[InstCombine] regenerate test checks; NFC

llvm-svn: 318416

1 files changed, 97 insertions, 82 deletions

diff --git a/llvm/test/Transforms/InstCombine/fabs.ll b/llvm/test/Transforms/InstCombine/fabs.ll
index a95f7b306b5..18f7bc0c705 100644
--- a/llvm/test/Transforms/InstCombine/fabs.ll
+++ b/llvm/test/Transforms/InstCombine/fabs.ll
@@ -13,160 +13,171 @@ declare float @llvm.fma.f32(float, float, float)
 declare float @llvm.fmuladd.f32(float, float, float)
 
 define float @replace_fabs_call_f32(float %x) {
+; CHECK-LABEL: @replace_fabs_call_f32(
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.fabs.f32(float %x)
+; CHECK-NEXT:    ret float [[TMP1]]
+;
   %fabsf = tail call float @fabsf(float %x)
   ret float %fabsf
-
-; CHECK-LABEL: @replace_fabs_call_f32(
-; CHECK-NEXT: %fabsf = call float @llvm.fabs.f32(float %x)
-; CHECK-NEXT: ret float %fabsf
 }
 
 define double @replace_fabs_call_f64(double %x) {
+; CHECK-LABEL: @replace_fabs_call_f64(
+; CHECK-NEXT:    [[TMP1:%.*]] = call double @llvm.fabs.f64(double %x)
+; CHECK-NEXT:    ret double [[TMP1]]
+;
   %fabs = tail call double @fabs(double %x)
   ret double %fabs
-
-; CHECK-LABEL: @replace_fabs_call_f64(
-; CHECK-NEXT: %fabs = call double @llvm.fabs.f64(double %x)
-; CHECK-NEXT: ret double %fabs
 }
 
 define fp128 @replace_fabs_call_f128(fp128 %x) {
+; CHECK-LABEL: @replace_fabs_call_f128(
+; CHECK-NEXT:    [[TMP1:%.*]] = call fp128 @llvm.fabs.f128(fp128 %x)
+; CHECK-NEXT:    ret fp128 [[TMP1]]
+;
   %fabsl = tail call fp128 @fabsl(fp128 %x)
   ret fp128 %fabsl
-
-; CHECK-LABEL: replace_fabs_call_f128(
-; CHECK-NEXT: %fabsl = call fp128 @llvm.fabs.f128(fp128 %x)
-; CHECK-NEXT: ret fp128 %fabsl
 }
 
 ; Make sure fast math flags are preserved when replacing the libcall.
 define float @fmf_replace_fabs_call_f32(float %x) {
+; CHECK-LABEL: @fmf_replace_fabs_call_f32(
+; CHECK-NEXT:    [[TMP1:%.*]] = call nnan float @llvm.fabs.f32(float %x)
+; CHECK-NEXT:    ret float [[TMP1]]
+;
   %fabsf = tail call nnan float @fabsf(float %x)
   ret float %fabsf
-
-; CHECK-LABEL: @fmf_replace_fabs_call_f32(
-; CHECK-NEXT: %fabsf = call nnan float @llvm.fabs.f32(float %x)
-; CHECK-NEXT: ret float %fabsf
 }
 
 ; Make sure all intrinsic calls are eliminated when the input is known
 ; positive.
 
 ; The fabs cannot be eliminated because %x may be a NaN
+
 define float @square_fabs_intrinsic_f32(float %x) {
+; CHECK-LABEL: @square_fabs_intrinsic_f32(
+; CHECK-NEXT:    [[MUL:%.*]] = fmul float %x, %x
+; CHECK-NEXT:    [[FABSF:%.*]] = tail call float @llvm.fabs.f32(float [[MUL]])
+; CHECK-NEXT:    ret float [[FABSF]]
+;
   %mul = fmul float %x, %x
   %fabsf = tail call float @llvm.fabs.f32(float %mul)
   ret float %fabsf
-
-; CHECK-LABEL: square_fabs_intrinsic_f32(
-; CHECK-NEXT: %mul = fmul float %x, %x
-; CHECK-NEXT: %fabsf = tail call float @llvm.fabs.f32(float %mul)
-; CHECK-NEXT: ret float %fabsf
 }
 
