[llvm] r362902 - [InstSimplify] add tests for fcmp with known-never-nan operands; NFC
Sanjay Patel via llvm-commits
llvm-commits at lists.llvm.org
Sun Jun 9 06:30:14 PDT 2019
Author: spatel
Date: Sun Jun 9 06:30:14 2019
New Revision: 362902
URL: http://llvm.org/viewvc/llvm-project?rev=362902&view=rev
Log:
[InstSimplify] add tests for fcmp with known-never-nan operands; NFC
Opposite predicate for rL362742 / rL362879 / D62979
Modified:
llvm/trunk/test/Transforms/InstSimplify/floating-point-compare.ll
Modified: llvm/trunk/test/Transforms/InstSimplify/floating-point-compare.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstSimplify/floating-point-compare.ll?rev=362902&r1=362901&r2=362902&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstSimplify/floating-point-compare.ll (original)
+++ llvm/trunk/test/Transforms/InstSimplify/floating-point-compare.ll Sun Jun 9 06:30:14 2019
@@ -309,6 +309,30 @@ define <2 x i1> @UIToFP_is_not_negative_
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_ve
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(dou
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)
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