[llvm] [KnownFPClass] Fix KnownFPClass::frexp subnormal mode handling (PR #219114)
Eric Ross via llvm-commits
llvm-commits at lists.llvm.org
Tue Sep 29 20:06:42 PDT 2026
https://github.com/ZERICO2005 updated https://github.com/llvm/llvm-project/pull/219114
>From 6e40fdb0114d27b4ab078294729c35d03f01cd46 Mon Sep 17 00:00:00 2001
From: zerico <zerico2005 at gmail.com>
Date: Wed, 26 Aug 2026 22:30:28 -0600
Subject: [PATCH] [KnownFPClass] Fix KnownFPClass::frexp subnormal mode
handling
---
llvm/lib/Analysis/ValueTracking.cpp | 19 ++-
.../CodeGen/GlobalISel/GISelValueTracking.cpp | 19 ++-
llvm/lib/Support/KnownFPClass.cpp | 38 +++--
.../InstCombineSimplifyDemanded.cpp | 23 ++-
.../AArch64/GlobalISel/knownfpclass-ops.mir | 17 ++
.../Transforms/Attributor/nofpclass-frexp.ll | 155 +++++++++++++-----
.../simplify-demanded-fpclass-frexp.ll | 92 ++++++++---
7 files changed, 276 insertions(+), 87 deletions(-)
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index 650d07364bee1..54ad726773b32 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -6335,11 +6335,26 @@ void computeKnownFPClass(const Value *V, const APInt &DemandedElts,
if (const auto *II = dyn_cast<IntrinsicInst>(Src)) {
switch (II->getIntrinsicID()) {
case Intrinsic::frexp: {
- Known.knownNot(fcSubnormal);
+ FPClassTest InterestedSrcs = InterestedClasses;
+
+ // Positive subnormals and negative subnormals could become positive
+ // zero.
+ if (InterestedClasses & fcPosZero)
+ InterestedSrcs |= fcSubnormal;
+
+ // Negative subnormals could become negative zero.
+ if (InterestedClasses & fcNegZero)
+ InterestedSrcs |= fcNegSubnormal;
+
+ if (InterestedClasses & fcPosNormal)
+ InterestedSrcs |= fcPosSubnormal;
+
+ if (InterestedClasses & fcNegNormal)
+ InterestedSrcs |= fcNegSubnormal;
KnownFPClass KnownSrc;
computeKnownFPClass(II->getArgOperand(0), DemandedElts,
- InterestedClasses, KnownSrc, Q, Depth + 1);
+ InterestedSrcs, KnownSrc, Q, Depth + 1);
const Function *F = cast<Instruction>(Op)->getFunction();
const fltSemantics &FltSem =
diff --git a/llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp b/llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp
index 71b68e223959e..23fb3370a26dc 100644
--- a/llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp
@@ -2013,9 +2013,24 @@ void GISelValueTracking::computeKnownFPClass(Register R,
if (R != MI.getOperand(0).getReg())
break;
Register Src = MI.getOperand(2).getReg();
+ FPClassTest InterestedSrcs = InterestedClasses;
+
+ // Positive subnormals and negative subnormals could become positive zero.
+ if (InterestedClasses & fcPosZero)
+ InterestedSrcs |= fcSubnormal;
+
+ // Negative subnormals could become negative zero.
+ if (InterestedClasses & fcNegZero)
+ InterestedSrcs |= fcNegSubnormal;
+
+ if (InterestedClasses & fcPosNormal)
+ InterestedSrcs |= fcPosSubnormal;
+
+ if (InterestedClasses & fcNegNormal)
+ InterestedSrcs |= fcNegSubnormal;
+
KnownFPClass KnownSrc;
- computeKnownFPClass(Src, DemandedElts, InterestedClasses, KnownSrc,
- Depth + 1);
+ computeKnownFPClass(Src, DemandedElts, InterestedSrcs, KnownSrc, Depth + 1);
DenormalMode Mode =
MF->getDenormalMode(getFltSemanticForLLT(DstTy.getScalarType()));
Known = KnownFPClass::frexp_mant(KnownSrc, Mode);
diff --git a/llvm/lib/Support/KnownFPClass.cpp b/llvm/lib/Support/KnownFPClass.cpp
index 1451a407983ff..2b4585191b73d 100644
--- a/llvm/lib/Support/KnownFPClass.cpp
+++ b/llvm/lib/Support/KnownFPClass.cpp
@@ -944,27 +944,31 @@ KnownFPClass KnownFPClass::roundToIntegral(const KnownFPClass &KnownSrc,
KnownFPClass KnownFPClass::frexp_mant(const KnownFPClass &KnownSrc,
DenormalMode Mode) {
KnownFPClass Known;
+
Known.knownNot(fcSubnormal);
- if (KnownSrc.isKnownNever(fcNegative))
- Known.knownNot(fcNegative);
- else {
- if (KnownSrc.isKnownNeverLogicalNegZero(Mode))
- Known.knownNot(fcNegZero);
- if (KnownSrc.isKnownNever(fcNegInf))
- Known.knownNot(fcNegInf);
- }
+ Known.propagateNonNaN(KnownSrc);
- if (KnownSrc.isKnownNever(fcPositive))
- Known.knownNot(fcPositive);
- else {
- if (KnownSrc.isKnownNeverLogicalPosZero(Mode))
- Known.knownNot(fcPosZero);
- if (KnownSrc.isKnownNever(fcPosInf))
- Known.knownNot(fcPosInf);
- }
+ if (KnownSrc.isKnownNeverPosInfinity())
+ Known.knownNot(fcPosInf);
+
+ if (KnownSrc.isKnownNeverNegInfinity())
+ Known.knownNot(fcNegInf);
+
+ if (KnownSrc.isKnownNeverLogicalPosZero(Mode))
+ Known.knownNot(fcPosZero);
+
+ if (KnownSrc.isKnownNeverLogicalNegZero(Mode))
+ Known.knownNot(fcNegZero);
+
+ // TODO: These deductions can be improved if subnormal inputs are guaranteed
+ // to be flushed to zero.
