From 82c65cc8f8568dfd86c094a7a599f616ba757f1d Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Mon, 17 Jul 2023 17:14:40 -0400
Subject: [PATCH] ValueTracking: Fix computeKnownFPClass for vector-with-scalar
 powi

Fixes regression reported after
0f4eb557e87912afa412b1b0299d10eb7443410b
---
 llvm/lib/Analysis/ValueTracking.cpp               |  8 +-
 llvm/test/Transforms/Attributor/nofpclass-powi.ll | 97 ++++++++++++++++++-----
 2 files changed, 80 insertions(+), 25 deletions(-)

diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index 209c992..e2fc09c 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -4647,10 +4647,12 @@ void computeKnownFPClass(const Value *V, const APInt &DemandedElts,
           break;
 
         const Value *Exp = II->getArgOperand(1);
-        unsigned BitWidth =
-            Exp->getType()->getScalarType()->getIntegerBitWidth();
+        Type *ExpTy = Exp->getType();
+        unsigned BitWidth = ExpTy->getScalarType()->getIntegerBitWidth();
         KnownBits ExponentKnownBits(BitWidth);
-        computeKnownBits(Exp, DemandedElts, ExponentKnownBits, Depth + 1, Q);
+        computeKnownBits(Exp,
+                         isa<VectorType>(ExpTy) ? DemandedElts : APInt(1, 1),
+                         ExponentKnownBits, Depth + 1, Q);
 
         if (ExponentKnownBits.Zero[0]) { // Is even
           Known.knownNot(fcNegative);
diff --git a/llvm/test/Transforms/Attributor/nofpclass-powi.ll b/llvm/test/Transforms/Attributor/nofpclass-powi.ll
index 29e6d99..e216bf7 100644
--- a/llvm/test/Transforms/Attributor/nofpclass-powi.ll
+++ b/llvm/test/Transforms/Attributor/nofpclass-powi.ll
@@ -5,11 +5,12 @@ declare float @llvm.powi.f32.i32(float, i32)
 declare float @llvm.powi.f32.i64(float, i64)
 
 declare <2 x float> @llvm.powi.v2f32.v2i32(<2 x float>, <2 x i32>)
+declare <4 x float> @llvm.powi.v4f32.i32(<4 x float>, i32)
 
