[llvm] 7aeec64 - ValueTracking: Handle fptrunc_round in computeKnownFPClass
Matt Arsenault via llvm-commits
llvm-commits at lists.llvm.org
Mon Apr 24 19:31:28 PDT 2023
Author: Matt Arsenault
Date: 2023-04-24T22:31:20-04:00
New Revision: 7aeec64215cdbb2420756808a902a9e6807ecb30
URL: https://github.com/llvm/llvm-project/commit/7aeec64215cdbb2420756808a902a9e6807ecb30
DIFF: https://github.com/llvm/llvm-project/commit/7aeec64215cdbb2420756808a902a9e6807ecb30.diff
LOG: ValueTracking: Handle fptrunc_round in computeKnownFPClass
Added:
Modified:
llvm/lib/Analysis/ValueTracking.cpp
llvm/test/Transforms/Attributor/nofpclass-fptrunc.ll
Removed:
################################################################################
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index 6e7b807c19031..433e3ffd2b5b9 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -4420,8 +4420,28 @@ static void computeKnownFPClass(const Value *V, KnownFPClass &Known,
computeKnownFPClass(V, DemandedElts, InterestedClasses, Known, Depth, Q, TLI);
}
+static void computeKnownFPClassForFPTrunc(const Operator *Op,
+ const APInt &DemandedElts,
+ FPClassTest InterestedClasses,
+ KnownFPClass &Known, unsigned Depth,
+ const Query &Q,
+ const TargetLibraryInfo *TLI) {
+ if ((InterestedClasses & fcNan) == fcNone)
+ return;
+
+ KnownFPClass KnownSrc;
+ computeKnownFPClass(Op->getOperand(0), DemandedElts, InterestedClasses,
+ KnownSrc, Depth + 1, Q, TLI);
+ if (KnownSrc.isKnownNeverNaN())
+ Known.knownNot(fcNan);
+
+ // Infinity needs a range check.
+ // TODO: Sign bit should be preserved
+}
+
// TODO: Merge implementations of isKnownNeverNaN, isKnownNeverInfinity,
// CannotBeNegativeZero, cannotBeOrderedLessThanZero into here.
+
void computeKnownFPClass(const Value *V, const APInt &DemandedElts,
FPClassTest InterestedClasses, KnownFPClass &Known,
unsigned Depth, const Query &Q,
@@ -4633,6 +4653,11 @@ void computeKnownFPClass(const Value *V, const APInt &DemandedElts,
break;
}
+ case Intrinsic::fptrunc_round: {
+ computeKnownFPClassForFPTrunc(Op, DemandedElts, InterestedClasses,
+ Known, Depth, Q, TLI);
+ break;
+ }
case Intrinsic::arithmetic_fence: {
computeKnownFPClass(II->getArgOperand(0), DemandedElts,
InterestedClasses, Known, Depth + 1, Q, TLI);
@@ -4760,16 +4785,8 @@ void computeKnownFPClass(const Value *V, const APInt &DemandedElts,
break;
}
case Instruction::FPTrunc: {
- if ((InterestedClasses & fcNan) == fcNone)
- break;
-
- KnownFPClass KnownSrc;
- computeKnownFPClass(Op->getOperand(0), DemandedElts,
- InterestedClasses, KnownSrc, Depth + 1, Q, TLI);
- if (KnownSrc.isKnownNeverNaN())
- Known.knownNot(fcNan);
-
- // Infinity needs a range check.
