[llvm] 430a40d - [NVPTX] extend type support for nvvm.{min,max,mulhi,sad} (#78385)

via llvm-commits llvm-commits at lists.llvm.org
Wed Jan 17 16:18:43 PST 2024


Author: Alex MacLean
Date: 2024-01-17T16:18:39-08:00
New Revision: 430a40d12eaa5a61792c4670955c110146902afb

URL: https://github.com/llvm/llvm-project/commit/430a40d12eaa5a61792c4670955c110146902afb
DIFF: https://github.com/llvm/llvm-project/commit/430a40d12eaa5a61792c4670955c110146902afb.diff

LOG: [NVPTX] extend type support for nvvm.{min,max,mulhi,sad} (#78385)

Ensure intrinsics and auto-upgrades support i16, i32, and i64 for for
`nvvm.{min,max,mulhi,sad}`

- `nvvm.min` and `nvvm.max`: These are auto-upgraded to `select`
instructions but it is still nice to support the 16 bit variants just in
case any generators of IR are still trying to use these intrinsics.
- `nvvm.sad` added both the 16 and 64 bit variants, also marked this
instruction as speculateble. These directly correspond to the PTX
`sad.{u16,s16,u64,s64}` instructions.
- `nvvm.mulhi` added the 16 bit variants. These directly correspond to
the PTX `mul.hi.{s,u}16` instructions.

Added: 
    llvm/test/CodeGen/NVPTX/mulhi-intrins.ll
    llvm/test/CodeGen/NVPTX/sad-intrins.ll

Modified: 
    llvm/include/llvm/IR/IntrinsicsNVVM.td
    llvm/lib/IR/AutoUpgrade.cpp
    llvm/lib/Target/NVPTX/NVPTXIntrinsics.td
    llvm/test/Assembler/auto_upgrade_nvvm_intrinsics.ll

Removed: 
    


################################################################################
diff  --git a/llvm/include/llvm/IR/IntrinsicsNVVM.td b/llvm/include/llvm/IR/IntrinsicsNVVM.td
index 2c8f28ac941c33..bcc3bf2695f8ab 100644
--- a/llvm/include/llvm/IR/IntrinsicsNVVM.td
+++ b/llvm/include/llvm/IR/IntrinsicsNVVM.td
@@ -615,6 +615,13 @@ let TargetPrefix = "nvvm" in {
 // Multiplication
 //
 
+  def int_nvvm_mulhi_s : ClangBuiltin<"__nvvm_mulhi_s">,
+      DefaultAttrsIntrinsic<[llvm_i16_ty], [llvm_i16_ty, llvm_i16_ty],
+        [IntrNoMem, IntrSpeculatable, Commutative]>;
+  def int_nvvm_mulhi_us : ClangBuiltin<"__nvvm_mulhi_us">,
+      DefaultAttrsIntrinsic<[llvm_i16_ty], [llvm_i16_ty, llvm_i16_ty],
+        [IntrNoMem, IntrSpeculatable, Commutative]>;
+
   def int_nvvm_mulhi_i : ClangBuiltin<"__nvvm_mulhi_i">,
       DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
         [IntrNoMem, IntrSpeculatable, Commutative]>;
@@ -730,12 +737,27 @@ let TargetPrefix = "nvvm" in {
 // Sad
 //
 
