[InstCombine] Combine nested min/max intrinsics with constants
Reviewers: arsenm, spatel
Reviewed By: spatel
Subscribers: lebedev.ri, wdng, llvm-commits
Differential Revision: https://reviews.llvm.org/D53774
llvm-svn: 345751
diff --git a/llvm/test/Transforms/InstCombine/maximum.ll b/llvm/test/Transforms/InstCombine/maximum.ll
index 1b31147..bd97a37 100644
--- a/llvm/test/Transforms/InstCombine/maximum.ll
+++ b/llvm/test/Transforms/InstCombine/maximum.ll
@@ -147,8 +147,7 @@
define float @maximum_f32_1_maximum_val_p0(float %x) {
; CHECK-LABEL: @maximum_f32_1_maximum_val_p0(
-; CHECK-NEXT: [[Y:%.*]] = call float @llvm.maximum.f32(float %x, float 0.000000e+00)
-; CHECK-NEXT: [[RES:%.*]] = call float @llvm.maximum.f32(float [[Y]], float 1.000000e+00)
+; CHECK-NEXT: [[RES:%.*]] = call float @llvm.maximum.f32(float %x, float 1.000000e+00)
; CHECK-NEXT: ret float [[RES]]
%y = call float @llvm.maximum.f32(float %x, float 0.0)
%z = call float @llvm.maximum.f32(float %y, float 1.0)
@@ -157,8 +156,7 @@
define float @maximum_f32_1_maximum_p0_val_fast(float %x) {
; CHECK-LABEL: @maximum_f32_1_maximum_p0_val_fast(
-; CHECK-NEXT: [[Y:%.*]] = call float @llvm.maximum.f32(float %x, float 0.000000e+00)
-; CHECK-NEXT: [[RES:%.*]] = call fast float @llvm.maximum.f32(float [[Y]], float 1.000000e+00)
+; CHECK-NEXT: [[RES:%.*]] = call fast float @llvm.maximum.f32(float %x, float 1.000000e+00)
; CHECK-NEXT: ret float [[RES]]
%y = call float @llvm.maximum.f32(float 0.0, float %x)
%z = call fast float @llvm.maximum.f32(float %y, float 1.0)
@@ -167,8 +165,7 @@
define float @maximum_f32_1_maximum_p0_val_nnan_ninf(float %x) {
; CHECK-LABEL: @maximum_f32_1_maximum_p0_val_nnan_ninf(
-; CHECK-NEXT: [[Y:%.*]] = call float @llvm.maximum.f32(float %x, float 0.000000e+00)
-; CHECK-NEXT: [[RES:%.*]] = call nnan ninf float @llvm.maximum.f32(float [[Y]], float 1.000000e+00)
+; CHECK-NEXT: [[RES:%.*]] = call nnan ninf float @llvm.maximum.f32(float %x, float 1.000000e+00)
; CHECK-NEXT: ret float [[RES]]
%y = call float @llvm.maximum.f32(float 0.0, float %x)
%z = call nnan ninf float @llvm.maximum.f32(float %y, float 1.0)
@@ -177,8 +174,7 @@
define float @maximum_f32_p0_maximum_val_n0(float %x) {
; CHECK-LABEL: @maximum_f32_p0_maximum_val_n0(
-; CHECK-NEXT: [[Y:%.*]] = call float @llvm.maximum.f32(float %x, float -0.000000e+00)
-; CHECK-NEXT: [[RES:%.*]] = call float @llvm.maximum.f32(float [[Y]], float 0.000000e+00)
+; CHECK-NEXT: [[RES:%.*]] = call float @llvm.maximum.f32(float %x, float 0.000000e+00)
; CHECK-NEXT: ret float [[RES]]
%y = call float @llvm.maximum.f32(float %x, float -0.0)
%z = call float @llvm.maximum.f32(float %y, float 0.0)
@@ -187,8 +183,7 @@
define float @maximum_f32_1_maximum_p0_val(float %x) {
; CHECK-LABEL: @maximum_f32_1_maximum_p0_val(
-; CHECK-NEXT: [[Y:%.*]] = call float @llvm.maximum.f32(float %x, float 0.000000e+00)
-; CHECK-NEXT: [[RES:%.*]] = call float @llvm.maximum.f32(float [[Y]], float 1.000000e+00)
+; CHECK-NEXT: [[RES:%.*]] = call float @llvm.maximum.f32(float %x, float 1.000000e+00)
; CHECK-NEXT: ret float [[RES]]
%y = call float @llvm.maximum.f32(float 0.0, float %x)
%z = call float @llvm.maximum.f32(float %y, float 1.0)
@@ -197,8 +192,7 @@
define <2 x float> @maximum_f32_1_maximum_val_p0_val_v2f32(<2 x float> %x) {
; CHECK-LABEL: @maximum_f32_1_maximum_val_p0_val_v2f32(
-; CHECK-NEXT: [[Y:%.*]] = call <2 x float> @llvm.maximum.v2f32(<2 x float> %x, <2 x float> zeroinitializer)
-; CHECK-NEXT: [[RES:%.*]] = call <2 x float> @llvm.maximum.v2f32(<2 x float> [[Y]], <2 x float> <float 1.000000e+00, float 1.000000e+00>)
+; CHECK-NEXT: [[RES:%.*]] = call <2 x float> @llvm.maximum.v2f32(<2 x float> %x, <2 x float> <float 1.000000e+00, float 1.000000e+00>)
; CHECK-NEXT: ret <2 x float> [[RES]]
%y = call <2 x float> @llvm.maximum.v2f32(<2 x float> %x, <2 x float> zeroinitializer)
%z = call <2 x float> @llvm.maximum.v2f32(<2 x float> %y, <2 x float><float 1.0, float 1.0>)