+ computeKnownFPClassForFPTrunc(Op, DemandedElts, InterestedClasses, Known,
+ Depth, Q, TLI);
break;
}
case Instruction::SIToFP:
diff --git a/llvm/test/Transforms/Attributor/nofpclass-fptrunc.ll b/llvm/test/Transforms/Attributor/nofpclass-fptrunc.ll
index a5a4b004737d3..9274114611a84 100644
--- a/llvm/test/Transforms/Attributor/nofpclass-fptrunc.ll
+++ b/llvm/test/Transforms/Attributor/nofpclass-fptrunc.ll
@@ -1,9 +1,11 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -S < %s | FileCheck %s --check-prefixes=CHECK,TUNIT
+declare float @llvm.fptrunc.round.f32.f64(double, metadata)
+
define float @ret_fptrunc(double %arg0) {
; CHECK-LABEL: define float @ret_fptrunc
-; CHECK-SAME: (double [[ARG0:%.*]]) #[[ATTR0:[0-9]+]] {
+; CHECK-SAME: (double [[ARG0:%.*]]) #[[ATTR1:[0-9]+]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -13,7 +15,7 @@ define float @ret_fptrunc(double %arg0) {
define float @ret_fptrunc_nonan(double nofpclass(nan) %arg0) {
; CHECK-LABEL: define nofpclass(nan) float @ret_fptrunc_nonan
-; CHECK-SAME: (double nofpclass(nan) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(nan) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -23,7 +25,7 @@ define float @ret_fptrunc_nonan(double nofpclass(nan) %arg0) {
define float @ret_fptrunc_noqnan(double nofpclass(qnan) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_noqnan
-; CHECK-SAME: (double nofpclass(qnan) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(qnan) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -33,7 +35,7 @@ define float @ret_fptrunc_noqnan(double nofpclass(qnan) %arg0) {
define float @ret_fptrunc_nosnan(double nofpclass(snan) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_nosnan
-; CHECK-SAME: (double nofpclass(snan) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(snan) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -43,7 +45,7 @@ define float @ret_fptrunc_nosnan(double nofpclass(snan) %arg0) {
define float @ret_fptrunc_noinf(double nofpclass(inf) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_noinf
-; CHECK-SAME: (double nofpclass(inf) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(inf) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -53,7 +55,7 @@ define float @ret_fptrunc_noinf(double nofpclass(inf) %arg0) {
define float @ret_fptrunc_nopinf(double nofpclass(pinf) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_nopinf
-; CHECK-SAME: (double nofpclass(pinf) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(pinf) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -63,7 +65,7 @@ define float @ret_fptrunc_nopinf(double nofpclass(pinf) %arg0) {
define float @ret_fptrunc_noninf(double nofpclass(ninf) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_noninf
-; CHECK-SAME: (double nofpclass(ninf) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(ninf) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -73,7 +75,7 @@ define float @ret_fptrunc_noninf(double nofpclass(ninf) %arg0) {
define float @ret_fptrunc_nozero(double nofpclass(zero) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_nozero
-; CHECK-SAME: (double nofpclass(zero) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(zero) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -83,7 +85,7 @@ define float @ret_fptrunc_nozero(double nofpclass(zero) %arg0) {
define float @ret_fptrunc_nopzero(double nofpclass(pzero) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_nopzero
-; CHECK-SAME: (double nofpclass(pzero) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(pzero) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -93,7 +95,7 @@ define float @ret_fptrunc_nopzero(double nofpclass(pzero) %arg0) {
define float @ret_fptrunc_nonzero(double nofpclass(nzero) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_nonzero
-; CHECK-SAME: (double nofpclass(nzero) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(nzero) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -103,7 +105,7 @@ define float @ret_fptrunc_nonzero(double nofpclass(nzero) %arg0) {
define float @ret_fptrunc_nonan_noinf(double nofpclass(nan inf) %arg0) {
; CHECK-LABEL: define nofpclass(nan) float @ret_fptrunc_nonan_noinf
-; CHECK-SAME: (double nofpclass(nan inf) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(nan inf) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -113,7 +115,7 @@ define float @ret_fptrunc_nonan_noinf(double nofpclass(nan inf) %arg0) {
define float @ret_fptrunc_nosub(double nofpclass(sub) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_nosub
-; CHECK-SAME: (double nofpclass(sub) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(sub) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -123,7 +125,7 @@ define float @ret_fptrunc_nosub(double nofpclass(sub) %arg0) {
define float @ret_fptrunc_nonorm(double nofpclass(norm) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_nonorm
-; CHECK-SAME: (double nofpclass(norm) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(norm) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -133,7 +135,7 @@ define float @ret_fptrunc_nonorm(double nofpclass(norm) %arg0) {
define float @ret_fptrunc_posonly(double nofpclass(ninf nnorm nsub nzero) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_posonly
-; CHECK-SAME: (double nofpclass(ninf nzero nsub nnorm) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(ninf nzero nsub nnorm) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -143,7 +145,7 @@ define float @ret_fptrunc_posonly(double nofpclass(ninf nnorm nsub nzero) %arg0)
define float @ret_fptrunc_posonly_zero(double nofpclass(ninf nnorm nsub) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_posonly_zero