 define double @square_fabs_intrinsic_f64(double %x) {
+; CHECK-LABEL: @square_fabs_intrinsic_f64(
+; CHECK-NEXT:    [[MUL:%.*]] = fmul double %x, %x
+; CHECK-NEXT:    [[FABS:%.*]] = tail call double @llvm.fabs.f64(double [[MUL]])
+; CHECK-NEXT:    ret double [[FABS]]
+;
   %mul = fmul double %x, %x
   %fabs = tail call double @llvm.fabs.f64(double %mul)
   ret double %fabs
-
-; CHECK-LABEL: square_fabs_intrinsic_f64(
-; CHECK-NEXT: %mul = fmul double %x, %x
-; CHECK-NEXT: %fabs = tail call double @llvm.fabs.f64(double %mul)
-; CHECK-NEXT: ret double %fabs
 }
 
 define fp128 @square_fabs_intrinsic_f128(fp128 %x) {
+; CHECK-LABEL: @square_fabs_intrinsic_f128(
+; CHECK-NEXT:    [[MUL:%.*]] = fmul fp128 %x, %x
+; CHECK-NEXT:    [[FABSL:%.*]] = tail call fp128 @llvm.fabs.f128(fp128 [[MUL]])
+; CHECK-NEXT:    ret fp128 [[FABSL]]
+;
   %mul = fmul fp128 %x, %x
   %fabsl = tail call fp128 @llvm.fabs.f128(fp128 %mul)
   ret fp128 %fabsl
-
-; CHECK-LABEL: square_fabs_intrinsic_f128(
-; CHECK-NEXT: %mul = fmul fp128 %x, %x
-; CHECK-NEXT: %fabsl = tail call fp128 @llvm.fabs.f128(fp128 %mul)
-; CHECK-NEXT: ret fp128 %fabsl
 }
 
 define float @square_nnan_fabs_intrinsic_f32(float %x) {
+; CHECK-LABEL: @square_nnan_fabs_intrinsic_f32(
+; CHECK-NEXT:    [[MUL:%.*]] = fmul nnan float %x, %x
+; CHECK-NEXT:    ret float [[MUL]]
+;
   %mul = fmul nnan float %x, %x
   %fabsf = call float @llvm.fabs.f32(float %mul)
   ret float %fabsf
-
-; CHECK-LABEL: square_nnan_fabs_intrinsic_f32(
-; CHECK-NEXT: %mul = fmul nnan float %x, %x
-; CHECK-NEXT: ret float %mul
 }
 
 ; Shrinking a library call to a smaller type should not be inhibited by nor inhibit the square optimization.
 
 define float @square_fabs_shrink_call1(float %x) {
+; CHECK-LABEL: @square_fabs_shrink_call1(
+; CHECK-NEXT:    [[TMP1:%.*]] = fmul float %x, %x
+; CHECK-NEXT:    [[TRUNC:%.*]] = call float @llvm.fabs.f32(float [[TMP1]])
+; CHECK-NEXT:    ret float [[TRUNC]]
+;
   %ext = fpext float %x to double
   %sq = fmul double %ext, %ext
   %fabs = call double @fabs(double %sq)
   %trunc = fptrunc double %fabs to float
   ret float %trunc
-
-; CHECK-LABEL: square_fabs_shrink_call1(
-; CHECK-NEXT: fmul float %x, %x
-; CHECK-NEXT: %trunc = call float @llvm.fabs.f32(float
-; CHECK-NEXT: ret float %trunc
 }
 
 define float @square_fabs_shrink_call2(float %x) {
+; CHECK-LABEL: @square_fabs_shrink_call2(
+; CHECK-NEXT:    [[SQ:%.*]] = fmul float %x, %x
+; CHECK-NEXT:    [[TRUNC:%.*]] = call float @llvm.fabs.f32(float [[SQ]])
+; CHECK-NEXT:    ret float [[TRUNC]]
+;
   %sq = fmul float %x, %x
   %ext = fpext float %sq to double
   %fabs = call double @fabs(double %ext)
   %trunc = fptrunc double %fabs to float
   ret float %trunc
-
-; CHECK-LABEL: square_fabs_shrink_call2(
-; CHECK-NEXT: %sq = fmul float %x, %x
-; CHECK-NEXT: %trunc = call float @llvm.fabs.f32(float %sq)
-; CHECK-NEXT: ret float %trunc
 }
 