+ if (KnownSrc.isKnownNever(fcPosNormal | fcPosSubnormal))
+ Known.knownNot(fcPosNormal);
+
+ if (KnownSrc.isKnownNever(fcNegNormal | fcNegSubnormal))
+ Known.knownNot(fcNegNormal);
- Known.propagateNonNaN(KnownSrc);
return Known;
}
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
index bcd30323ce9a3..be079bd8768bc 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
@@ -3530,12 +3530,24 @@ Value *InstCombinerImpl::SimplifyDemandedUseFPClass(Instruction *I,
switch (IID) {
case Intrinsic::frexp: {
FPClassTest SrcDemandedMask = fcNone;
+
if (DemandedMask & fcNan)
SrcDemandedMask |= fcNan;
- if (DemandedMask & fcNegFinite)
- SrcDemandedMask |= fcNegFinite;
- if (DemandedMask & fcPosFinite)
- SrcDemandedMask |= fcPosFinite;
+
+ // Positive subnormals and negative subnormals could become positive
+ // zero.
+ if (DemandedMask & fcPosZero)
+ SrcDemandedMask |= fcPosZero | fcSubnormal;
+
+ // Negative subnormals could become negative zero.
+ if (DemandedMask & fcNegZero)
+ SrcDemandedMask |= fcNegZero | fcNegSubnormal;
+
+ if (DemandedMask & (fcNegNormal | fcNegSubnormal))
+ SrcDemandedMask |= fcNegNormal | fcNegSubnormal;
+ if (DemandedMask & (fcPosNormal | fcPosSubnormal))
+ SrcDemandedMask |= fcPosNormal | fcPosSubnormal;
+
if (DemandedMask & fcPosInf)
SrcDemandedMask |= fcPosInf;
if (DemandedMask & fcNegInf)
@@ -3557,7 +3569,8 @@ Value *InstCombinerImpl::SimplifyDemandedUseFPClass(Instruction *I,
/*IsCanonicalizing=*/true))
return SingleVal;
- if (Known.isKnownAlways(fcInf | fcNan))
+ // frexp returns zero, infinity, and NaN inputs unchanged.
+ if (KnownSrc.isKnownAlways(fcZero | fcInf | fcNan))
return II->getArgOperand(0);
return nullptr;
diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/knownfpclass-ops.mir b/llvm/test/CodeGen/AArch64/GlobalISel/knownfpclass-ops.mir
index 0e301d0a4b974..7589b258d58a4 100644
--- a/llvm/test/CodeGen/AArch64/GlobalISel/knownfpclass-ops.mir
+++ b/llvm/test/CodeGen/AArch64/GlobalISel/knownfpclass-ops.mir
@@ -666,6 +666,23 @@ body: |
%copy:_(s32) = COPY %fldexp
...
---
+name: FFrexp
+body: |
+ bb.0:
+ ; CHECK-LABEL: name: @FFrexp
+ ; CHECK-NEXT: %ptr:_ FPClasses:(all) SignBitKnown:?
+ ; CHECK-NEXT: %val:_ FPClasses:(all) SignBitKnown:?
+ ; CHECK-NEXT: %fabs:_ FPClasses:(pzero psub pnorm) SignBitKnown:0
+ ; CHECK-NEXT: %frexp_mant:_ FPClasses:(pzero pnorm) SignBitKnown:0
+ ; CHECK-NEXT: %frexp_exp:_ FPClasses:(all) SignBitKnown:?
+ ; CHECK-NEXT: %copy:_ FPClasses:(pzero pnorm) SignBitKnown:0
+ %ptr:_(p0) = G_IMPLICIT_DEF
+ %val:_(s32) = G_LOAD %ptr(p0) :: (load (s32))
+ %fabs:_(s32) = nnan ninf G_FABS %val
+ %frexp_mant:_(s32), %frexp_exp:_(s32) = G_FFREXP %fabs
+ %copy:_(s32) = COPY %frexp_mant
+...
+---
name: FPowPos
body: |
bb.0:
diff --git a/llvm/test/Transforms/Attributor/nofpclass-frexp.ll b/llvm/test/Transforms/Attributor/nofpclass-frexp.ll
index 085647bb2b6f0..c5a990e9e9252 100644
--- a/llvm/test/Transforms/Attributor/nofpclass-frexp.ll
+++ b/llvm/test/Transforms/Attributor/nofpclass-frexp.ll
@@ -8,7 +8,7 @@ declare { <4 x float>, <4 x i32> } @llvm.frexp.v4f32.v4i32(<4 x float>)
define { float, i32 } @ret_frexp_f32(float %arg0) {
; CHECK-LABEL: define { float, i32 } @ret_frexp_f32
; CHECK-SAME: (float [[ARG0:%.*]]) #[[ATTR1:[0-9]+]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float [[ARG0]]) #[[ATTR7:[0-9]+]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float [[ARG0]]) #[[ATTR8:[0-9]+]]
; CHECK-NEXT: ret { float, i32 } [[CALL]]
;
%call = call { float, i32 } @llvm.frexp.f32.i32(float %arg0)
@@ -18,7 +18,7 @@ define { float, i32 } @ret_frexp_f32(float %arg0) {
define { float, i32 } @ret_frexp_f32_nonan(float nofpclass(nan) %arg0) {
; CHECK-LABEL: define { float, i32 } @ret_frexp_f32_nonan
; CHECK-SAME: (float nofpclass(nan) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: ret { float, i32 } [[CALL]]
;
%call = call { float, i32 } @llvm.frexp.f32.i32(float %arg0)
@@ -28,7 +28,7 @@ define { float, i32 } @ret_frexp_f32_nonan(float nofpclass(nan) %arg0) {
define float @ret_frexp_f32_0_nonan(float nofpclass(nan) %arg0) {
; CHECK-LABEL: define nofpclass(nan sub) float @ret_frexp_f32_0_nonan
; CHECK-SAME: (float nofpclass(nan) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -40,7 +40,7 @@ define float @ret_frexp_f32_0_nonan(float nofpclass(nan) %arg0) {
define float @ret_frexp_f32_0_nosnan(float nofpclass(snan) %arg0) {
; CHECK-LABEL: define nofpclass(snan sub) float @ret_frexp_f32_0_nosnan
; CHECK-SAME: (float nofpclass(snan) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(snan) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(snan) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -52,7 +52,7 @@ define float @ret_frexp_f32_0_nosnan(float nofpclass(snan) %arg0) {
define float @ret_frexp_f32_0_noqnan(float nofpclass(qnan) %arg0) {
; CHECK-LABEL: define nofpclass(sub) float @ret_frexp_f32_0_noqnan