 define float @ret_powi_f32(float %arg0, i32 %arg1) #0 {
 ; CHECK-LABEL: define float @ret_powi_f32
 ; CHECK-SAME: (float [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR1:[0-9]+]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5:[0-9]+]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6:[0-9]+]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -19,7 +20,7 @@ define float @ret_powi_f32(float %arg0, i32 %arg1) #0 {
 define float @ret_powi_f32_i64(float %arg0, i64 %arg1) #0 {
 ; CHECK-LABEL: define float @ret_powi_f32_i64
 ; CHECK-SAME: (float [[ARG0:%.*]], i64 [[ARG1:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i64(float [[ARG0]], i64 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i64(float [[ARG0]], i64 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i64(float %arg0, i64 %arg1)
@@ -29,7 +30,7 @@ define float @ret_powi_f32_i64(float %arg0, i64 %arg1) #0 {
 define <2 x float> @ret_powi_v2f32(<2 x float> %arg0, <2 x i32> %arg1) #0 {
 ; CHECK-LABEL: define <2 x float> @ret_powi_v2f32
 ; CHECK-SAME: (<2 x float> [[ARG0:%.*]], <2 x i32> [[ARG1:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> [[ARG0]], <2 x i32> [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> [[ARG0]], <2 x i32> [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret <2 x float> [[CALL]]
 ;
   %call = call <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> %arg0, <2 x i32> %arg1)
@@ -39,7 +40,7 @@ define <2 x float> @ret_powi_v2f32(<2 x float> %arg0, <2 x i32> %arg1) #0 {
 define float @ret_powi_f32_odd_constant(float %arg0) #0 {
 ; CHECK-LABEL: define float @ret_powi_f32_odd_constant
 ; CHECK-SAME: (float [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 noundef 3) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 noundef 3) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 3)
@@ -49,7 +50,7 @@ define float @ret_powi_f32_odd_constant(float %arg0) #0 {
 define float @ret_powi_f32_even_constant(float %arg0) #0 {
 ; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) float @ret_powi_f32_even_constant
 ; CHECK-SAME: (float [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 noundef 4) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 noundef 4) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 4)
@@ -59,7 +60,7 @@ define float @ret_powi_f32_even_constant(float %arg0) #0 {
 define <2 x float> @ret_powi_v2f32_even_nonsplat(<2 x float> %arg0) #0 {
 ; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) <2 x float> @ret_powi_v2f32_even_nonsplat
 ; CHECK-SAME: (<2 x float> [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> [[ARG0]], <2 x i32> noundef <i32 2, i32 4>) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> [[ARG0]], <2 x i32> noundef <i32 2, i32 4>) #[[ATTR6]]
 ; CHECK-NEXT:    ret <2 x float> [[CALL]]
 ;
   %call = call <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> %arg0, <2 x i32> <i32 2, i32 4>)
@@ -69,7 +70,7 @@ define <2 x float> @ret_powi_v2f32_even_nonsplat(<2 x float> %arg0) #0 {
 define <2 x float> @ret_powi_v2f32_odd_nonsplat(<2 x float> %arg0) #0 {
 ; CHECK-LABEL: define <2 x float> @ret_powi_v2f32_odd_nonsplat
 ; CHECK-SAME: (<2 x float> [[ARG0:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> [[ARG0]], <2 x i32> noundef <i32 3, i32 4>) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> [[ARG0]], <2 x i32> noundef <i32 3, i32 4>) #[[ATTR6]]
 ; CHECK-NEXT:    ret <2 x float> [[CALL]]
 ;
   %call = call <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> %arg0, <2 x i32> <i32 3, i32 4>)
@@ -80,7 +81,7 @@ define float @ret_powi_f32_masked_to_even(float %arg0, i32 %arg1) #0 {
 ; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) float @ret_powi_f32_masked_to_even
 ; CHECK-SAME: (float [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    [[KNOWN_EVEN:%.*]] = and i32 [[ARG1]], -2
-; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[KNOWN_EVEN]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[KNOWN_EVEN]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %known.even = and i32 %arg1, -2
@@ -92,7 +93,7 @@ define float @ret_powi_f32_masked_to_even_extrabits(float %arg0, i32 %arg1) #0 {
 ; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) float @ret_powi_f32_masked_to_even_extrabits
 ; CHECK-SAME: (float [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    [[KNOWN_EVEN:%.*]] = and i32 [[ARG1]], -4
-; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[KNOWN_EVEN]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[KNOWN_EVEN]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %known.even = and i32 %arg1, -4
@@ -104,7 +105,7 @@ define <2 x float> @ret_powi_v2f32_masked_to_even(<2 x float> %arg0, <2 x i32> %
 ; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) <2 x float> @ret_powi_v2f32_masked_to_even
 ; CHECK-SAME: (<2 x float> [[ARG0:%.*]], <2 x i32> [[ARG1:%.*]]) #[[ATTR1]] {
 ; CHECK-NEXT:    [[KNOWN_EVEN:%.*]] = and <2 x i32> [[ARG1]], <i32 -2, i32 -2>
-; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> [[ARG0]], <2 x i32> [[KNOWN_EVEN]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) <2 x float> @llvm.powi.v2f32.v2i32(<2 x float> [[ARG0]], <2 x i32> [[KNOWN_EVEN]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret <2 x float> [[CALL]]