-; CHECK-LABEL: @fabs_select_constant_negative_positive(
-; CHECK: %fabs = select i1 %cmp, float 1.000000e+00, float 2.000000e+00
-; CHECK-NEXT: ret float %fabs
 define float @fabs_select_constant_negative_positive(i32 %c) {
+; CHECK-LABEL: @fabs_select_constant_negative_positive(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 %c, 0
+; CHECK-NEXT:    [[FABS:%.*]] = select i1 [[CMP]], float 1.000000e+00, float 2.000000e+00
+; CHECK-NEXT:    ret float [[FABS]]
+;
   %cmp = icmp eq i32 %c, 0
   %select = select i1 %cmp, float -1.0, float 2.0
   %fabs = call float @llvm.fabs.f32(float %select)
   ret float %fabs
 }
 
-; CHECK-LABEL: @fabs_select_constant_positive_negative(
-; CHECK: %fabs = select i1 %cmp, float 1.000000e+00, float 2.000000e+00
-; CHECK-NEXT: ret float %fabs
 define float @fabs_select_constant_positive_negative(i32 %c) {
+; CHECK-LABEL: @fabs_select_constant_positive_negative(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 %c, 0
+; CHECK-NEXT:    [[FABS:%.*]] = select i1 [[CMP]], float 1.000000e+00, float 2.000000e+00
+; CHECK-NEXT:    ret float [[FABS]]
+;
   %cmp = icmp eq i32 %c, 0
   %select = select i1 %cmp, float 1.0, float -2.0
   %fabs = call float @llvm.fabs.f32(float %select)
   ret float %fabs
 }
 
-; CHECK-LABEL: @fabs_select_constant_negative_negative(
-; CHECK: %fabs = select i1 %cmp, float 1.000000e+00, float 2.000000e+00
-; CHECK-NEXT: ret float %fabs
 define float @fabs_select_constant_negative_negative(i32 %c) {
+; CHECK-LABEL: @fabs_select_constant_negative_negative(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 %c, 0
+; CHECK-NEXT:    [[FABS:%.*]] = select i1 [[CMP]], float 1.000000e+00, float 2.000000e+00
+; CHECK-NEXT:    ret float [[FABS]]
+;
   %cmp = icmp eq i32 %c, 0
   %select = select i1 %cmp, float -1.0, float -2.0
   %fabs = call float @llvm.fabs.f32(float %select)
   ret float %fabs
 }
 
-; CHECK-LABEL: @fabs_select_constant_neg0(
-; CHECK-NEXT: ret float 0.0
 define float @fabs_select_constant_neg0(i32 %c) {
+; CHECK-LABEL: @fabs_select_constant_neg0(
+; CHECK-NEXT:    ret float 0.000000e+00
+;
   %cmp = icmp eq i32 %c, 0
   %select = select i1 %cmp, float -0.0, float 0.0
   %fabs = call float @llvm.fabs.f32(float %select)
   ret float %fabs
 }
 
-; CHECK-LABEL: @fabs_select_var_constant_negative(
-; CHECK: %select = select i1 %cmp, float %x, float -1.000000e+00
-; CHECK: %fabs = call float @llvm.fabs.f32(float %select)
 define float @fabs_select_var_constant_negative(i32 %c, float %x) {
+; CHECK-LABEL: @fabs_select_var_constant_negative(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 %c, 0
+; CHECK-NEXT:    [[SELECT:%.*]] = select i1 [[CMP]], float %x, float -1.000000e+00
+; CHECK-NEXT:    [[FABS:%.*]] = call float @llvm.fabs.f32(float [[SELECT]])
+; CHECK-NEXT:    ret float [[FABS]]
+;
   %cmp = icmp eq i32 %c, 0
   %select = select i1 %cmp, float %x, float -1.0
   %fabs = call float @llvm.fabs.f32(float %select)
@@ -174,56 +185,60 @@ define float @fabs_select_var_constant_negative(i32 %c, float %x) {
 }
 
 ; The fabs cannot be eliminated because %x may be a NaN
+
 define float @square_fma_fabs_intrinsic_f32(float %x) {
+; CHECK-LABEL: @square_fma_fabs_intrinsic_f32(
+; CHECK-NEXT:    [[FMA:%.*]] = call float @llvm.fma.f32(float %x, float %x, float 1.000000e+00)
+; CHECK-NEXT:    [[FABSF:%.*]] = call float @llvm.fabs.f32(float [[FMA]])
+; CHECK-NEXT:    ret float [[FABSF]]
+;
   %fma = call float @llvm.fma.f32(float %x, float %x, float 1.0)
   %fabsf = call float @llvm.fabs.f32(float %fma)
   ret float %fabsf
-
-; CHECK-LABEL: @square_fma_fabs_intrinsic_f32(
-; CHECK-NEXT: %fma = call float @llvm.fma.f32(float %x, float %x, float 1.000000e+00)
-; CHECK-NEXT: %fabsf = call float @llvm.fabs.f32(float %fma)
-; CHECK-NEXT: ret float %fabsf
 }
 
