------------------------------------------+
+define i32 @test_pos_subnormal_d2i_rm() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_d2i_rm() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2i.rm(double 0x000fffffffffffff)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_d2i_rn() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_d2i_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2i.rn(double 0x000fffffffffffff)
+  ret i32 %res
+}
+
+
+define i32 @test_pos_subnormal_d2i_rp() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_d2i_rp() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.d2i.rp(double 0x000fffffffffffff)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_d2i_rz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_d2i_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2i.rz(double 0x000fffffffffffff)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                        f2ui                                  |
+;+-------------------------------------------------------------+
+define i32 @test_pos_subnormal_f2ui_rm() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2ui_rm() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rm(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_f2ui_rn() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2ui_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rn(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+
+define i32 @test_pos_subnormal_f2ui_rp() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2ui_rp() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.f2ui.rp(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_f2ui_rz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2ui_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rz(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ui_ftz                                |
+;+-------------------------------------------------------------+
+define i32 @test_pos_subnormal_f2ui_rm_ftz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2ui_rm_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rm.ftz(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_f2ui_rn_ftz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2ui_rn_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rn.ftz(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_f2ui_rp_ftz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2ui_rp_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rp.ftz(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_f2ui_rz_ftz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_f2ui_rz_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rz.ftz(float 0x380FFFFFC0000000)
+  ret i32 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ui                                  |
+;+-------------------------------------------------------------+
+define i32 @test_pos_subnormal_d2ui_rm() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_d2ui_rm() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2ui.rm(double 0x000fffffffffffff)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_d2ui_rn() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_d2ui_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2ui.rn(double 0x000fffffffffffff)
+  ret i32 %res
+}
+
+
+define i32 @test_pos_subnormal_d2ui_rp() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_d2ui_rp() {
+; CHECK-NEXT:    ret i32 1
+;
+  %res = call i32 @llvm.nvvm.d2ui.rp(double 0x000fffffffffffff)
+  ret i32 %res
+}
+
+define i32 @test_pos_subnormal_d2ui_rz() {
+; CHECK-LABEL: define i32 @test_pos_subnormal_d2ui_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2ui.rz(double 0x000fffffffffffff)
+  ret i32 %res
+}
+
+;###############################################################
+;#            Tests with Negative Subnormal                    #
+;###############################################################
+
+;+-------------------------------------------------------------+
+;|                        f2i                                  |
+;+-------------------------------------------------------------+
+define i32 @test_neg_subnormal_f2i_rm() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2i_rm() {
+; CHECK-NEXT:    ret i32 -1
+;
+  %res = call i32 @llvm.nvvm.f2i.rm(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_f2i_rn() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2i_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rn(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+
+define i32 @test_neg_subnormal_f2i_rp() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2i_rp() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rp(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_f2i_rz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2i_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rz(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2i_ftz                                |
+;+-------------------------------------------------------------+
+define i32 @test_neg_subnormal_f2i_rm_ftz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2i_rm_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rm.ftz(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_f2i_rn_ftz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2i_rn_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rn.ftz(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_f2i_rp_ftz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2i_rp_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rp.ftz(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_f2i_rz_ftz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2i_rz_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2i.rz.ftz(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2i                                  |
+;+-------------------------------------------------------------+
+define i32 @test_neg_subnormal_d2i_rm() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_d2i_rm() {
+; CHECK-NEXT:    ret i32 -1
+;