; CHECK-SAME: (float nofpclass(qnan) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(qnan) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(qnan) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -64,7 +64,7 @@ define float @ret_frexp_f32_0_noqnan(float nofpclass(qnan) %arg0) {
define i32 @ret_frexp_f32_1_nonan(float nofpclass(nan) %arg0) {
; CHECK-LABEL: define i32 @ret_frexp_f32_1_nonan
; CHECK-SAME: (float nofpclass(nan) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_1:%.*]] = extractvalue { float, i32 } [[CALL]], 1
; CHECK-NEXT: ret i32 [[CALL_1]]
;
@@ -76,7 +76,7 @@ define i32 @ret_frexp_f32_1_nonan(float nofpclass(nan) %arg0) {
define <2 x float> @ret_frexp_v2f32_0_nonan(<2 x float> nofpclass(nan) %arg0) {
; CHECK-LABEL: define nofpclass(nan sub) <2 x float> @ret_frexp_v2f32_0_nonan
; CHECK-SAME: (<2 x float> nofpclass(nan) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { <2 x float>, <2 x i32> } @llvm.frexp.v2f32.v2i32(<2 x float> nofpclass(nan) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { <2 x float>, <2 x i32> } @llvm.frexp.v2f32.v2i32(<2 x float> nofpclass(nan) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { <2 x float>, <2 x i32> } [[CALL]], 0
; CHECK-NEXT: ret <2 x float> [[CALL_0]]
;
@@ -88,7 +88,7 @@ define <2 x float> @ret_frexp_v2f32_0_nonan(<2 x float> nofpclass(nan) %arg0) {
define <2 x i32> @ret_frexp_v2f32_1_nonan(<2 x float> nofpclass(nan) %arg0) {
; CHECK-LABEL: define <2 x i32> @ret_frexp_v2f32_1_nonan
; CHECK-SAME: (<2 x float> nofpclass(nan) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { <2 x float>, <2 x i32> } @llvm.frexp.v2f32.v2i32(<2 x float> nofpclass(nan) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { <2 x float>, <2 x i32> } @llvm.frexp.v2f32.v2i32(<2 x float> nofpclass(nan) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { <2 x float>, <2 x i32> } [[CALL]], 1
; CHECK-NEXT: ret <2 x i32> [[CALL_0]]
;
@@ -100,7 +100,7 @@ define <2 x i32> @ret_frexp_v2f32_1_nonan(<2 x float> nofpclass(nan) %arg0) {
define float @ret_frexp_v4f32_0_nonan_elt1(<4 x float> nofpclass(nan) %arg0) {
; CHECK-LABEL: define nofpclass(nan sub) float @ret_frexp_v4f32_0_nonan_elt1
; CHECK-SAME: (<4 x float> nofpclass(nan) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { <4 x float>, <4 x i32> } @llvm.frexp.v4f32.v4i32(<4 x float> nofpclass(nan) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { <4 x float>, <4 x i32> } @llvm.frexp.v4f32.v4i32(<4 x float> nofpclass(nan) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { <4 x float>, <4 x i32> } [[CALL]], 0
; CHECK-NEXT: [[ELT_2:%.*]] = extractelement <4 x float> [[CALL_0]], i32 2
; CHECK-NEXT: ret float [[ELT_2]]
@@ -114,7 +114,7 @@ define float @ret_frexp_v4f32_0_nonan_elt1(<4 x float> nofpclass(nan) %arg0) {
define float @ret_frexp_f32_0_nopos_nopzero(float nofpclass(pinf psub pnorm pzero) %arg0) {
; CHECK-LABEL: define nofpclass(pinf pzero sub pnorm) float @ret_frexp_f32_0_nopos_nopzero
; CHECK-SAME: (float nofpclass(pinf pzero psub pnorm) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pinf pzero psub pnorm) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pinf pzero psub pnorm) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -126,7 +126,7 @@ define float @ret_frexp_f32_0_nopos_nopzero(float nofpclass(pinf psub pnorm pzer
define float @ret_frexp_f32_0_nopos_nopzero_nonan(float nofpclass(pinf psub pnorm pzero nan) %arg0) {
; CHECK-LABEL: define nofpclass(nan pinf pzero sub pnorm) float @ret_frexp_f32_0_nopos_nopzero_nonan
; CHECK-SAME: (float nofpclass(nan pinf pzero psub pnorm) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan pinf pzero psub pnorm) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan pinf pzero psub pnorm) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -136,9 +136,9 @@ define float @ret_frexp_f32_0_nopos_nopzero_nonan(float nofpclass(pinf psub pnor
}
define float @ret_frexp_f32_0_nopos(float nofpclass(pinf psub pnorm) %arg0) {
-; CHECK-LABEL: define nofpclass(pinf sub) float @ret_frexp_f32_0_nopos
+; CHECK-LABEL: define nofpclass(pinf sub pnorm) float @ret_frexp_f32_0_nopos
; CHECK-SAME: (float nofpclass(pinf psub pnorm) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pinf psub pnorm) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pinf psub pnorm) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -148,9 +148,9 @@ define float @ret_frexp_f32_0_nopos(float nofpclass(pinf psub pnorm) %arg0) {
}
define float @ret_frexp_f32_0_nopos_nonan(float nofpclass(pinf psub pnorm nan) %arg0) {
-; CHECK-LABEL: define nofpclass(nan pinf sub) float @ret_frexp_f32_0_nopos_nonan
+; CHECK-LABEL: define nofpclass(nan pinf sub pnorm) float @ret_frexp_f32_0_nopos_nonan