+  def int_nvvm_sad_s : ClangBuiltin<"__nvvm_sad_s">,
+      DefaultAttrsIntrinsic<[llvm_i16_ty], [llvm_i16_ty, llvm_i16_ty, llvm_i16_ty],
+        [IntrNoMem, Commutative, IntrSpeculatable]>;
+  def int_nvvm_sad_us : ClangBuiltin<"__nvvm_sad_us">,
+      DefaultAttrsIntrinsic<[llvm_i16_ty], [llvm_i16_ty, llvm_i16_ty, llvm_i16_ty],
+        [IntrNoMem, Commutative, IntrSpeculatable]>;
+
   def int_nvvm_sad_i : ClangBuiltin<"__nvvm_sad_i">,
       DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
-        [IntrNoMem, Commutative]>;
+        [IntrNoMem, Commutative, IntrSpeculatable]>;
   def int_nvvm_sad_ui : ClangBuiltin<"__nvvm_sad_ui">,
       DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty],
-        [IntrNoMem, Commutative]>;
+        [IntrNoMem, Commutative, IntrSpeculatable]>;
+
+  def int_nvvm_sad_ll : ClangBuiltin<"__nvvm_sad_ll">,
+      DefaultAttrsIntrinsic<[llvm_i64_ty], [llvm_i64_ty, llvm_i64_ty, llvm_i64_ty],
+        [IntrNoMem, Commutative, IntrSpeculatable]>;
+  def int_nvvm_sad_ull : ClangBuiltin<"__nvvm_sad_ull">,
+      DefaultAttrsIntrinsic<[llvm_i64_ty], [llvm_i64_ty, llvm_i64_ty, llvm_i64_ty],
+        [IntrNoMem, Commutative, IntrSpeculatable]>;
+
 
 //
 // Floor  Ceil

diff  --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp
index 1a9e474911b39c..d2338e0eaa8d4e 100644
--- a/llvm/lib/IR/AutoUpgrade.cpp
+++ b/llvm/lib/IR/AutoUpgrade.cpp
@@ -1209,7 +1209,8 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
         Expand = true;
       else if (Name.consume_front("max.") || Name.consume_front("min."))
         // nvvm.{min,max}.{i,ii,ui,ull}
-        Expand = Name == "i" || Name == "ll" || Name == "ui" || Name == "ull";
+        Expand = Name == "s" || Name == "i" || Name == "ll" || Name == "us" ||
+                 Name == "ui" || Name == "ull";
       else if (Name.consume_front("atomic.load.add."))
         // nvvm.atomic.load.add.{f32.p,f64.p}
         Expand = Name.starts_with("f32.p") || Name.starts_with("f64.p");
@@ -4132,19 +4133,21 @@ void llvm::UpgradeIntrinsicCall(CallBase *CI, Function *NewFn) {
       Value *Val = CI->getArgOperand(1);
       Rep = Builder.CreateAtomicRMW(AtomicRMWInst::FAdd, Ptr, Val, MaybeAlign(),
                                     AtomicOrdering::SequentiallyConsistent);
-    } else if (IsNVVM && (Name == "max.i" || Name == "max.ll" ||
-                          Name == "max.ui" || Name == "max.ull")) {
+    } else if (IsNVVM && Name.consume_front("max.") &&
+               (Name == "s" || Name == "i" || Name == "ll" || Name == "us" ||
+                Name == "ui" || Name == "ull")) {
       Value *Arg0 = CI->getArgOperand(0);
       Value *Arg1 = CI->getArgOperand(1);
-      Value *Cmp = Name.ends_with(".ui") || Name.ends_with(".ull")
+      Value *Cmp = Name.starts_with("u")
                        ? Builder.CreateICmpUGE(Arg0, Arg1, "max.cond")
                        : Builder.CreateICmpSGE(Arg0, Arg1, "max.cond");
       Rep = Builder.CreateSelect(Cmp, Arg0, Arg1, "max");
-    } else if (IsNVVM && (Name == "min.i" || Name == "min.ll" ||
-                          Name == "min.ui" || Name == "min.ull")) {
+    } else if (IsNVVM && Name.consume_front("min.") &&
+               (Name == "s" || Name == "i" || Name == "ll" || Name == "us" ||
+                Name == "ui" || Name == "ull")) {
       Value *Arg0 = CI->getArgOperand(0);
       Value *Arg1 = CI->getArgOperand(1);
-      Value *Cmp = Name.ends_with(".ui") || Name.ends_with(".ull")
+      Value *Cmp = Name.starts_with("u")
                        ? Builder.CreateICmpULE(Arg0, Arg1, "min.cond")
                        : Builder.CreateICmpSLE(Arg0, Arg1, "min.cond");
       Rep = Builder.CreateSelect(Cmp, Arg0, Arg1, "min");

