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-rw-r--r--llvm/test/Transforms/InstSimplify/floating-point-arithmetic.ll76
1 files changed, 60 insertions, 16 deletions
diff --git a/llvm/test/Transforms/InstSimplify/floating-point-arithmetic.ll b/llvm/test/Transforms/InstSimplify/floating-point-arithmetic.ll
index 56f39450af9..79eb349ed7e 100644
--- a/llvm/test/Transforms/InstSimplify/floating-point-arithmetic.ll
+++ b/llvm/test/Transforms/InstSimplify/floating-point-arithmetic.ll
@@ -604,8 +604,7 @@ define float @maxnum_same_args(float %x) {
define float @minnum_x_minnum_x_y(float %x, float %y) {
; CHECK-LABEL: @minnum_x_minnum_x_y(
; CHECK-NEXT: [[A:%.*]] = call float @llvm.minnum.f32(float [[X:%.*]], float [[Y:%.*]])
-; CHECK-NEXT: [[B:%.*]] = call float @llvm.minnum.f32(float [[X]], float [[A]])
-; CHECK-NEXT: ret float [[B]]
+; CHECK-NEXT: ret float [[A]]
;
%a = call float @llvm.minnum.f32(float %x, float %y)
%b = call float @llvm.minnum.f32(float %x, float %a)
@@ -615,8 +614,7 @@ define float @minnum_x_minnum_x_y(float %x, float %y) {
define float @minnum_y_minnum_x_y(float %x, float %y) {
; CHECK-LABEL: @minnum_y_minnum_x_y(
; CHECK-NEXT: [[A:%.*]] = call float @llvm.minnum.f32(float [[X:%.*]], float [[Y:%.*]])
-; CHECK-NEXT: [[B:%.*]] = call float @llvm.minnum.f32(float [[Y]], float [[A]])
-; CHECK-NEXT: ret float [[B]]
+; CHECK-NEXT: ret float [[A]]
;
%a = call float @llvm.minnum.f32(float %x, float %y)
%b = call float @llvm.minnum.f32(float %y, float %a)
@@ -626,8 +624,7 @@ define float @minnum_y_minnum_x_y(float %x, float %y) {
define float @minnum_x_y_minnum_x(float %x, float %y) {
; CHECK-LABEL: @minnum_x_y_minnum_x(
; CHECK-NEXT: [[A:%.*]] = call float @llvm.minnum.f32(float [[X:%.*]], float [[Y:%.*]])
-; CHECK-NEXT: [[B:%.*]] = call float @llvm.minnum.f32(float [[A]], float [[X]])
-; CHECK-NEXT: ret float [[B]]
+; CHECK-NEXT: ret float [[A]]
;
%a = call float @llvm.minnum.f32(float %x, float %y)
%b = call float @llvm.minnum.f32(float %a, float %x)
@@ -637,19 +634,43 @@ define float @minnum_x_y_minnum_x(float %x, float %y) {
define float @minnum_x_y_minnum_y(float %x, float %y) {
; CHECK-LABEL: @minnum_x_y_minnum_y(
; CHECK-NEXT: [[A:%.*]] = call float @llvm.minnum.f32(float [[X:%.*]], float [[Y:%.*]])
-; CHECK-NEXT: [[B:%.*]] = call float @llvm.minnum.f32(float [[A]], float [[Y]])
-; CHECK-NEXT: ret float [[B]]
+; CHECK-NEXT: ret float [[A]]
;
%a = call float @llvm.minnum.f32(float %x, float %y)
%b = call float @llvm.minnum.f32(float %a, float %y)
ret float %b
}
+; negative test
+
+define float @minnum_z_minnum_x_y(float %x, float %y, float %z) {
+; CHECK-LABEL: @minnum_z_minnum_x_y(
+; CHECK-NEXT: [[A:%.*]] = call float @llvm.minnum.f32(float [[X:%.*]], float [[Y:%.*]])
+; CHECK-NEXT: [[B:%.*]] = call float @llvm.minnum.f32(float [[Z:%.*]], float [[A]])
+; CHECK-NEXT: ret float [[B]]
+;
+ %a = call float @llvm.minnum.f32(float %x, float %y)
+ %b = call float @llvm.minnum.f32(float %z, float %a)
+ ret float %b
+}
+
+; negative test
+
+define float @minnum_x_y_minnum_z(float %x, float %y, float %z) {
+; CHECK-LABEL: @minnum_x_y_minnum_z(
+; CHECK-NEXT: [[A:%.*]] = call float @llvm.minnum.f32(float [[X:%.*]], float [[Y:%.*]])