; CHECK-SAME: (float nofpclass(nan pinf psub pnorm) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan pinf psub pnorm) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan pinf psub pnorm) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -162,7 +162,7 @@ define float @ret_frexp_f32_0_nopos_nonan(float nofpclass(pinf psub pnorm nan) %
define float @ret_frexp_f32_0_nopos_nozero(float nofpclass(pinf psub pnorm zero) %arg0) {
; CHECK-LABEL: define nofpclass(pinf zero sub pnorm) float @ret_frexp_f32_0_nopos_nozero
; CHECK-SAME: (float nofpclass(pinf zero psub pnorm) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pinf zero psub pnorm) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pinf zero psub pnorm) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -174,7 +174,7 @@ define float @ret_frexp_f32_0_nopos_nozero(float nofpclass(pinf psub pnorm zero)
define float @ret_frexp_f32_0_noneg_nonzero(float nofpclass(ninf nsub nnorm nzero) %arg0) {
; CHECK-LABEL: define nofpclass(ninf nzero sub nnorm) float @ret_frexp_f32_0_noneg_nonzero
; CHECK-SAME: (float nofpclass(ninf nzero nsub nnorm) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(ninf nzero nsub nnorm) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(ninf nzero nsub nnorm) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -186,7 +186,7 @@ define float @ret_frexp_f32_0_noneg_nonzero(float nofpclass(ninf nsub nnorm nzer
define float @ret_frexp_f32_0_noneg_nonzero_nonan(float nofpclass(ninf nsub nnorm nzero nan) %arg0) {
; CHECK-LABEL: define nofpclass(nan ninf nzero sub nnorm) float @ret_frexp_f32_0_noneg_nonzero_nonan
; CHECK-SAME: (float nofpclass(nan ninf nzero nsub nnorm) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan ninf nzero nsub nnorm) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan ninf nzero nsub nnorm) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -196,9 +196,9 @@ define float @ret_frexp_f32_0_noneg_nonzero_nonan(float nofpclass(ninf nsub nnor
}
define float @ret_frexp_f32_0_noneg(float nofpclass(ninf nsub nnorm) %arg0) {
-; CHECK-LABEL: define nofpclass(ninf sub) float @ret_frexp_f32_0_noneg
+; CHECK-LABEL: define nofpclass(ninf sub nnorm) float @ret_frexp_f32_0_noneg
; CHECK-SAME: (float nofpclass(ninf nsub nnorm) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(ninf nsub nnorm) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(ninf nsub nnorm) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -208,9 +208,9 @@ define float @ret_frexp_f32_0_noneg(float nofpclass(ninf nsub nnorm) %arg0) {
}
define float @ret_frexp_f32_0_noneg_nonan(float nofpclass(ninf nsub nnorm nan) %arg0) {
-; CHECK-LABEL: define nofpclass(nan ninf sub) float @ret_frexp_f32_0_noneg_nonan
+; CHECK-LABEL: define nofpclass(nan ninf sub nnorm) float @ret_frexp_f32_0_noneg_nonan
; CHECK-SAME: (float nofpclass(nan ninf nsub nnorm) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan ninf nsub nnorm) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan ninf nsub nnorm) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -222,7 +222,7 @@ define float @ret_frexp_f32_0_noneg_nonan(float nofpclass(ninf nsub nnorm nan) %
define float @ret_frexp_f32_0_noneg_nozero(float nofpclass(ninf nsub nnorm nzero) %arg0) {
; CHECK-LABEL: define nofpclass(ninf nzero sub nnorm) float @ret_frexp_f32_0_noneg_nozero
; CHECK-SAME: (float nofpclass(ninf nzero nsub nnorm) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(ninf nzero nsub nnorm) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(ninf nzero nsub nnorm) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -234,7 +234,7 @@ define float @ret_frexp_f32_0_noneg_nozero(float nofpclass(ninf nsub nnorm nzero
define float @ret_frexp_f32_0_nopzero(float nofpclass(pzero) %arg0) {
; CHECK-LABEL: define nofpclass(pzero sub) float @ret_frexp_f32_0_nopzero
; CHECK-SAME: (float nofpclass(pzero) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -246,7 +246,7 @@ define float @ret_frexp_f32_0_nopzero(float nofpclass(pzero) %arg0) {
define float @ret_frexp_f32_0_nonzero(float nofpclass(nzero) %arg0) {
; CHECK-LABEL: define nofpclass(nzero sub) float @ret_frexp_f32_0_nonzero
; CHECK-SAME: (float nofpclass(nzero) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -258,7 +258,7 @@ define float @ret_frexp_f32_0_nonzero(float nofpclass(nzero) %arg0) {
define float @ret_frexp_f32_0_nozero(float nofpclass(zero) %arg0) {
; CHECK-LABEL: define nofpclass(zero sub) float @ret_frexp_f32_0_nozero
; CHECK-SAME: (float nofpclass(zero) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(zero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(zero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -270,7 +270,7 @@ define float @ret_frexp_f32_0_nozero(float nofpclass(zero) %arg0) {
define float @ret_frexp_f32_0_nopinf(float nofpclass(pinf) %arg0) {
; CHECK-LABEL: define nofpclass(pinf sub) float @ret_frexp_f32_0_nopinf