diff  --git a/llvm/lib/Target/NVPTX/NVPTXIntrinsics.td b/llvm/lib/Target/NVPTX/NVPTXIntrinsics.td
index 7b78ffe4e94701..15a136faf45747 100644
--- a/llvm/lib/Target/NVPTX/NVPTXIntrinsics.td
+++ b/llvm/lib/Target/NVPTX/NVPTXIntrinsics.td
@@ -770,11 +770,14 @@ defm INT_NVVM_FMAN : MIN_MAX<"max">;
 // Multiplication
 //
 
+def INT_NVVM_MULHI_S : F_MATH_2<"mul.hi.s16 \t$dst, $src0, $src1;", Int16Regs,
+  Int16Regs, Int16Regs, int_nvvm_mulhi_s>;
+def INT_NVVM_MULHI_US : F_MATH_2<"mul.hi.u16 \t$dst, $src0, $src1;", Int16Regs,
+  Int16Regs, Int16Regs, int_nvvm_mulhi_us>;
 def INT_NVVM_MULHI_I : F_MATH_2<"mul.hi.s32 \t$dst, $src0, $src1;", Int32Regs,
   Int32Regs, Int32Regs, int_nvvm_mulhi_i>;
 def INT_NVVM_MULHI_UI : F_MATH_2<"mul.hi.u32 \t$dst, $src0, $src1;", Int32Regs,
   Int32Regs, Int32Regs, int_nvvm_mulhi_ui>;
-
 def INT_NVVM_MULHI_LL : F_MATH_2<"mul.hi.s64 \t$dst, $src0, $src1;", Int64Regs,
   Int64Regs, Int64Regs, int_nvvm_mulhi_ll>;
 def INT_NVVM_MULHI_ULL : F_MATH_2<"mul.hi.u64 \t$dst, $src0, $src1;", Int64Regs,
@@ -851,10 +854,18 @@ def INT_NVVM_DIV_RP_D : F_MATH_2<"div.rp.f64 \t$dst, $src0, $src1;",
 // Sad
 //
 
+def INT_NVVM_SAD_S : F_MATH_3<"sad.s16 \t$dst, $src0, $src1, $src2;",
+  Int16Regs, Int16Regs, Int16Regs, Int16Regs, int_nvvm_sad_s>;
+def INT_NVVM_SAD_US : F_MATH_3<"sad.u16 \t$dst, $src0, $src1, $src2;",
+  Int16Regs, Int16Regs, Int16Regs, Int16Regs, int_nvvm_sad_us>;
 def INT_NVVM_SAD_I : F_MATH_3<"sad.s32 \t$dst, $src0, $src1, $src2;",
   Int32Regs, Int32Regs, Int32Regs, Int32Regs, int_nvvm_sad_i>;
 def INT_NVVM_SAD_UI : F_MATH_3<"sad.u32 \t$dst, $src0, $src1, $src2;",
   Int32Regs, Int32Regs, Int32Regs, Int32Regs, int_nvvm_sad_ui>;
+def INT_NVVM_SAD_LL : F_MATH_3<"sad.s64 \t$dst, $src0, $src1, $src2;",
+  Int64Regs, Int64Regs, Int64Regs, Int64Regs, int_nvvm_sad_ll>;
+def INT_NVVM_SAD_ULL : F_MATH_3<"sad.u64 \t$dst, $src0, $src1, $src2;",
+  Int64Regs, Int64Regs, Int64Regs, Int64Regs, int_nvvm_sad_ull>;
 