 ;
   %known.even = and <2 x i32> %arg1, <i32 -2, i32 -2>
@@ -115,7 +116,7 @@ define <2 x float> @ret_powi_v2f32_masked_to_even(<2 x float> %arg0, <2 x i32> %
 define float @ret_powi_f32_noneg(float nofpclass(ninf nsub nnorm) %arg0, i32 %arg1) #0 {
 ; CHECK-LABEL: define float @ret_powi_f32_noneg
 ; CHECK-SAME: (float nofpclass(ninf nsub nnorm) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -125,7 +126,7 @@ define float @ret_powi_f32_noneg(float nofpclass(ninf nsub nnorm) %arg0, i32 %ar
 define float @ret_powi_f32_noneg_nonzero(float nofpclass(ninf nsub nnorm nzero) %arg0, i32 %arg1) #0 {
 ; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) float @ret_powi_f32_noneg_nonzero
 ; CHECK-SAME: (float nofpclass(ninf nzero nsub nnorm) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -135,7 +136,7 @@ define float @ret_powi_f32_noneg_nonzero(float nofpclass(ninf nsub nnorm nzero)
 define float @ret_powi_f32_noneg_nozero(float nofpclass(ninf nsub nnorm) %arg0, i32 %arg1) #0 {
 ; CHECK-LABEL: define float @ret_powi_f32_noneg_nozero
 ; CHECK-SAME: (float nofpclass(ninf nsub nnorm) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -145,7 +146,7 @@ define float @ret_powi_f32_noneg_nozero(float nofpclass(ninf nsub nnorm) %arg0,
 define float @ret_powi_f32_nonzero(float nofpclass(nzero) %arg0, i32 %arg1) #0 {
 ; CHECK-LABEL: define float @ret_powi_f32_nonzero
 ; CHECK-SAME: (float nofpclass(nzero) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -155,7 +156,7 @@ define float @ret_powi_f32_nonzero(float nofpclass(nzero) %arg0, i32 %arg1) #0 {
 define float @ret_powi_f32_nopzero(float nofpclass(pzero) %arg0, i32 %arg1) #0 {
 ; CHECK-LABEL: define float @ret_powi_f32_nopzero
 ; CHECK-SAME: (float nofpclass(pzero) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -165,7 +166,7 @@ define float @ret_powi_f32_nopzero(float nofpclass(pzero) %arg0, i32 %arg1) #0 {
 define float @ret_powi_f32_noneg_ftz_daz(float nofpclass(ninf nsub nnorm) %arg0, i32 %arg1) #1 {
 ; CHECK-LABEL: define float @ret_powi_f32_noneg_ftz_daz
 ; CHECK-SAME: (float nofpclass(ninf nsub nnorm) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR2:[0-9]+]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -175,7 +176,7 @@ define float @ret_powi_f32_noneg_ftz_daz(float nofpclass(ninf nsub nnorm) %arg0,
 define float @ret_powi_f32_noneg_nonzero_ftz_daz(float nofpclass(ninf nsub nnorm nzero) %arg0, i32 %arg1) #1 {
 ; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) float @ret_powi_f32_noneg_nonzero_ftz_daz
 ; CHECK-SAME: (float nofpclass(ninf nzero nsub nnorm) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR2]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -185,7 +186,7 @@ define float @ret_powi_f32_noneg_nonzero_ftz_daz(float nofpclass(ninf nsub nnorm
 define float @ret_powi_f32_noneg_nonzero_ftpz_dapz(float nofpclass(ninf nsub nnorm nzero) %arg0, i32 %arg1) #2 {
 ; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) float @ret_powi_f32_noneg_nonzero_ftpz_dapz
 ; CHECK-SAME: (float nofpclass(ninf nzero nsub nnorm) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR3:[0-9]+]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -195,7 +196,7 @@ define float @ret_powi_f32_noneg_nonzero_ftpz_dapz(float nofpclass(ninf nsub nno
 define float @ret_powi_f32_noninf_nonnorm(float nofpclass(ninf nnorm) %arg0, i32 %arg1) #0 {
 ; CHECK-LABEL: define float @ret_powi_f32_noninf_nonnorm
 ; CHECK-SAME: (float nofpclass(ninf nnorm) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR1]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -205,7 +206,7 @@ define float @ret_powi_f32_noninf_nonnorm(float nofpclass(ninf nnorm) %arg0, i32
 define float @ret_powi_f32_noninf_nonnorm_ftz_daz(float nofpclass(ninf nnorm) %arg0, i32 %arg1) #1 {
 ; CHECK-LABEL: define float @ret_powi_f32_noninf_nonnorm_ftz_daz
 ; CHECK-SAME: (float nofpclass(ninf nnorm) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR2]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -215,7 +216,7 @@ define float @ret_powi_f32_noninf_nonnorm_ftz_daz(float nofpclass(ninf nnorm) %a
 define float @ret_powi_f32_noneg_ftz_ieee(float nofpclass(ninf nsub nnorm) %arg0, i32 %arg1) #3 {
 ; CHECK-LABEL: define float @ret_powi_f32_noneg_ftz_ieee
 ; CHECK-SAME: (float nofpclass(ninf nsub nnorm) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR4:[0-9]+]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
@@ -225,13 +226,65 @@ define float @ret_powi_f32_noneg_ftz_ieee(float nofpclass(ninf nsub nnorm) %arg0
 define float @ret_powi_f32_noneg_nonzero_ftz_ieee(float nofpclass(ninf nsub nnorm nzero) %arg0, i32 %arg1) #3 {
 ; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) float @ret_powi_f32_noneg_nonzero_ftz_ieee
 ; CHECK-SAME: (float nofpclass(ninf nzero nsub nnorm) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR4]] {
-; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR5]]
+; CHECK-NEXT:    [[CALL:%.*]] = call nofpclass(ninf nzero nsub nnorm) float @llvm.powi.f32.i32(float [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
 ; CHECK-NEXT:    ret float [[CALL]]
 ;
   %call = call float @llvm.powi.f32.i32(float %arg0, i32 %arg1)
   ret float %call
 }
 