; CHECK-SAME: (float nofpclass(pinf) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pinf) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pinf) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -282,7 +282,7 @@ define float @ret_frexp_f32_0_nopinf(float nofpclass(pinf) %arg0) {
define float @ret_frexp_f32_0_noninf(float nofpclass(ninf) %arg0) {
; CHECK-LABEL: define nofpclass(ninf sub) float @ret_frexp_f32_0_noninf
; CHECK-SAME: (float nofpclass(ninf) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(ninf) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(ninf) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -294,7 +294,7 @@ define float @ret_frexp_f32_0_noninf(float nofpclass(ninf) %arg0) {
define float @ret_frexp_f32_0_noinf(float nofpclass(inf) %arg0) {
; CHECK-LABEL: define nofpclass(inf sub) float @ret_frexp_f32_0_noinf
; CHECK-SAME: (float nofpclass(inf) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(inf) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(inf) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -306,7 +306,7 @@ define float @ret_frexp_f32_0_noinf(float nofpclass(inf) %arg0) {
define float @ret_frexp_f32_0_nozero_nonan(float nofpclass(zero nan) %arg0) {
; CHECK-LABEL: define nofpclass(nan zero sub) float @ret_frexp_f32_0_nozero_nonan
; CHECK-SAME: (float nofpclass(nan zero) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan zero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan zero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -318,7 +318,7 @@ define float @ret_frexp_f32_0_nozero_nonan(float nofpclass(zero nan) %arg0) {
define float @ret_frexp_f32_0_nozero_noinf(float nofpclass(zero inf) %arg0) {
; CHECK-LABEL: define nofpclass(inf zero sub) float @ret_frexp_f32_0_nozero_noinf
; CHECK-SAME: (float nofpclass(inf zero) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(inf zero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(inf zero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -330,7 +330,7 @@ define float @ret_frexp_f32_0_nozero_noinf(float nofpclass(zero inf) %arg0) {
define float @ret_frexp_f32_0_nozero_nonan_noinf(float nofpclass(zero nan inf) %arg0) {
; CHECK-LABEL: define nofpclass(nan inf zero sub) float @ret_frexp_f32_0_nozero_nonan_noinf
; CHECK-SAME: (float nofpclass(nan inf zero) [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan inf zero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan inf zero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -342,7 +342,7 @@ define float @ret_frexp_f32_0_nozero_nonan_noinf(float nofpclass(zero nan inf) %
define float @ret_frexp_f32_0_nonzero_ftz_daz(float nofpclass(nzero) %arg0) #1 {
; CHECK-LABEL: define nofpclass(sub) float @ret_frexp_f32_0_nonzero_ftz_daz
; CHECK-SAME: (float nofpclass(nzero) [[ARG0:%.*]]) #[[ATTR2:[0-9]+]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -354,7 +354,7 @@ define float @ret_frexp_f32_0_nonzero_ftz_daz(float nofpclass(nzero) %arg0) #1 {
define float @ret_frexp_f32_0_nonzero_ftpz_dapz(float nofpclass(nzero) %arg0) #2 {
; CHECK-LABEL: define nofpclass(nzero sub) float @ret_frexp_f32_0_nonzero_ftpz_dapz
; CHECK-SAME: (float nofpclass(nzero) [[ARG0:%.*]]) #[[ATTR3:[0-9]+]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -366,7 +366,7 @@ define float @ret_frexp_f32_0_nonzero_ftpz_dapz(float nofpclass(nzero) %arg0) #2
define float @ret_frexp_f32_0_nonzero_dynamic_dynamic(float nofpclass(nzero) %arg0) #3 {
; CHECK-LABEL: define nofpclass(sub) float @ret_frexp_f32_0_nonzero_dynamic_dynamic
; CHECK-SAME: (float nofpclass(nzero) [[ARG0:%.*]]) #[[ATTR4:[0-9]+]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -378,7 +378,7 @@ define float @ret_frexp_f32_0_nonzero_dynamic_dynamic(float nofpclass(nzero) %ar
define float @ret_frexp_f32_0_nonzero_ieee_daz(float nofpclass(nzero) %arg0) #4 {
; CHECK-LABEL: define nofpclass(sub) float @ret_frexp_f32_0_nonzero_ieee_daz
; CHECK-SAME: (float nofpclass(nzero) [[ARG0:%.*]]) #[[ATTR5:[0-9]+]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -390,7 +390,7 @@ define float @ret_frexp_f32_0_nonzero_ieee_daz(float nofpclass(nzero) %arg0) #4
define float @ret_frexp_f32_0_nonzero_daz_ieee(float nofpclass(nzero) %arg0) #5 {
; CHECK-LABEL: define nofpclass(nzero sub) float @ret_frexp_f32_0_nonzero_daz_ieee
; CHECK-SAME: (float nofpclass(nzero) [[ARG0:%.*]]) #[[ATTR6:[0-9]+]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -402,7 +402,7 @@ define float @ret_frexp_f32_0_nonzero_daz_ieee(float nofpclass(nzero) %arg0) #5
define float @ret_frexp_f32_0_nopzero_ftz_daz(float nofpclass(pzero) %arg0) #1 {
; CHECK-LABEL: define nofpclass(sub) float @ret_frexp_f32_0_nopzero_ftz_daz
; CHECK-SAME: (float nofpclass(pzero) [[ARG0:%.*]]) #[[ATTR2]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -414,7 +414,7 @@ define float @ret_frexp_f32_0_nopzero_ftz_daz(float nofpclass(pzero) %arg0) #1 {