+  %res = call i32 @llvm.nvvm.d2i.rm(double 0x800fffffffffffff)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_d2i_rn() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_d2i_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2i.rn(double 0x800fffffffffffff)
+  ret i32 %res
+}
+
+
+define i32 @test_neg_subnormal_d2i_rp() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_d2i_rp() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2i.rp(double 0x800fffffffffffff)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_d2i_rz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_d2i_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2i.rz(double 0x800fffffffffffff)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                        f2ui                                  |
+;+-------------------------------------------------------------+
+define i32 @test_neg_subnormal_f2ui_rm() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2ui_rm() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.f2ui.rm(float 0xB80FFFFFC0000000)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.f2ui.rm(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_f2ui_rn() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2ui_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rn(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+
+define i32 @test_neg_subnormal_f2ui_rp() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2ui_rp() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rp(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_f2ui_rz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2ui_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rz(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ui_ftz                                |
+;+-------------------------------------------------------------+
+define i32 @test_neg_subnormal_f2ui_rm_ftz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2ui_rm_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rm.ftz(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_f2ui_rn_ftz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2ui_rn_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rn.ftz(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_f2ui_rp_ftz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2ui_rp_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rp.ftz(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_f2ui_rz_ftz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_f2ui_rz_ftz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.f2ui.rz.ftz(float 0xB80FFFFFC0000000)
+  ret i32 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ui                                  |
+;+-------------------------------------------------------------+
+define i32 @test_neg_subnormal_d2ui_rm() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_d2ui_rm() {
+; CHECK-NEXT:    [[RES:%.*]] = call i32 @llvm.nvvm.d2ui.rm(double 0x800FFFFFFFFFFFFF)
+; CHECK-NEXT:    ret i32 [[RES]]
+;
+  %res = call i32 @llvm.nvvm.d2ui.rm(double 0x800fffffffffffff)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_d2ui_rn() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_d2ui_rn() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2ui.rn(double 0x800fffffffffffff)
+  ret i32 %res
+}
+
+
+define i32 @test_neg_subnormal_d2ui_rp() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_d2ui_rp() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2ui.rp(double 0x800fffffffffffff)
+  ret i32 %res
+}
+
+define i32 @test_neg_subnormal_d2ui_rz() {
+; CHECK-LABEL: define i32 @test_neg_subnormal_d2ui_rz() {
+; CHECK-NEXT:    ret i32 0
+;
+  %res = call i32 @llvm.nvvm.d2ui.rz(double 0x800fffffffffffff)
+  ret i32 %res
+}
+
+declare i32 @llvm.nvvm.f2i.rm(float)
+declare i32 @llvm.nvvm.f2i.rn(float)
+declare i32 @llvm.nvvm.f2i.rp(float)
+declare i32 @llvm.nvvm.f2i.rz(float)
+
+declare i32 @llvm.nvvm.f2i.rm.ftz(float)
+declare i32 @llvm.nvvm.f2i.rn.ftz(float)
+declare i32 @llvm.nvvm.f2i.rp.ftz(float)
+declare i32 @llvm.nvvm.f2i.rz.ftz(float)
+
+declare i32 @llvm.nvvm.d2i.rm(double)
+declare i32 @llvm.nvvm.d2i.rn(double)
+declare i32 @llvm.nvvm.d2i.rp(double)
+declare i32 @llvm.nvvm.d2i.rz(double)
+
+
+declare i32 @llvm.nvvm.f2ui.rm(float)
+declare i32 @llvm.nvvm.f2ui.rn(float)
+declare i32 @llvm.nvvm.f2ui.rp(float)
+declare i32 @llvm.nvvm.f2ui.rz(float)
+
+declare i32 @llvm.nvvm.f2ui.rm.ftz(float)
+declare i32 @llvm.nvvm.f2ui.rn.ftz(float)
+declare i32 @llvm.nvvm.f2ui.rp.ftz(float)
+declare i32 @llvm.nvvm.f2ui.rz.ftz(float)
+
+declare i32 @llvm.nvvm.d2ui.rm(double)
+declare i32 @llvm.nvvm.d2ui.rn(double)
+declare i32 @llvm.nvvm.d2ui.rp(double)
+declare i32 @llvm.nvvm.d2ui.rz(double)
diff --git a/llvm/test/Transforms/InstSimplify/const-fold-nvvm-f2ll-d2ll.ll b/llvm/test/Transforms/InstSimplify/const-fold-nvvm-f2ll-d2ll.ll
new file mode 100644
index 00000000000000..be38177dce2c38
--- /dev/null
+++ b/llvm/test/Transforms/InstSimplify/const-fold-nvvm-f2ll-d2ll.ll
@@ -0,0 +1,1129 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
+; RUN: opt < %s -passes=instsimplify -march=nvptx64 -S | FileCheck %s
+
+; f2ll/f2ull and d2ll/d2ull - double/float to i64 tests
+
+;###############################################################
+;#               Tests with Positive 1.5                       #
+;###############################################################
+
+;+-------------------------------------------------------------+
+;|                        f2ll                                  |
+;+-------------------------------------------------------------+
+define i64 @test_pos_1_5_f2ll_rm() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ll_rm() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.f2ll.rm(float 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_f2ll_rn() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ll_rn() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.f2ll.rn(float 1.5)
+  ret i64 %res
+}
+
+