 //
 // Floor  Ceil

diff  --git a/llvm/test/Assembler/auto_upgrade_nvvm_intrinsics.ll b/llvm/test/Assembler/auto_upgrade_nvvm_intrinsics.ll
index a295e5ea7ff004..1c11e1221fef34 100644
--- a/llvm/test/Assembler/auto_upgrade_nvvm_intrinsics.ll
+++ b/llvm/test/Assembler/auto_upgrade_nvvm_intrinsics.ll
@@ -13,12 +13,16 @@ declare float @llvm.nvvm.h2f(i16)
 declare i32 @llvm.nvvm.abs.i(i32)
 declare i64 @llvm.nvvm.abs.ll(i64)
 
+declare i16 @llvm.nvvm.max.s(i16, i16)
 declare i32 @llvm.nvvm.max.i(i32, i32)
 declare i64 @llvm.nvvm.max.ll(i64, i64)
+declare i16 @llvm.nvvm.max.us(i16, i16)
 declare i32 @llvm.nvvm.max.ui(i32, i32)
 declare i64 @llvm.nvvm.max.ull(i64, i64)
+declare i16 @llvm.nvvm.min.s(i16, i16)
 declare i32 @llvm.nvvm.min.i(i32, i32)
 declare i64 @llvm.nvvm.min.ll(i64, i64)
+declare i16 @llvm.nvvm.min.us(i16, i16)
 declare i32 @llvm.nvvm.min.ui(i32, i32)
 declare i64 @llvm.nvvm.min.ull(i64, i64)
 