define float @ret_frexp_f32_0_nopzero_ftpz_dapz(float nofpclass(pzero) %arg0) #2 {
; CHECK-LABEL: define nofpclass(sub) float @ret_frexp_f32_0_nopzero_ftpz_dapz
; CHECK-SAME: (float nofpclass(pzero) [[ARG0:%.*]]) #[[ATTR3]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -426,7 +426,7 @@ define float @ret_frexp_f32_0_nopzero_ftpz_dapz(float nofpclass(pzero) %arg0) #2
define float @ret_frexp_f32_0_nopzero_dynamic_dynamic(float nofpclass(pzero) %arg0) #3 {
; CHECK-LABEL: define nofpclass(sub) float @ret_frexp_f32_0_nopzero_dynamic_dynamic
; CHECK-SAME: (float nofpclass(pzero) [[ARG0:%.*]]) #[[ATTR4]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -438,7 +438,7 @@ define float @ret_frexp_f32_0_nopzero_dynamic_dynamic(float nofpclass(pzero) %ar
define float @ret_frexp_f32_0_nopzero_ieee_daz(float nofpclass(pzero) %arg0) #4 {
; CHECK-LABEL: define nofpclass(sub) float @ret_frexp_f32_0_nopzero_ieee_daz
; CHECK-SAME: (float nofpclass(pzero) [[ARG0:%.*]]) #[[ATTR5]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -450,7 +450,7 @@ define float @ret_frexp_f32_0_nopzero_ieee_daz(float nofpclass(pzero) %arg0) #4
define float @ret_frexp_f32_0_nopzero_daz_ieee(float nofpclass(pzero) %arg0) #5 {
; CHECK-LABEL: define nofpclass(pzero sub) float @ret_frexp_f32_0_nopzero_daz_ieee
; CHECK-SAME: (float nofpclass(pzero) [[ARG0:%.*]]) #[[ATTR6]] {
-; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR7]]
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(pzero) [[ARG0]]) #[[ATTR8]]
; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
; CHECK-NEXT: ret float [[CALL_0]]
;
@@ -459,6 +459,77 @@ define float @ret_frexp_f32_0_nopzero_daz_ieee(float nofpclass(pzero) %arg0) #5
ret float %call.0
}
+define float @ret_frexp_negnormal_negsubnormal_mode_dynamic_dynamic(float nofpclass(nan inf zero psub pnorm) %arg0) #3 {
+; CHECK-LABEL: define nofpclass(nan inf sub pnorm) float @ret_frexp_negnormal_negsubnormal_mode_dynamic_dynamic
+; CHECK-SAME: (float nofpclass(nan inf zero psub pnorm) [[ARG0:%.*]]) #[[ATTR4]] {
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan inf zero psub pnorm) [[ARG0]]) #[[ATTR8]]
+; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
+; CHECK-NEXT: ret float [[CALL_0]]
+;
+ %call = call { float, i32 } @llvm.frexp.f32.i32(float %arg0)
+ %call.0 = extractvalue { float, i32 } %call, 0
+ ret float %call.0
+}
+
+define float @ret_frexp_negnormal_negsubnormal_mode_ftpz_dapz(float nofpclass(nan inf zero psub pnorm) %arg0) #2 {
+; CHECK-LABEL: define nofpclass(nan inf nzero sub pnorm) float @ret_frexp_negnormal_negsubnormal_mode_ftpz_dapz
+; CHECK-SAME: (float nofpclass(nan inf zero psub pnorm) [[ARG0:%.*]]) #[[ATTR3]] {
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan inf zero psub pnorm) [[ARG0]]) #[[ATTR8]]
+; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
+; CHECK-NEXT: ret float [[CALL_0]]
+;
+ %call = call { float, i32 } @llvm.frexp.f32.i32(float %arg0)
+ %call.0 = extractvalue { float, i32 } %call, 0
+ ret float %call.0
+}
+
+define float @ret_frexp_f32_0_only_subnormal_ieee(float nofpclass(nan inf zero norm) %arg0) #0 {
+; CHECK-LABEL: define nofpclass(nan inf zero sub) float @ret_frexp_f32_0_only_subnormal_ieee
+; CHECK-SAME: (float nofpclass(nan inf zero norm) [[ARG0:%.*]]) #[[ATTR7:[0-9]+]] {
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan inf zero norm) [[ARG0]]) #[[ATTR8]]
+; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
+; CHECK-NEXT: ret float [[CALL_0]]
+;
+ %call = call { float, i32 } @llvm.frexp.f32.i32(float %arg0)
+ %call.0 = extractvalue { float, i32 } %call, 0
+ ret float %call.0
+}
+
+define float @ret_frexp_f32_0_only_subnormal_preservesign(float nofpclass(nan inf zero norm) %arg0) #1 {
+; CHECK-LABEL: define nofpclass(nan inf sub) float @ret_frexp_f32_0_only_subnormal_preservesign
+; CHECK-SAME: (float nofpclass(nan inf zero norm) [[ARG0:%.*]]) #[[ATTR2]] {
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan inf zero norm) [[ARG0]]) #[[ATTR8]]
+; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
+; CHECK-NEXT: ret float [[CALL_0]]
+;
+ %call = call { float, i32 } @llvm.frexp.f32.i32(float %arg0)
+ %call.0 = extractvalue { float, i32 } %call, 0
+ ret float %call.0
+}
+
+define float @ret_frexp_f32_0_only_subnormal_positivezero(float nofpclass(nan inf zero norm) %arg0) #2 {
+; CHECK-LABEL: define nofpclass(nan inf nzero sub) float @ret_frexp_f32_0_only_subnormal_positivezero
+; CHECK-SAME: (float nofpclass(nan inf zero norm) [[ARG0:%.*]]) #[[ATTR3]] {
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan inf zero norm) [[ARG0]]) #[[ATTR8]]
+; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
+; CHECK-NEXT: ret float [[CALL_0]]
+;
+ %call = call { float, i32 } @llvm.frexp.f32.i32(float %arg0)
+ %call.0 = extractvalue { float, i32 } %call, 0
+ ret float %call.0
+}
+