+define i64 @test_pos_1_5_f2ll_rp() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ll_rp() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.f2ll.rp(float 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_f2ll_rz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ll_rz() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.f2ll.rz(float 1.5)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ll_ftz                                |
+;+-------------------------------------------------------------+
+define i64 @test_pos_1_5_f2ll_rm_ftz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ll_rm_ftz() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.f2ll.rm.ftz(float 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_f2ll_rn_ftz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ll_rn_ftz() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.f2ll.rn.ftz(float 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_f2ll_rp_ftz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ll_rp_ftz() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.f2ll.rp.ftz(float 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_f2ll_rz_ftz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ll_rz_ftz() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.f2ll.rz.ftz(float 1.5)
+  ret i64 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ll                                  |
+;+-------------------------------------------------------------+
+define i64 @test_pos_1_5_d2ll_rm() {
+; CHECK-LABEL: define i64 @test_pos_1_5_d2ll_rm() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.d2ll.rm(double 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_d2ll_rn() {
+; CHECK-LABEL: define i64 @test_pos_1_5_d2ll_rn() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.d2ll.rn(double 1.5)
+  ret i64 %res
+}
+
+
+define i64 @test_pos_1_5_d2ll_rp() {
+; CHECK-LABEL: define i64 @test_pos_1_5_d2ll_rp() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.d2ll.rp(double 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_d2ll_rz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_d2ll_rz() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.d2ll.rz(double 1.5)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                        f2ull                                  |
+;+-------------------------------------------------------------+
+define i64 @test_pos_1_5_f2ull_rm() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ull_rm() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.f2ull.rm(float 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_f2ull_rn() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ull_rn() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.f2ull.rn(float 1.5)
+  ret i64 %res
+}
+
+
+define i64 @test_pos_1_5_f2ull_rp() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ull_rp() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.f2ull.rp(float 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_f2ull_rz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ull_rz() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.f2ull.rz(float 1.5)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ull_ftz                                |
+;+-------------------------------------------------------------+
+define i64 @test_pos_1_5_f2ull_rm_ftz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ull_rm_ftz() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.f2ull.rm.ftz(float 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_f2ull_rn_ftz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ull_rn_ftz() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.f2ull.rn.ftz(float 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_f2ull_rp_ftz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ull_rp_ftz() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.f2ull.rp.ftz(float 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_f2ull_rz_ftz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_f2ull_rz_ftz() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.f2ull.rz.ftz(float 1.5)
+  ret i64 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ull                                  |
+;+-------------------------------------------------------------+
+define i64 @test_pos_1_5_d2ull_rm() {
+; CHECK-LABEL: define i64 @test_pos_1_5_d2ull_rm() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.d2ull.rm(double 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_d2ull_rn() {
+; CHECK-LABEL: define i64 @test_pos_1_5_d2ull_rn() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.d2ull.rn(double 1.5)
+  ret i64 %res
+}
+
+
+define i64 @test_pos_1_5_d2ull_rp() {
+; CHECK-LABEL: define i64 @test_pos_1_5_d2ull_rp() {
+; CHECK-NEXT:    ret i64 2
+;
+  %res = call i64 @llvm.nvvm.d2ull.rp(double 1.5)
+  ret i64 %res
+}
+
+define i64 @test_pos_1_5_d2ull_rz() {
+; CHECK-LABEL: define i64 @test_pos_1_5_d2ull_rz() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.d2ull.rz(double 1.5)
+  ret i64 %res
+}
+
+;###############################################################
+;#               Tests with Negative 1.5                       #
+;###############################################################
+
+;+-------------------------------------------------------------+
+;|                        f2ll                                  |
+;+-------------------------------------------------------------+
+define i64 @test_neg_1_5_f2ll_rm() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ll_rm() {
+; CHECK-NEXT:    ret i64 -2
+;
+  %res = call i64 @llvm.nvvm.f2ll.rm(float -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_f2ll_rn() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ll_rn() {
+; CHECK-NEXT:    ret i64 -2
+;
+  %res = call i64 @llvm.nvvm.f2ll.rn(float -1.5)
+  ret i64 %res
+}
+
+
+define i64 @test_neg_1_5_f2ll_rp() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ll_rp() {
+; CHECK-NEXT:    ret i64 -1
+;
+  %res = call i64 @llvm.nvvm.f2ll.rp(float -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_f2ll_rz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ll_rz() {
+; CHECK-NEXT:    ret i64 -1
+;