-; CHECK-SAME: (double nofpclass(ninf nsub nnorm) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(ninf nsub nnorm) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -153,7 +155,7 @@ define float @ret_fptrunc_posonly_zero(double nofpclass(ninf nnorm nsub) %arg0)
define float @ret_fptrunc_posonly_zero_nan(double nofpclass(ninf nnorm nsub nan) %arg0) {
; CHECK-LABEL: define nofpclass(nan) float @ret_fptrunc_posonly_zero_nan
-; CHECK-SAME: (double nofpclass(nan ninf nsub nnorm) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(nan ninf nsub nnorm) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -163,7 +165,7 @@ define float @ret_fptrunc_posonly_zero_nan(double nofpclass(ninf nnorm nsub nan)
define float @ret_fptrunc_posonly_nan(double nofpclass(ninf nnorm nsub nzero nan) %arg0) {
; CHECK-LABEL: define nofpclass(nan) float @ret_fptrunc_posonly_nan
-; CHECK-SAME: (double nofpclass(nan ninf nzero nsub nnorm) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(nan ninf nzero nsub nnorm) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -173,7 +175,7 @@ define float @ret_fptrunc_posonly_nan(double nofpclass(ninf nnorm nsub nzero nan
define float @ret_fptrunc_negonly(double nofpclass(pinf pnorm psub pzero) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_negonly
-; CHECK-SAME: (double nofpclass(pinf pzero psub pnorm) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(pinf pzero psub pnorm) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -183,7 +185,7 @@ define float @ret_fptrunc_negonly(double nofpclass(pinf pnorm psub pzero) %arg0)
define float @ret_fptrunc_negonly_zero(double nofpclass(pinf pnorm psub) %arg0) {
; CHECK-LABEL: define float @ret_fptrunc_negonly_zero
-; CHECK-SAME: (double nofpclass(pinf psub pnorm) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(pinf psub pnorm) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -193,7 +195,7 @@ define float @ret_fptrunc_negonly_zero(double nofpclass(pinf pnorm psub) %arg0)
define float @ret_fptrunc_negonly_zero_nan(double nofpclass(pinf pnorm psub nan) %arg0) {
; CHECK-LABEL: define nofpclass(nan) float @ret_fptrunc_negonly_zero_nan
-; CHECK-SAME: (double nofpclass(nan pinf psub pnorm) [[ARG0:%.*]]) #[[ATTR0]] {
+; CHECK-SAME: (double nofpclass(nan pinf psub pnorm) [[ARG0:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: [[EXT:%.*]] = fptrunc double [[ARG0]] to float
; CHECK-NEXT: ret float [[EXT]]
;
@@ -201,5 +203,135 @@ define float @ret_fptrunc_negonly_zero_nan(double nofpclass(pinf pnorm psub nan)
ret float %ext
}
+define float @ret_fptrunc_round(double %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round
+; CHECK-SAME: (double [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2:[0-9]+]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_nonan(double nofpclass(nan) %arg0) {
+; CHECK-LABEL: define nofpclass(nan) float @ret_fptrunc_round_nonan
+; CHECK-SAME: (double nofpclass(nan) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call nofpclass(nan) float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_noqnan(double nofpclass(qnan) %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round_noqnan
+; CHECK-SAME: (double nofpclass(qnan) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_nosnan(double nofpclass(snan) %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round_nosnan
+; CHECK-SAME: (double nofpclass(snan) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_noinf(double nofpclass(inf) %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round_noinf
+; CHECK-SAME: (double nofpclass(inf) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_nopinf(double nofpclass(pinf) %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round_nopinf
+; CHECK-SAME: (double nofpclass(pinf) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_noninf(double nofpclass(ninf) %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round_noninf
+; CHECK-SAME: (double nofpclass(ninf) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_nozero(double nofpclass(zero) %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round_nozero
+; CHECK-SAME: (double nofpclass(zero) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_nopzero(double nofpclass(pzero) %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round_nopzero
+; CHECK-SAME: (double nofpclass(pzero) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_nonzero(double nofpclass(nzero) %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round_nonzero
+; CHECK-SAME: (double nofpclass(nzero) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_nonan_noinf(double nofpclass(nan inf) %arg0) {
+; CHECK-LABEL: define nofpclass(nan) float @ret_fptrunc_round_nonan_noinf
+; CHECK-SAME: (double nofpclass(nan inf) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call nofpclass(nan) float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_nosub(double nofpclass(sub) %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round_nosub
+; CHECK-SAME: (double nofpclass(sub) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
+define float @ret_fptrunc_round_nonorm(double nofpclass(norm) %arg0) {
+; CHECK-LABEL: define float @ret_fptrunc_round_nonorm
+; CHECK-SAME: (double nofpclass(norm) [[ARG0:%.*]]) #[[ATTR1]] {
+; CHECK-NEXT: [[EXT:%.*]] = call float @llvm.fptrunc.round.f32.f64(double [[ARG0]], metadata !"round.downward") #[[ATTR2]]
+; CHECK-NEXT: ret float [[EXT]]
+;
+ %ext = call float @llvm.fptrunc.round.f32.f64(double %arg0, metadata !"round.downward")
+ ret float %ext
+}
+
;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; TUNIT: {{.*}}
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