@@ -65,38 +69,54 @@ define void @abs(i32 %a, i64 %b) {
 }
 
 ; CHECK-LABEL: @min_max
-define void @min_max(i32 %a1, i32 %a2, i64 %b1, i64 %b2) {
-; CHECK: [[maxi:%[a-zA-Z0-9.]+]] = icmp sge i32 %a1, %a2
-; CHECK: select i1 [[maxi]], i32 %a1, i32 %a2
-  %r1 = call i32 @llvm.nvvm.max.i(i32 %a1, i32 %a2)
-
-; CHECK: [[maxll:%[a-zA-Z0-9.]+]] = icmp sge i64 %b1, %b2
-; CHECK: select i1 [[maxll]], i64 %b1, i64 %b2
-  %r2 = call i64 @llvm.nvvm.max.ll(i64 %b1, i64 %b2)
-
-; CHECK: [[maxui:%[a-zA-Z0-9.]+]] = icmp uge i32 %a1, %a2
-; CHECK: select i1 [[maxui]], i32 %a1, i32 %a2
-  %r3 = call i32 @llvm.nvvm.max.ui(i32 %a1, i32 %a2)
-
-; CHECK: [[maxull:%[a-zA-Z0-9.]+]] = icmp uge i64 %b1, %b2
-; CHECK: select i1 [[maxull]], i64 %b1, i64 %b2
-  %r4 = call i64 @llvm.nvvm.max.ull(i64 %b1, i64 %b2)
-
-; CHECK: [[mini:%[a-zA-Z0-9.]+]] = icmp sle i32 %a1, %a2
-; CHECK: select i1 [[mini]], i32 %a1, i32 %a2
-  %r5 = call i32 @llvm.nvvm.min.i(i32 %a1, i32 %a2)
-
-; CHECK: [[minll:%[a-zA-Z0-9.]+]] = icmp sle i64 %b1, %b2
-; CHECK: select i1 [[minll]], i64 %b1, i64 %b2
-  %r6 = call i64 @llvm.nvvm.min.ll(i64 %b1, i64 %b2)
-
-; CHECK: [[minui:%[a-zA-Z0-9.]+]] = icmp ule i32 %a1, %a2
-; CHECK: select i1 [[minui]], i32 %a1, i32 %a2
-  %r7 = call i32 @llvm.nvvm.min.ui(i32 %a1, i32 %a2)
-
-; CHECK: [[minull:%[a-zA-Z0-9.]+]] = icmp ule i64 %b1, %b2
-; CHECK: select i1 [[minull]], i64 %b1, i64 %b2
-  %r8 = call i64 @llvm.nvvm.min.ull(i64 %b1, i64 %b2)
+define void @min_max(i16 %a1, i16 %a2, i32 %b1, i32 %b2, i64 %c1, i64 %c2) {
+; CHECK: [[maxs:%[a-zA-Z0-9.]+]] = icmp sge i16 %a1, %a2
+; CHECK: select i1 [[maxs]], i16 %a1, i16 %a2
+  %r1 = call i16 @llvm.nvvm.max.s(i16 %a1, i16 %a2)
+
+; CHECK: [[maxi:%[a-zA-Z0-9.]+]] = icmp sge i32 %b1, %b2