 ; The fabs cannot be eliminated because %x may be a NaN
+
 define float @square_nnan_fma_fabs_intrinsic_f32(float %x) {
+; CHECK-LABEL: @square_nnan_fma_fabs_intrinsic_f32(
+; CHECK-NEXT:    [[FMA:%.*]] = call nnan float @llvm.fma.f32(float %x, float %x, float 1.000000e+00)
+; CHECK-NEXT:    ret float [[FMA]]
+;
   %fma = call nnan float @llvm.fma.f32(float %x, float %x, float 1.0)
   %fabsf = call float @llvm.fabs.f32(float %fma)
   ret float %fabsf
-
-; CHECK-LABEL: @square_nnan_fma_fabs_intrinsic_f32(
-; CHECK-NEXT: %fma = call nnan float @llvm.fma.f32(float %x, float %x, float 1.000000e+00)
-; CHECK-NEXT: ret float %fma
 }
 
 define float @square_fmuladd_fabs_intrinsic_f32(float %x) {
+; CHECK-LABEL: @square_fmuladd_fabs_intrinsic_f32(
+; CHECK-NEXT:    [[FMULADD:%.*]] = call float @llvm.fmuladd.f32(float %x, float %x, float 1.000000e+00)
+; CHECK-NEXT:    [[FABSF:%.*]] = call float @llvm.fabs.f32(float [[FMULADD]])
+; CHECK-NEXT:    ret float [[FABSF]]
+;
   %fmuladd = call float @llvm.fmuladd.f32(float %x, float %x, float 1.0)
   %fabsf = call float @llvm.fabs.f32(float %fmuladd)
   ret float %fabsf
-
-; CHECK-LABEL: @square_fmuladd_fabs_intrinsic_f32(
-; CHECK-NEXT: %fmuladd = call float @llvm.fmuladd.f32(float %x, float %x, float 1.000000e+00)
-; CHECK-NEXT: %fabsf = call float @llvm.fabs.f32(float %fmuladd)
-; CHECK-NEXT: ret float %fabsf
 }
 
 define float @square_nnan_fmuladd_fabs_intrinsic_f32(float %x) {
+; CHECK-LABEL: @square_nnan_fmuladd_fabs_intrinsic_f32(
+; CHECK-NEXT:    [[FMULADD:%.*]] = call nnan float @llvm.fmuladd.f32(float %x, float %x, float 1.000000e+00)
+; CHECK-NEXT:    ret float [[FMULADD]]
+;
   %fmuladd = call nnan float @llvm.fmuladd.f32(float %x, float %x, float 1.0)
   %fabsf = call float @llvm.fabs.f32(float %fmuladd)
   ret float %fabsf
-
-; CHECK-LABEL: @square_nnan_fmuladd_fabs_intrinsic_f32(
-; CHECK-NEXT: %fmuladd = call nnan float @llvm.fmuladd.f32(float %x, float %x, float 1.000000e+00)
-; CHECK-NEXT: ret float %fmuladd
 }
 
 ; Don't introduce a second fpext
-; CHECK-LABEL: @multi_use_fabs_fpext(
-; CHECK: %fpext = fpext float %x to double
-; CHECK-NEXT: %fabs = call double @llvm.fabs.f64(double %fpext)
-; CHECK-NEXT: store volatile double %fpext, double* undef, align 8
-; CHECK-NEXT: ret double %fabs
+
 define double @multi_use_fabs_fpext(float %x) {
+; CHECK-LABEL: @multi_use_fabs_fpext(
+; CHECK-NEXT:    [[FPEXT:%.*]] = fpext float %x to double
+; CHECK-NEXT:    [[FABS:%.*]] = call double @llvm.fabs.f64(double [[FPEXT]])
+; CHECK-NEXT:    store volatile double [[FPEXT]], double* undef, align 8
+; CHECK-NEXT:    ret double [[FABS]]
+;
   %fpext = fpext float %x to double
   %fabs = call double @llvm.fabs.f64(double %fpext)
   store volatile double %fpext, double* undef