[llvm] r359970 - Add InstCombine tests for FNeg instruction.

[Cameron McInally via llvm-commits]

Author: mcinally
Date: Sat May  4 07:56:08 2019
New Revision: 359970

URL: http://llvm.org/viewvc/llvm-project?rev=359970&view=rev
Log:
Add InstCombine tests for FNeg instruction.

Modified:
    llvm/trunk/test/Transforms/InstCombine/fneg.ll

Modified: llvm/trunk/test/Transforms/InstCombine/fneg.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/fneg.ll?rev=359970&r1=359969&r2=359970&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/fneg.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/fneg.ll Sat May  4 07:56:08 2019
@@ -156,3 +156,49 @@ define <4 x double> @fdiv_op0_constant_f
   ret <4 x double> %r
 }
 
+; Actual fneg instructions.
+
+define float @fneg_constant() {
+; CHECK-LABEL: @fneg_constant(
+; CHECK-NEXT:    [[R:%.*]] = fneg float -0.000000e+00
+; CHECK-NEXT:    ret float [[R]]
+;
+  %r = fneg float -0.0
+  ret float %r
+}
+
+define float @fneg_undef() {
+; CHECK-LABEL: @fneg_undef(
+; CHECK-NEXT:    [[R:%.*]] = fneg float undef
+; CHECK-NEXT:    ret float [[R]]
+;
+  %r = fneg float undef
+  ret float %r
+}
+
+define <4 x float> @fneg_constant_elts_v4f32() {
+; CHECK-LABEL: @fneg_constant_elts_v4f32(
+; CHECK-NEXT:    [[R:%.*]] = fneg <4 x float> <float -0.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00>
+; CHECK-NEXT:    ret <4 x float> [[R]]
+;
+  %r = fneg <4 x float> <float -0.0, float 0.0, float -1.0, float 1.0>
+  ret <4 x float> %r
+}
+
+define <4 x float> @fneg_constant_undef_elts_v4f32() {
+; CHECK-LABEL: @fneg_constant_undef_elts_v4f32(
+; CHECK-NEXT:    [[R:%.*]] = fneg <4 x float> <float -0.000000e+00, float undef, float undef, float 1.000000e+00>
+; CHECK-NEXT:    ret <4 x float> [[R]]
+;
+  %r = fneg <4 x float> <float -0.0, float undef, float undef, float 1.0>
+  ret <4 x float> %r
+}
+
+define <4 x float> @fneg_constant_all_undef_elts_v4f32() {
+; CHECK-LABEL: @fneg_constant_all_undef_elts_v4f32(
+; CHECK-NEXT:    [[R:%.*]] = fneg <4 x float> undef
+; CHECK-NEXT:    ret <4 x float> [[R]]
+;
+  %r = fneg <4 x float> <float undef, float undef, float undef, float undef>
+  ret <4 x float> %r
+}