+  %res = call i64 @llvm.nvvm.f2ll.rz(float -1.5)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ll_ftz                                |
+;+-------------------------------------------------------------+
+define i64 @test_neg_1_5_f2ll_rm_ftz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ll_rm_ftz() {
+; CHECK-NEXT:    ret i64 -2
+;
+  %res = call i64 @llvm.nvvm.f2ll.rm.ftz(float -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_f2ll_rn_ftz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ll_rn_ftz() {
+; CHECK-NEXT:    ret i64 -2
+;
+  %res = call i64 @llvm.nvvm.f2ll.rn.ftz(float -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_f2ll_rp_ftz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ll_rp_ftz() {
+; CHECK-NEXT:    ret i64 -1
+;
+  %res = call i64 @llvm.nvvm.f2ll.rp.ftz(float -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_f2ll_rz_ftz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ll_rz_ftz() {
+; CHECK-NEXT:    ret i64 -1
+;
+  %res = call i64 @llvm.nvvm.f2ll.rz.ftz(float -1.5)
+  ret i64 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ll                                  |
+;+-------------------------------------------------------------+
+define i64 @test_neg_1_5_d2ll_rm() {
+; CHECK-LABEL: define i64 @test_neg_1_5_d2ll_rm() {
+; CHECK-NEXT:    ret i64 -2
+;
+  %res = call i64 @llvm.nvvm.d2ll.rm(double -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_d2ll_rn() {
+; CHECK-LABEL: define i64 @test_neg_1_5_d2ll_rn() {
+; CHECK-NEXT:    ret i64 -2
+;
+  %res = call i64 @llvm.nvvm.d2ll.rn(double -1.5)
+  ret i64 %res
+}
+
+
+define i64 @test_neg_1_5_d2ll_rp() {
+; CHECK-LABEL: define i64 @test_neg_1_5_d2ll_rp() {
+; CHECK-NEXT:    ret i64 -1
+;
+  %res = call i64 @llvm.nvvm.d2ll.rp(double -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_d2ll_rz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_d2ll_rz() {
+; CHECK-NEXT:    ret i64 -1
+;
+  %res = call i64 @llvm.nvvm.d2ll.rz(double -1.5)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                        f2ull                                  |
+;+-------------------------------------------------------------+
+define i64 @test_neg_1_5_f2ull_rm() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ull_rm() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.f2ull.rm(float -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.f2ull.rm(float -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_f2ull_rn() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ull_rn() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.f2ull.rn(float -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.f2ull.rn(float -1.5)
+  ret i64 %res
+}
+
+
+define i64 @test_neg_1_5_f2ull_rp() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ull_rp() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.f2ull.rp(float -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.f2ull.rp(float -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_f2ull_rz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ull_rz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.f2ull.rz(float -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.f2ull.rz(float -1.5)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ull_ftz                                |
+;+-------------------------------------------------------------+
+define i64 @test_neg_1_5_f2ull_rm_ftz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ull_rm_ftz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.f2ull.rm.ftz(float -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.f2ull.rm.ftz(float -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_f2ull_rn_ftz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ull_rn_ftz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.f2ull.rn.ftz(float -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.f2ull.rn.ftz(float -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_f2ull_rp_ftz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ull_rp_ftz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.f2ull.rp.ftz(float -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.f2ull.rp.ftz(float -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_f2ull_rz_ftz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_f2ull_rz_ftz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.f2ull.rz.ftz(float -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.f2ull.rz.ftz(float -1.5)
+  ret i64 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ull                                  |
+;+-------------------------------------------------------------+
+define i64 @test_neg_1_5_d2ull_rm() {
+; CHECK-LABEL: define i64 @test_neg_1_5_d2ull_rm() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.d2ull.rm(double -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.d2ull.rm(double -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_d2ull_rn() {
+; CHECK-LABEL: define i64 @test_neg_1_5_d2ull_rn() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.d2ull.rn(double -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.d2ull.rn(double -1.5)
+  ret i64 %res
+}
+
+
+define i64 @test_neg_1_5_d2ull_rp() {
+; CHECK-LABEL: define i64 @test_neg_1_5_d2ull_rp() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.d2ull.rp(double -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.d2ull.rp(double -1.5)
+  ret i64 %res
+}
+
+define i64 @test_neg_1_5_d2ull_rz() {
+; CHECK-LABEL: define i64 @test_neg_1_5_d2ull_rz() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.d2ull.rz(double -1.500000e+00)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.d2ull.rz(double -1.5)
+  ret i64 %res
+}
+
+;###############################################################
+;#                    Tests with NaN                           #
+;###############################################################
+
+;+-------------------------------------------------------------+
+;|                        f2ll                                  |
+;+-------------------------------------------------------------+
