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[InstSimplify] add tests for fcmp with known-never-nan operands; NFC

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Opposite predicate for rL362742 / rL362879 / D62979

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362902 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjay Patel
2019-06-09 13:30:14 +00:00
parent c4a28d7017
commit 4cca04faf2
1 changed files with 48 additions and 2 deletions
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test/Transforms/InstSimplify/floating-point-compare.ll
+48 -2
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@@ -309,6 +309,30 @@ define <2 x i1> @UIToFP_is_not_negative_vec(<2 x i32> %x) {
ret <2 x i1> %r
}
; No FMF are required for this transform.
define i1 @UIToFP_is_not_negative_or_nan(i32 %x) {
; CHECK-LABEL: @UIToFP_is_not_negative_or_nan(
; CHECK-NEXT: [[A:%.*]] = uitofp i32 [[X:%.*]] to float
; CHECK-NEXT: [[R:%.*]] = fcmp ult float [[A]], 0.000000e+00
; CHECK-NEXT: ret i1 [[R]]
;
%a = uitofp i32 %x to float
%r = fcmp ult float %a, 0.000000e+00
ret i1 %r
}
define <2 x i1> @UIToFP_is_not_negative_or_nan_vec(<2 x i32> %x) {
; CHECK-LABEL: @UIToFP_is_not_negative_or_nan_vec(
; CHECK-NEXT: [[A:%.*]] = uitofp <2 x i32> [[X:%.*]] to <2 x float>
; CHECK-NEXT: [[R:%.*]] = fcmp ult <2 x float> [[A]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%a = uitofp <2 x i32> %x to <2 x float>
%r = fcmp ult <2 x float> %a, zeroinitializer
ret <2 x i1> %r
}
define i1 @UIToFP_nnan_is_not_negative(i32 %x) {
; CHECK-LABEL: @UIToFP_nnan_is_not_negative(
; CHECK-NEXT: ret i1 false
@@ -401,6 +425,28 @@ define <2 x i1> @fabs_is_not_negative_vec(<2 x double> %x) {
define i1 @fabs_nnan_is_not_negative(double %x) {
; CHECK-LABEL: @fabs_nnan_is_not_negative(
; CHECK-NEXT: [[FABS:%.*]] = tail call nnan double @llvm.fabs.f64(double [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = fcmp ult double [[FABS]], 0.000000e+00
; CHECK-NEXT: ret i1 [[CMP]]
;
%fabs = tail call nnan double @llvm.fabs.f64(double %x)
%cmp = fcmp ult double %fabs, 0.0
ret i1 %cmp
}
define <2 x i1> @fabs_nnan_is_not_negative_vec(<2 x double> %x) {
; CHECK-LABEL: @fabs_nnan_is_not_negative_vec(
; CHECK-NEXT: [[FABS:%.*]] = tail call nnan <2 x double> @llvm.fabs.v2f64(<2 x double> [[X:%.*]])
; CHECK-NEXT: [[CMP:%.*]] = fcmp ult <2 x double> [[FABS]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%fabs = tail call nnan <2 x double> @llvm.fabs.v2f64(<2 x double> %x)
%cmp = fcmp ult <2 x double> %fabs, zeroinitializer
ret <2 x i1> %cmp
}
define i1 @fabs_fcmp-nnan_is_not_negative(double %x) {
; CHECK-LABEL: @fabs_fcmp-nnan_is_not_negative(
; CHECK-NEXT: ret i1 false
;
%fabs = tail call double @llvm.fabs.f64(double %x)
@@ -408,8 +454,8 @@ define i1 @fabs_nnan_is_not_negative(double %x) {
ret i1 %cmp
}
define <2 x i1> @fabs_nnan_is_not_negative_vec(<2 x double> %x) {
; CHECK-LABEL: @fabs_nnan_is_not_negative_vec(
define <2 x i1> @fabs_fcmp-nnan_is_not_negative_vec(<2 x double> %x) {
; CHECK-LABEL: @fabs_fcmp-nnan_is_not_negative_vec(
; CHECK-NEXT: ret <2 x i1> zeroinitializer
;
%fabs = tail call <2 x double> @llvm.fabs.v2f64(<2 x double> %x)