+; CHECK: select i1 [[maxi]], i32 %b1, i32 %b2
+  %r2 = call i32 @llvm.nvvm.max.i(i32 %b1, i32 %b2)
+
+; CHECK: [[maxll:%[a-zA-Z0-9.]+]] = icmp sge i64 %c1, %c2
+; CHECK: select i1 [[maxll]], i64 %c1, i64 %c2
+  %r3 = call i64 @llvm.nvvm.max.ll(i64 %c1, i64 %c2)
+
+; CHECK: [[maxus:%[a-zA-Z0-9.]+]] = icmp uge i16 %a1, %a2
+; CHECK: select i1 [[maxus]], i16 %a1, i16 %a2
+  %r4 = call i16 @llvm.nvvm.max.us(i16 %a1, i16 %a2)
+
+; CHECK: [[maxui:%[a-zA-Z0-9.]+]] = icmp uge i32 %b1, %b2
+; CHECK: select i1 [[maxui]], i32 %b1, i32 %b2
+  %r5 = call i32 @llvm.nvvm.max.ui(i32 %b1, i32 %b2)
+
+; CHECK: [[maxull:%[a-zA-Z0-9.]+]] = icmp uge i64 %c1, %c2
+; CHECK: select i1 [[maxull]], i64 %c1, i64 %c2
+  %r6 = call i64 @llvm.nvvm.max.ull(i64 %c1, i64 %c2)
+
+; CHECK: [[mins:%[a-zA-Z0-9.]+]] = icmp sle i16 %a1, %a2
+; CHECK: select i1 [[mins]], i16 %a1, i16 %a2
+  %r7 = call i16 @llvm.nvvm.min.s(i16 %a1, i16 %a2)
+
+; CHECK: [[mini:%[a-zA-Z0-9.]+]] = icmp sle i32 %b1, %b2
+; CHECK: select i1 [[mini]], i32 %b1, i32 %b2
+  %r8 = call i32 @llvm.nvvm.min.i(i32 %b1, i32 %b2)
+
+; CHECK: [[minll:%[a-zA-Z0-9.]+]] = icmp sle i64 %c1, %c2
+; CHECK: select i1 [[minll]], i64 %c1, i64 %c2
+  %r9 = call i64 @llvm.nvvm.min.ll(i64 %c1, i64 %c2)
+
+; CHECK: [[minus:%[a-zA-Z0-9.]+]] = icmp ule i16 %a1, %a2
+; CHECK: select i1 [[minus]], i16 %a1, i16 %a2
+  %r10 = call i16 @llvm.nvvm.min.us(i16 %a1, i16 %a2)
+
+; CHECK: [[minui:%[a-zA-Z0-9.]+]] = icmp ule i32 %b1, %b2
+; CHECK: select i1 [[minui]], i32 %b1, i32 %b2
+  %r11 = call i32 @llvm.nvvm.min.ui(i32 %b1, i32 %b2)
+
+; CHECK: [[minull:%[a-zA-Z0-9.]+]] = icmp ule i64 %c1, %c2
+; CHECK: select i1 [[minull]], i64 %c1, i64 %c2
+  %r12 = call i64 @llvm.nvvm.min.ull(i64 %c1, i64 %c2)
 