+define i64 @test_nan_f2ll_rm() {
+; CHECK-LABEL: define i64 @test_nan_f2ll_rm() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rm(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_f2ll_rn() {
+; CHECK-LABEL: define i64 @test_nan_f2ll_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rn(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+
+define i64 @test_nan_f2ll_rp() {
+; CHECK-LABEL: define i64 @test_nan_f2ll_rp() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rp(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_f2ll_rz() {
+; CHECK-LABEL: define i64 @test_nan_f2ll_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rz(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ll_ftz                                |
+;+-------------------------------------------------------------+
+define i64 @test_nan_f2ll_rm_ftz() {
+; CHECK-LABEL: define i64 @test_nan_f2ll_rm_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rm.ftz(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_f2ll_rn_ftz() {
+; CHECK-LABEL: define i64 @test_nan_f2ll_rn_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rn.ftz(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_f2ll_rp_ftz() {
+; CHECK-LABEL: define i64 @test_nan_f2ll_rp_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rp.ftz(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_f2ll_rz_ftz() {
+; CHECK-LABEL: define i64 @test_nan_f2ll_rz_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rz.ftz(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ll                                  |
+;+-------------------------------------------------------------+
+define i64 @test_nan_d2ll_rm() {
+; CHECK-LABEL: define i64 @test_nan_d2ll_rm() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ll.rm(double 0xFFF8000000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_d2ll_rn() {
+; CHECK-LABEL: define i64 @test_nan_d2ll_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ll.rn(double 0xFFF8000000000000)
+  ret i64 %res
+}
+
+
+define i64 @test_nan_d2ll_rp() {
+; CHECK-LABEL: define i64 @test_nan_d2ll_rp() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ll.rp(double 0xFFF8000000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_d2ll_rz() {
+; CHECK-LABEL: define i64 @test_nan_d2ll_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ll.rz(double 0xFFF8000000000000)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                        f2ull                                  |
+;+-------------------------------------------------------------+
+define i64 @test_nan_f2ull_rm() {
+; CHECK-LABEL: define i64 @test_nan_f2ull_rm() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rm(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_f2ull_rn() {
+; CHECK-LABEL: define i64 @test_nan_f2ull_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rn(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+
+define i64 @test_nan_f2ull_rp() {
+; CHECK-LABEL: define i64 @test_nan_f2ull_rp() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rp(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_f2ull_rz() {
+; CHECK-LABEL: define i64 @test_nan_f2ull_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rz(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ull_ftz                                |
+;+-------------------------------------------------------------+
+define i64 @test_nan_f2ull_rm_ftz() {
+; CHECK-LABEL: define i64 @test_nan_f2ull_rm_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rm.ftz(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_f2ull_rn_ftz() {
+; CHECK-LABEL: define i64 @test_nan_f2ull_rn_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rn.ftz(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_f2ull_rp_ftz() {
+; CHECK-LABEL: define i64 @test_nan_f2ull_rp_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rp.ftz(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_f2ull_rz_ftz() {
+; CHECK-LABEL: define i64 @test_nan_f2ull_rz_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rz.ftz(float 0x7FFFFF0000000000)
+  ret i64 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ull                                  |
+;+-------------------------------------------------------------+
+define i64 @test_nan_d2ull_rm() {
+; CHECK-LABEL: define i64 @test_nan_d2ull_rm() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ull.rm(double 0xFFF8000000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_d2ull_rn() {
+; CHECK-LABEL: define i64 @test_nan_d2ull_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ull.rn(double 0xFFF8000000000000)
+  ret i64 %res
+}
+
+
+define i64 @test_nan_d2ull_rp() {
+; CHECK-LABEL: define i64 @test_nan_d2ull_rp() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ull.rp(double 0xFFF8000000000000)
+  ret i64 %res
+}
+
+define i64 @test_nan_d2ull_rz() {
+; CHECK-LABEL: define i64 @test_nan_d2ull_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ull.rz(double 0xFFF8000000000000)
+  ret i64 %res
+}
+
+;###############################################################
+;#            Tests with Positive Subnormal                    #
+;###############################################################
+
+;+-------------------------------------------------------------+
+;|                        f2ll                                  |
+;+-------------------------------------------------------------+
+define i64 @test_pos_subnormal_f2ll_rm() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ll_rm() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rm(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_f2ll_rn() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ll_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rn(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+
+define i64 @test_pos_subnormal_f2ll_rp() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ll_rp() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.f2ll.rp(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_f2ll_rz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ll_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rz(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ll_ftz                                |