+define <4 x float> @powi_v4f32_i32(<4 x float> %arg0, i32 %arg1) {
+; CHECK-LABEL: define <4 x float> @powi_v4f32_i32
+; CHECK-SAME: (<4 x float> [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR5:[0-9]+]] {
+; CHECK-NEXT:    [[POWI:%.*]] = call <4 x float> @llvm.powi.v4f32.i32(<4 x float> [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
+; CHECK-NEXT:    ret <4 x float> [[POWI]]
+;
+  %powi = call <4 x float> @llvm.powi.v4f32.i32(<4 x float> %arg0, i32 %arg1)
+  ret <4 x float> %powi
+}
+
+define <4 x float> @powi_v4f32_i32_nozero(<4 x float> nofpclass(zero) %arg0, i32 %arg1) {
+; CHECK-LABEL: define <4 x float> @powi_v4f32_i32_nozero
+; CHECK-SAME: (<4 x float> nofpclass(zero) [[ARG0:%.*]], i32 [[ARG1:%.*]]) #[[ATTR5]] {
+; CHECK-NEXT:    [[POWI:%.*]] = call <4 x float> @llvm.powi.v4f32.i32(<4 x float> [[ARG0]], i32 [[ARG1]]) #[[ATTR6]]
+; CHECK-NEXT:    ret <4 x float> [[POWI]]
+;
+  %powi = call <4 x float> @llvm.powi.v4f32.i32(<4 x float> %arg0, i32 %arg1)
+  ret <4 x float> %powi
+}
+
+define <4 x float> @powi_v4f32_i32_constint_even(<4 x float> %arg) {
+; CHECK-LABEL: define nofpclass(ninf nzero nsub nnorm) <4 x float> @powi_v4f32_i32_constint_even
+; CHECK-SAME: (<4 x float> [[ARG:%.*]]) #[[ATTR5]] {
+; CHECK-NEXT:    [[POWI:%.*]] = call nofpclass(ninf nzero nsub nnorm) <4 x float> @llvm.powi.v4f32.i32(<4 x float> [[ARG]], i32 noundef 4) #[[ATTR6]]
+; CHECK-NEXT:    ret <4 x float> [[POWI]]
+;
+  %powi = call <4 x float> @llvm.powi.v4f32.i32(<4 x float> %arg, i32 4)
+  ret <4 x float> %powi
+}
+
+define <4 x float> @powi_v4f32_i32_constint_odd(<4 x float> %arg) {
+; CHECK-LABEL: define <4 x float> @powi_v4f32_i32_constint_odd
+; CHECK-SAME: (<4 x float> [[ARG:%.*]]) #[[ATTR5]] {
+; CHECK-NEXT:    [[POWI:%.*]] = call <4 x float> @llvm.powi.v4f32.i32(<4 x float> [[ARG]], i32 noundef 3) #[[ATTR6]]
+; CHECK-NEXT:    ret <4 x float> [[POWI]]
+;
+  %powi = call <4 x float> @llvm.powi.v4f32.i32(<4 x float> %arg, i32 3)
+  ret <4 x float> %powi
+}
+
+define <4 x float> @powi_v4f32_i32_regression(<4 x float> %arg) {
+; CHECK-LABEL: define nofpclass(nzero) <4 x float> @powi_v4f32_i32_regression
+; CHECK-SAME: (<4 x float> [[ARG:%.*]]) #[[ATTR5]] {
+; CHECK-NEXT:    [[POWI:%.*]] = call <4 x float> @llvm.powi.v4f32.i32(<4 x float> [[ARG]], i32 noundef 4) #[[ATTR6]]
+; CHECK-NEXT:    [[USER:%.*]] = fsub <4 x float> [[POWI]], <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>
+; CHECK-NEXT:    ret <4 x float> [[USER]]
+;
+  %powi = call <4 x float> @llvm.powi.v4f32.i32(<4 x float> %arg, i32 4)
+  %user = fsub <4 x float> %powi, <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>
+  ret <4 x float> %user
+}
+
 attributes #0 = { "denormal-fp-math"="ieee,ieee" }
 attributes #1 = { "denormal-fp-math"="preserve-sign,preserve-sign" }
 attributes #2 = { "denormal-fp-math"="positive-zero,positive-zero" }
-- 
2.7.4