+; CHECK-NEXT: [[B:%.*]] = call float @llvm.minnum.f32(float [[A]], float [[Z:%.*]])
+; CHECK-NEXT: ret float [[B]]
+;
+ %a = call float @llvm.minnum.f32(float %x, float %y)
+ %b = call float @llvm.minnum.f32(float %a, float %z)
+ ret float %b
+}
+
define float @maxnum_x_maxnum_x_y(float %x, float %y) {
; CHECK-LABEL: @maxnum_x_maxnum_x_y(
; CHECK-NEXT: [[A:%.*]] = call float @llvm.maxnum.f32(float [[X:%.*]], float [[Y:%.*]])
-; CHECK-NEXT: [[B:%.*]] = call float @llvm.maxnum.f32(float [[X]], float [[A]])
-; CHECK-NEXT: ret float [[B]]
+; CHECK-NEXT: ret float [[A]]
;
%a = call float @llvm.maxnum.f32(float %x, float %y)
%b = call float @llvm.maxnum.f32(float %x, float %a)
@@ -659,8 +680,7 @@ define float @maxnum_x_maxnum_x_y(float %x, float %y) {
define float @maxnum_y_maxnum_x_y(float %x, float %y) {
; CHECK-LABEL: @maxnum_y_maxnum_x_y(
; CHECK-NEXT: [[A:%.*]] = call float @llvm.maxnum.f32(float [[X:%.*]], float [[Y:%.*]])
-; CHECK-NEXT: [[B:%.*]] = call float @llvm.maxnum.f32(float [[Y]], float [[A]])
-; CHECK-NEXT: ret float [[B]]
+; CHECK-NEXT: ret float [[A]]
;
%a = call float @llvm.maxnum.f32(float %x, float %y)
%b = call float @llvm.maxnum.f32(float %y, float %a)
@@ -670,8 +690,7 @@ define float @maxnum_y_maxnum_x_y(float %x, float %y) {
define float @maxnum_x_y_maxnum_x(float %x, float %y) {
; CHECK-LABEL: @maxnum_x_y_maxnum_x(
; CHECK-NEXT: [[A:%.*]] = call float @llvm.maxnum.f32(float [[X:%.*]], float [[Y:%.*]])
-; CHECK-NEXT: [[B:%.*]] = call float @llvm.maxnum.f32(float [[A]], float [[X]])
-; CHECK-NEXT: ret float [[B]]
+; CHECK-NEXT: ret float [[A]]
;
%a = call float @llvm.maxnum.f32(float %x, float %y)
%b = call float @llvm.maxnum.f32(float %a, float %x)
@@ -681,11 +700,36 @@ define float @maxnum_x_y_maxnum_x(float %x, float %y) {
define float @maxnum_x_y_maxnum_y(float %x, float %y) {
; CHECK-LABEL: @maxnum_x_y_maxnum_y(
; CHECK-NEXT: [[A:%.*]] = call float @llvm.maxnum.f32(float [[X:%.*]], float [[Y:%.*]])
-; CHECK-NEXT: [[B:%.*]] = call float @llvm.maxnum.f32(float [[A]], float [[Y]])
-; CHECK-NEXT: ret float [[B]]
+; CHECK-NEXT: ret float [[A]]
;
%a = call float @llvm.maxnum.f32(float %x, float %y)
%b = call float @llvm.maxnum.f32(float %a, float %y)
ret float %b
}
+; negative test
+
+define float @maxnum_z_maxnum_x_y(float %x, float %y, float %z) {
+; CHECK-LABEL: @maxnum_z_maxnum_x_y(
+; CHECK-NEXT: [[A:%.*]] = call float @llvm.maxnum.f32(float [[X:%.*]], float [[Y:%.*]])
+; CHECK-NEXT: [[B:%.*]] = call float @llvm.maxnum.f32(float [[Z:%.*]], float [[A]])
+; CHECK-NEXT: ret float [[B]]
+;
+ %a = call float @llvm.maxnum.f32(float %x, float %y)
+ %b = call float @llvm.maxnum.f32(float %z, float %a)
+ ret float %b
+}
+
+; negative test
+
+define float @maxnum_x_y_maxnum_z(float %x, float %y, float %z) {
+; CHECK-LABEL: @maxnum_x_y_maxnum_z(
+; CHECK-NEXT: [[A:%.*]] = call float @llvm.maxnum.f32(float [[X:%.*]], float [[Y:%.*]])
+; CHECK-NEXT: [[B:%.*]] = call float @llvm.maxnum.f32(float [[A]], float [[Z:%.*]])
+; CHECK-NEXT: ret float [[B]]
+;
+ %a = call float @llvm.maxnum.f32(float %x, float %y)
+ %b = call float @llvm.maxnum.f32(float %a, float %z)
+ ret float %b
+}
+
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