+;+-------------------------------------------------------------+
+define i64 @test_pos_subnormal_f2ll_rm_ftz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ll_rm_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rm.ftz(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_f2ll_rn_ftz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ll_rn_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rn.ftz(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_f2ll_rp_ftz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ll_rp_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rp.ftz(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_f2ll_rz_ftz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ll_rz_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rz.ftz(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ll                                  |
+;+-------------------------------------------------------------+
+define i64 @test_pos_subnormal_d2ll_rm() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_d2ll_rm() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ll.rm(double 0x000fffffffffffff)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_d2ll_rn() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_d2ll_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ll.rn(double 0x000fffffffffffff)
+  ret i64 %res
+}
+
+
+define i64 @test_pos_subnormal_d2ll_rp() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_d2ll_rp() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.d2ll.rp(double 0x000fffffffffffff)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_d2ll_rz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_d2ll_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ll.rz(double 0x000fffffffffffff)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                        f2ull                                  |
+;+-------------------------------------------------------------+
+define i64 @test_pos_subnormal_f2ull_rm() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ull_rm() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rm(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_f2ull_rn() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ull_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rn(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+
+define i64 @test_pos_subnormal_f2ull_rp() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ull_rp() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.f2ull.rp(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_f2ull_rz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ull_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rz(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ull_ftz                                |
+;+-------------------------------------------------------------+
+define i64 @test_pos_subnormal_f2ull_rm_ftz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ull_rm_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rm.ftz(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_f2ull_rn_ftz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ull_rn_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rn.ftz(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_f2ull_rp_ftz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ull_rp_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rp.ftz(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_f2ull_rz_ftz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_f2ull_rz_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rz.ftz(float 0x380FFFFFC0000000)
+  ret i64 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ull                                  |
+;+-------------------------------------------------------------+
+define i64 @test_pos_subnormal_d2ull_rm() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_d2ull_rm() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ull.rm(double 0x000fffffffffffff)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_d2ull_rn() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_d2ull_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ull.rn(double 0x000fffffffffffff)
+  ret i64 %res
+}
+
+
+define i64 @test_pos_subnormal_d2ull_rp() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_d2ull_rp() {
+; CHECK-NEXT:    ret i64 1
+;
+  %res = call i64 @llvm.nvvm.d2ull.rp(double 0x000fffffffffffff)
+  ret i64 %res
+}
+
+define i64 @test_pos_subnormal_d2ull_rz() {
+; CHECK-LABEL: define i64 @test_pos_subnormal_d2ull_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ull.rz(double 0x000fffffffffffff)
+  ret i64 %res
+}
+
+;###############################################################
+;#            Tests with Negative Subnormal                    #
+;###############################################################
+
+;+-------------------------------------------------------------+
+;|                        f2ll                                  |
+;+-------------------------------------------------------------+
+define i64 @test_neg_subnormal_f2ll_rm() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ll_rm() {
+; CHECK-NEXT:    ret i64 -1
+;
+  %res = call i64 @llvm.nvvm.f2ll.rm(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_f2ll_rn() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ll_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rn(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+
+define i64 @test_neg_subnormal_f2ll_rp() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ll_rp() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rp(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_f2ll_rz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ll_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rz(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ll_ftz                                |