+define float @ret_frexp_f32_0_only_subnormal_dynamic(float nofpclass(nan inf zero norm) %arg0) #3 {
+; CHECK-LABEL: define nofpclass(nan inf sub) float @ret_frexp_f32_0_only_subnormal_dynamic
+; CHECK-SAME: (float nofpclass(nan inf zero norm) [[ARG0:%.*]]) #[[ATTR4]] {
+; CHECK-NEXT: [[CALL:%.*]] = call { float, i32 } @llvm.frexp.f32.i32(float nofpclass(nan inf zero norm) [[ARG0]]) #[[ATTR8]]
+; CHECK-NEXT: [[CALL_0:%.*]] = extractvalue { float, i32 } [[CALL]], 0
+; CHECK-NEXT: ret float [[CALL_0]]
+;
+ %call = call { float, i32 } @llvm.frexp.f32.i32(float %arg0)
+ %call.0 = extractvalue { float, i32 } %call, 0
+ ret float %call.0
+}
attributes #0 = { denormal_fpenv(ieee|ieee) }
attributes #1 = { denormal_fpenv(preservesign) }
diff --git a/llvm/test/Transforms/InstCombine/simplify-demanded-fpclass-frexp.ll b/llvm/test/Transforms/InstCombine/simplify-demanded-fpclass-frexp.ll
index 51d0125565d3b..27b3fda885380 100644
--- a/llvm/test/Transforms/InstCombine/simplify-demanded-fpclass-frexp.ll
+++ b/llvm/test/Transforms/InstCombine/simplify-demanded-fpclass-frexp.ll
@@ -377,8 +377,7 @@ define nofpclass(zero) half @ret_nofpclass_zero__frexp_select_unknown_or_not_zer
; CHECK-LABEL: define nofpclass(zero) half @ret_nofpclass_zero__frexp_select_unknown_or_not_zero(
; CHECK-SAME: i1 [[COND:%.*]], half [[UNKNOWN:%.*]]) {
; CHECK-NEXT: [[ONLY_ZERO:%.*]] = call half @returns_zero()
-; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[COND]], half [[UNKNOWN]], half [[ONLY_ZERO]]
-; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[SELECT]])
+; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[UNKNOWN]])
; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
; CHECK-NEXT: ret half [[FREXP_MANT]]
;
@@ -445,11 +444,24 @@ define nofpclass(norm sub nzero) half @pzero_result_demands_psub_source(i1 %cond
ret half %frexp.mant
}
+define nofpclass(inf norm sub nzero) half @pzero_result_demands_nsub_source_positivezero(i1 %cond, half %unknown, half nofpclass(nan inf norm psub zero) %only.nsub) #1 {
+; CHECK-LABEL: define nofpclass(inf nzero sub norm) half @pzero_result_demands_nsub_source_positivezero(
+; CHECK-SAME: i1 [[COND:%.*]], half [[UNKNOWN:%.*]], half nofpclass(nan inf zero psub norm) [[ONLY_NSUB:%.*]]) #[[ATTR0:[0-9]+]] {
+; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[COND]], half [[UNKNOWN]], half [[ONLY_NSUB]]
+; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[SELECT]])
+; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
+; CHECK-NEXT: ret half [[FREXP_MANT]]
+;
+ %select = select i1 %cond, half %unknown, half %only.nsub
+ %frexp = call { half, i32 } @llvm.frexp.f16.i32(half %select)
+ %frexp.mant = extractvalue { half, i32 } %frexp, 0
+ ret half %frexp.mant
+}
+
define nofpclass(norm sub nzero) half @pzero_result_demands_pnorm_source(i1 %cond, half %unknown, half nofpclass(nan inf nnorm sub zero) %only.pnorm) {
; CHECK-LABEL: define nofpclass(nzero sub norm) half @pzero_result_demands_pnorm_source(
; CHECK-SAME: i1 [[COND:%.*]], half [[UNKNOWN:%.*]], half nofpclass(nan inf zero sub nnorm) [[ONLY_PNORM:%.*]]) {
-; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[COND]], half [[UNKNOWN]], half [[ONLY_PNORM]]
-; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[SELECT]])
+; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[UNKNOWN]])
; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
; CHECK-NEXT: ret half [[FREXP_MANT]]
;
@@ -476,8 +488,7 @@ define nofpclass(norm sub pzero) half @nzero_result_demands_nsub_source(i1 %cond
define nofpclass(norm sub pzero) half @nzero_result_demands_nnorm_source(i1 %cond, half %unknown, half nofpclass(nan inf pnorm sub zero) %only.nnorm) {
; CHECK-LABEL: define nofpclass(pzero sub norm) half @nzero_result_demands_nnorm_source(
; CHECK-SAME: i1 [[COND:%.*]], half [[UNKNOWN:%.*]], half nofpclass(nan inf zero sub pnorm) [[ONLY_NNORM:%.*]]) {
-; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[COND]], half [[UNKNOWN]], half [[ONLY_NNORM]]
-; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[SELECT]])
+; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[UNKNOWN]])
; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
; CHECK-NEXT: ret half [[FREXP_MANT]]
;
@@ -491,7 +502,8 @@ define nofpclass(ninf nnorm nsub nzero) half @ret_only_positive_or_nan__frexp_se
; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) half @ret_only_positive_or_nan__frexp_select_negative_or_unknown(
; CHECK-SAME: i1 [[COND:%.*]], half [[UNKNOWN:%.*]]) {
; CHECK-NEXT: [[NEGATIVE:%.*]] = call half @returns_negative()
-; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[UNKNOWN]])
+; CHECK-NEXT: [[SELECT:%.*]] = select i1 [[COND]], half [[UNKNOWN]], half [[NEGATIVE]]
+; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[SELECT]])
; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
; CHECK-NEXT: ret half [[FREXP_MANT]]