   ret void
 }

diff  --git a/llvm/test/CodeGen/NVPTX/mulhi-intrins.ll b/llvm/test/CodeGen/NVPTX/mulhi-intrins.ll
new file mode 100644
index 00000000000000..efa99462b9b11c
--- /dev/null
+++ b/llvm/test/CodeGen/NVPTX/mulhi-intrins.ll
@@ -0,0 +1,104 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_50 | FileCheck %s
+; RUN: %if ptxas %{ llc < %s -mtriple=nvptx64 -mcpu=sm_50 | %ptxas-verify %}
+
+define i16 @test_mulhi_i16(i16 %x, i16 %y) {
+; CHECK-LABEL: test_mulhi_i16(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b16 %rs<4>;
+; CHECK-NEXT:    .reg .b32 %r<2>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u16 %rs1, [test_mulhi_i16_param_0];
+; CHECK-NEXT:    ld.param.u16 %rs2, [test_mulhi_i16_param_1];
+; CHECK-NEXT:    mul.hi.s16 %rs3, %rs1, %rs2;
+; CHECK-NEXT:    cvt.u32.u16 %r1, %rs3;
+; CHECK-NEXT:    st.param.b32 [func_retval0+0], %r1;
+; CHECK-NEXT:    ret;
+  %1 = call i16 @llvm.nvvm.mulhi.s(i16 %x, i16 %y)
+  ret i16 %1
+}
+
+define i16 @test_mulhi_u16(i16 %x, i16 %y) {
+; CHECK-LABEL: test_mulhi_u16(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b16 %rs<4>;
+; CHECK-NEXT:    .reg .b32 %r<2>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u16 %rs1, [test_mulhi_u16_param_0];
+; CHECK-NEXT:    ld.param.u16 %rs2, [test_mulhi_u16_param_1];
+; CHECK-NEXT:    mul.hi.u16 %rs3, %rs1, %rs2;
+; CHECK-NEXT:    cvt.u32.u16 %r1, %rs3;
+; CHECK-NEXT:    st.param.b32 [func_retval0+0], %r1;
+; CHECK-NEXT:    ret;
+  %1 = call i16 @llvm.nvvm.mulhi.us(i16 %x, i16 %y)
+  ret i16 %1
+}
+
+define i32 @test_mulhi_i32(i32 %x, i32 %y) {
+; CHECK-LABEL: test_mulhi_i32(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b32 %r<4>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u32 %r1, [test_mulhi_i32_param_0];
+; CHECK-NEXT:    ld.param.u32 %r2, [test_mulhi_i32_param_1];
+; CHECK-NEXT:    mul.hi.s32 %r3, %r1, %r2;
+; CHECK-NEXT:    st.param.b32 [func_retval0+0], %r3;
+; CHECK-NEXT:    ret;
+  %1 = call i32 @llvm.nvvm.mulhi.i(i32 %x, i32 %y)
+  ret i32 %1
+}
+
+define i32 @test_mulhi_u32(i32 %x, i32 %y) {
+; CHECK-LABEL: test_mulhi_u32(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b32 %r<4>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u32 %r1, [test_mulhi_u32_param_0];
+; CHECK-NEXT:    ld.param.u32 %r2, [test_mulhi_u32_param_1];
+; CHECK-NEXT:    mul.hi.u32 %r3, %r1, %r2;
+; CHECK-NEXT:    st.param.b32 [func_retval0+0], %r3;
+; CHECK-NEXT:    ret;
+  %1 = call i32 @llvm.nvvm.mulhi.ui(i32 %x, i32 %y)
+  ret i32 %1
+}
+
+define i64 @test_mulhi_i64(i64 %x, i64 %y) {
+; CHECK-LABEL: test_mulhi_i64(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b64 %rd<4>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u64 %rd1, [test_mulhi_i64_param_0];
+; CHECK-NEXT:    ld.param.u64 %rd2, [test_mulhi_i64_param_1];
+; CHECK-NEXT:    mul.hi.s64 %rd3, %rd1, %rd2;
+; CHECK-NEXT:    st.param.b64 [func_retval0+0], %rd3;
+; CHECK-NEXT:    ret;
+  %1 = call i64 @llvm.nvvm.mulhi.ll(i64 %x, i64 %y)
+  ret i64 %1
+}
+
+define i64 @test_mulhi_u64(i64 %x, i64 %y) {
+; CHECK-LABEL: test_mulhi_u64(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b64 %rd<4>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u64 %rd1, [test_mulhi_u64_param_0];
+; CHECK-NEXT:    ld.param.u64 %rd2, [test_mulhi_u64_param_1];
+; CHECK-NEXT:    mul.hi.u64 %rd3, %rd1, %rd2;
+; CHECK-NEXT:    st.param.b64 [func_retval0+0], %rd3;
+; CHECK-NEXT:    ret;
+  %1 = call i64 @llvm.nvvm.mulhi.ull(i64 %x, i64 %y)
+  ret i64 %1
+}
+
+declare i16 @llvm.nvvm.mulhi.s(i16, i16)
+declare i16 @llvm.nvvm.mulhi.us(i16, i16)
+declare i32 @llvm.nvvm.mulhi.i(i32, i32)
+declare i32 @llvm.nvvm.mulhi.ui(i32, i32)
+declare i64 @llvm.nvvm.mulhi.ll(i64, i64)
+declare i64 @llvm.nvvm.mulhi.ull(i64, i64)