+;+-------------------------------------------------------------+
+define i64 @test_neg_subnormal_f2ll_rm_ftz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ll_rm_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rm.ftz(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_f2ll_rn_ftz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ll_rn_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rn.ftz(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_f2ll_rp_ftz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ll_rp_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rp.ftz(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_f2ll_rz_ftz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ll_rz_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ll.rz.ftz(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ll                                  |
+;+-------------------------------------------------------------+
+define i64 @test_neg_subnormal_d2ll_rm() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_d2ll_rm() {
+; CHECK-NEXT:    ret i64 -1
+;
+  %res = call i64 @llvm.nvvm.d2ll.rm(double 0x800fffffffffffff)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_d2ll_rn() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_d2ll_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ll.rn(double 0x800fffffffffffff)
+  ret i64 %res
+}
+
+
+define i64 @test_neg_subnormal_d2ll_rp() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_d2ll_rp() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ll.rp(double 0x800fffffffffffff)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_d2ll_rz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_d2ll_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ll.rz(double 0x800fffffffffffff)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                        f2ull                                  |
+;+-------------------------------------------------------------+
+define i64 @test_neg_subnormal_f2ull_rm() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ull_rm() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.f2ull.rm(float 0xB80FFFFFC0000000)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.f2ull.rm(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_f2ull_rn() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ull_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rn(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+
+define i64 @test_neg_subnormal_f2ull_rp() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ull_rp() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rp(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_f2ull_rz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ull_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rz(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+;+-------------------------------------------------------------+
+;|                      f2ull_ftz                                |
+;+-------------------------------------------------------------+
+define i64 @test_neg_subnormal_f2ull_rm_ftz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ull_rm_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rm.ftz(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_f2ull_rn_ftz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ull_rn_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rn.ftz(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_f2ull_rp_ftz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ull_rp_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rp.ftz(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_f2ull_rz_ftz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_f2ull_rz_ftz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.f2ull.rz.ftz(float 0xB80FFFFFC0000000)
+  ret i64 %res
+}
+;+-------------------------------------------------------------+
+;|                        d2ull                                  |
+;+-------------------------------------------------------------+
+define i64 @test_neg_subnormal_d2ull_rm() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_d2ull_rm() {
+; CHECK-NEXT:    [[RES:%.*]] = call i64 @llvm.nvvm.d2ull.rm(double 0x800FFFFFFFFFFFFF)
+; CHECK-NEXT:    ret i64 [[RES]]
+;
+  %res = call i64 @llvm.nvvm.d2ull.rm(double 0x800fffffffffffff)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_d2ull_rn() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_d2ull_rn() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ull.rn(double 0x800fffffffffffff)
+  ret i64 %res
+}
+
+
+define i64 @test_neg_subnormal_d2ull_rp() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_d2ull_rp() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ull.rp(double 0x800fffffffffffff)
+  ret i64 %res
+}
+
+define i64 @test_neg_subnormal_d2ull_rz() {
+; CHECK-LABEL: define i64 @test_neg_subnormal_d2ull_rz() {
+; CHECK-NEXT:    ret i64 0
+;
+  %res = call i64 @llvm.nvvm.d2ull.rz(double 0x800fffffffffffff)
+  ret i64 %res
+}
+
+declare i64 @llvm.nvvm.f2ll.rm(float)
+declare i64 @llvm.nvvm.f2ll.rn(float)
+declare i64 @llvm.nvvm.f2ll.rp(float)
+declare i64 @llvm.nvvm.f2ll.rz(float)
+
+declare i64 @llvm.nvvm.f2ll.rm.ftz(float)
+declare i64 @llvm.nvvm.f2ll.rn.ftz(float)
+declare i64 @llvm.nvvm.f2ll.rp.ftz(float)
+declare i64 @llvm.nvvm.f2ll.rz.ftz(float)
+
+declare i64 @llvm.nvvm.d2ll.rm(double)
+declare i64 @llvm.nvvm.d2ll.rn(double)
+declare i64 @llvm.nvvm.d2ll.rp(double)
+declare i64 @llvm.nvvm.d2ll.rz(double)
+
+
+declare i64 @llvm.nvvm.f2ull.rm(float)
+declare i64 @llvm.nvvm.f2ull.rn(float)
+declare i64 @llvm.nvvm.f2ull.rp(float)
+declare i64 @llvm.nvvm.f2ull.rz(float)
+
+declare i64 @llvm.nvvm.f2ull.rm.ftz(float)
+declare i64 @llvm.nvvm.f2ull.rn.ftz(float)
+declare i64 @llvm.nvvm.f2ull.rp.ftz(float)
+declare i64 @llvm.nvvm.f2ull.rz.ftz(float)
+
+declare i64 @llvm.nvvm.d2ull.rm(double)
+declare i64 @llvm.nvvm.d2ull.rn(double)
+declare i64 @llvm.nvvm.d2ull.rp(double)
+declare i64 @llvm.nvvm.d2ull.rz(double)



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