;
@@ -520,9 +532,7 @@ define nofpclass(pinf pnorm psub pzero) half @ret_only_negative_or_nan__frexp_se
define nofpclass(snan) half @src_only_inf__frexp() {
; CHECK-LABEL: define nofpclass(snan) half @src_only_inf__frexp() {
; CHECK-NEXT: [[ONLY_INF:%.*]] = call half @returns_inf()
-; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[ONLY_INF]])
-; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
-; CHECK-NEXT: ret half [[FREXP_MANT]]
+; CHECK-NEXT: ret half [[ONLY_INF]]
;
%only.inf = call half @returns_inf()
%frexp = call { half, i32 } @llvm.frexp.f16.i32(half %only.inf)
@@ -544,9 +554,7 @@ define nofpclass(snan) half @src_only_nan__frexp() {
define nofpclass(snan) half @src_only_nan_or_inf__frexp() {
; CHECK-LABEL: define nofpclass(snan) half @src_only_nan_or_inf__frexp() {
; CHECK-NEXT: [[INF_OR_NAN:%.*]] = call half @returns_inf_or_nan()
-; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[INF_OR_NAN]])
-; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
-; CHECK-NEXT: ret half [[FREXP_MANT]]
+; CHECK-NEXT: ret half [[INF_OR_NAN]]
;
%inf.or.nan = call half @returns_inf_or_nan()
%frexp = call { half, i32 } @llvm.frexp.f16.i32(half %inf.or.nan)
@@ -557,9 +565,7 @@ define nofpclass(snan) half @src_only_nan_or_inf__frexp() {
define nofpclass(snan) half @src_only_zero__frexp() {
; CHECK-LABEL: define nofpclass(snan) half @src_only_zero__frexp() {
; CHECK-NEXT: [[ONLY_ZERO:%.*]] = call half @returns_zero()
-; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[ONLY_ZERO]])
-; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
-; CHECK-NEXT: ret half [[FREXP_MANT]]
+; CHECK-NEXT: ret half [[ONLY_ZERO]]
;
%only.zero = call half @returns_zero()
%frexp = call { half, i32 } @llvm.frexp.f16.i32(half %only.zero)
@@ -570,9 +576,7 @@ define nofpclass(snan) half @src_only_zero__frexp() {
define nofpclass(nan) half @ret_no_nan_src_only_inf__frexp() {
; CHECK-LABEL: define nofpclass(nan) half @ret_no_nan_src_only_inf__frexp() {
; CHECK-NEXT: [[INF:%.*]] = call half @returns_inf()
-; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[INF]])
-; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
-; CHECK-NEXT: ret half [[FREXP_MANT]]
+; CHECK-NEXT: ret half [[INF]]
;
%inf = call half @returns_inf()
%frexp = call { half, i32 } @llvm.frexp.f16.i32(half %inf)
@@ -624,3 +628,53 @@ define nofpclass(snan) half @qnan_result_demands_snan_src(i1 %cond, half %unknow
%frexp.mant = extractvalue { half, i32 } %frexp, 0
ret half %frexp.mant
}
+
+define nofpclass(nan inf norm sub) half @ret_only_zero__frexp_preservesign(half %unknown) #0 {
+; CHECK-LABEL: define nofpclass(nan inf sub norm) half @ret_only_zero__frexp_preservesign(
+; CHECK-SAME: half [[UNKNOWN:%.*]]) #[[ATTR1:[0-9]+]] {
+; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[UNKNOWN]])
+; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
+; CHECK-NEXT: ret half [[FREXP_MANT]]
+;
+ %frexp = call { half, i32 } @llvm.frexp.f16.i32(half %unknown)
+ %frexp.mant = extractvalue { half, i32 } %frexp, 0
+ ret half %frexp.mant
+}
+
+define nofpclass(nan inf norm sub) half @ret_only_zero__frexp_positivezero(half %unknown) #1 {
+; CHECK-LABEL: define nofpclass(nan inf sub norm) half @ret_only_zero__frexp_positivezero(
+; CHECK-SAME: half [[UNKNOWN:%.*]]) #[[ATTR0]] {
+; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[UNKNOWN]])
+; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
+; CHECK-NEXT: ret half [[FREXP_MANT]]
+;
+ %frexp = call { half, i32 } @llvm.frexp.f16.i32(half %unknown)
+ %frexp.mant = extractvalue { half, i32 } %frexp, 0
+ ret half %frexp.mant
+}
+
+define nofpclass(nan inf norm sub) half @ret_only_zero__frexp_dynamic(half %unknown) #2 {
+; CHECK-LABEL: define nofpclass(nan inf sub norm) half @ret_only_zero__frexp_dynamic(
+; CHECK-SAME: half [[UNKNOWN:%.*]]) #[[ATTR2:[0-9]+]] {
+; CHECK-NEXT: [[FREXP:%.*]] = call { half, i32 } @llvm.frexp.f16.i32(half [[UNKNOWN]])
+; CHECK-NEXT: [[FREXP_MANT:%.*]] = extractvalue { half, i32 } [[FREXP]], 0
+; CHECK-NEXT: ret half [[FREXP_MANT]]
+;
+ %frexp = call { half, i32 } @llvm.frexp.f16.i32(half %unknown)
+ %frexp.mant = extractvalue { half, i32 } %frexp, 0
+ ret half %frexp.mant
+}
+
+define nofpclass(nan inf norm sub) half @ret_only_zero_no_sub__frexp_positivezero(half nofpclass(sub) %unknown) #1 {
+; CHECK-LABEL: define nofpclass(nan inf sub norm) half @ret_only_zero_no_sub__frexp_positivezero(
+; CHECK-SAME: half nofpclass(sub) [[UNKNOWN:%.*]]) #[[ATTR0]] {
+; CHECK-NEXT: ret half [[UNKNOWN]]
+;
+ %frexp = call { half, i32 } @llvm.frexp.f16.i32(half %unknown)
+ %frexp.mant = extractvalue { half, i32 } %frexp, 0
+ ret half %frexp.mant
+}
+
+attributes #0 = { denormal_fpenv(preservesign) }
+attributes #1 = { denormal_fpenv(positivezero) }
+attributes #2 = { denormal_fpenv(dynamic) }
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