diff  --git a/llvm/test/CodeGen/NVPTX/sad-intrins.ll b/llvm/test/CodeGen/NVPTX/sad-intrins.ll
new file mode 100644
index 00000000000000..a09413bc4e5242
--- /dev/null
+++ b/llvm/test/CodeGen/NVPTX/sad-intrins.ll
@@ -0,0 +1,110 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_50 | FileCheck %s
+; RUN: %if ptxas %{ llc < %s -mtriple=nvptx64 -mcpu=sm_50 | %ptxas-verify %}
+
+define i16 @test_sad_i16(i16 %x, i16 %y, i16 %z) {
+; CHECK-LABEL: test_sad_i16(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b16 %rs<5>;
+; CHECK-NEXT:    .reg .b32 %r<2>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u16 %rs1, [test_sad_i16_param_0];
+; CHECK-NEXT:    ld.param.u16 %rs2, [test_sad_i16_param_1];
+; CHECK-NEXT:    ld.param.u16 %rs3, [test_sad_i16_param_2];
+; CHECK-NEXT:    sad.s16 %rs4, %rs1, %rs2, %rs3;
+; CHECK-NEXT:    cvt.u32.u16 %r1, %rs4;
+; CHECK-NEXT:    st.param.b32 [func_retval0+0], %r1;
+; CHECK-NEXT:    ret;
+  %1 = call i16 @llvm.nvvm.sad.s(i16 %x, i16 %y, i16 %z)
+  ret i16 %1
+}
+
+define i16 @test_sad_u16(i16 %x, i16 %y, i16 %z) {
+; CHECK-LABEL: test_sad_u16(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b16 %rs<5>;
+; CHECK-NEXT:    .reg .b32 %r<2>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u16 %rs1, [test_sad_u16_param_0];
+; CHECK-NEXT:    ld.param.u16 %rs2, [test_sad_u16_param_1];
+; CHECK-NEXT:    ld.param.u16 %rs3, [test_sad_u16_param_2];
+; CHECK-NEXT:    sad.u16 %rs4, %rs1, %rs2, %rs3;
+; CHECK-NEXT:    cvt.u32.u16 %r1, %rs4;
+; CHECK-NEXT:    st.param.b32 [func_retval0+0], %r1;
+; CHECK-NEXT:    ret;
+  %1 = call i16 @llvm.nvvm.sad.us(i16 %x, i16 %y, i16 %z)
+  ret i16 %1
+}
+
+define i32 @test_sad_i32(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: test_sad_i32(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b32 %r<5>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u32 %r1, [test_sad_i32_param_0];
+; CHECK-NEXT:    ld.param.u32 %r2, [test_sad_i32_param_1];
+; CHECK-NEXT:    ld.param.u32 %r3, [test_sad_i32_param_2];
+; CHECK-NEXT:    sad.s32 %r4, %r1, %r2, %r3;
+; CHECK-NEXT:    st.param.b32 [func_retval0+0], %r4;
+; CHECK-NEXT:    ret;
+  %1 = call i32 @llvm.nvvm.sad.i(i32 %x, i32 %y, i32 %z)
+  ret i32 %1
+}
+
+define i32 @test_sad_u32(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: test_sad_u32(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b32 %r<5>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u32 %r1, [test_sad_u32_param_0];
+; CHECK-NEXT:    ld.param.u32 %r2, [test_sad_u32_param_1];
+; CHECK-NEXT:    ld.param.u32 %r3, [test_sad_u32_param_2];
+; CHECK-NEXT:    sad.u32 %r4, %r1, %r2, %r3;
+; CHECK-NEXT:    st.param.b32 [func_retval0+0], %r4;
+; CHECK-NEXT:    ret;
+  %1 = call i32 @llvm.nvvm.sad.ui(i32 %x, i32 %y, i32 %z)
+  ret i32 %1
+}
+
+define i64 @test_sad_i64(i64 %x, i64 %y, i64 %z) {
+; CHECK-LABEL: test_sad_i64(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b64 %rd<5>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u64 %rd1, [test_sad_i64_param_0];
+; CHECK-NEXT:    ld.param.u64 %rd2, [test_sad_i64_param_1];
+; CHECK-NEXT:    ld.param.u64 %rd3, [test_sad_i64_param_2];
+; CHECK-NEXT:    sad.s64 %rd4, %rd1, %rd2, %rd3;
+; CHECK-NEXT:    st.param.b64 [func_retval0+0], %rd4;
+; CHECK-NEXT:    ret;
+  %1 = call i64 @llvm.nvvm.sad.ll(i64 %x, i64 %y, i64 %z)
+  ret i64 %1
+}
+
+define i64 @test_sad_u64(i64 %x, i64 %y, i64 %z) {
+; CHECK-LABEL: test_sad_u64(
+; CHECK:       {
+; CHECK-NEXT:    .reg .b64 %rd<5>;
+; CHECK-EMPTY:
+; CHECK-NEXT:  // %bb.0:
+; CHECK-NEXT:    ld.param.u64 %rd1, [test_sad_u64_param_0];
+; CHECK-NEXT:    ld.param.u64 %rd2, [test_sad_u64_param_1];
+; CHECK-NEXT:    ld.param.u64 %rd3, [test_sad_u64_param_2];
+; CHECK-NEXT:    sad.u64 %rd4, %rd1, %rd2, %rd3;
+; CHECK-NEXT:    st.param.b64 [func_retval0+0], %rd4;
+; CHECK-NEXT:    ret;
+  %1 = call i64 @llvm.nvvm.sad.ull(i64 %x, i64 %y, i64 %z)
+  ret i64 %1
+}
+
+declare i16 @llvm.nvvm.sad.s(i16, i16, i16)
+declare i16 @llvm.nvvm.sad.us(i16, i16, i16)
+declare i32 @llvm.nvvm.sad.i(i32, i32, i32)
+declare i32 @llvm.nvvm.sad.ui(i32, i32, i32)
+declare i64 @llvm.nvvm.sad.ll(i64, i64, i64)
+declare i64 @llvm.nvvm.sad.ull(i64, i64, i64)


        


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