[llvm] f150d29 - [InstCombine] add tests for min/max reassociation; NFC

[Sanjay Patel via llvm-commits]

Author: Sanjay Patel
Date: 2022-02-16T12:16:24-05:00
New Revision: f150d295da1ee204a40fa5a308fde6c0dd6361d6

URL: https://github.com/llvm/llvm-project/commit/f150d295da1ee204a40fa5a308fde6c0dd6361d6
DIFF: https://github.com/llvm/llvm-project/commit/f150d295da1ee204a40fa5a308fde6c0dd6361d6.diff

LOG: [InstCombine] add tests for min/max reassociation; NFC

D119851

Added: 
    

Modified: 
    llvm/test/Transforms/InstCombine/minmax-intrinsics.ll

Removed: 
    


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diff  --git a/llvm/test/Transforms/InstCombine/minmax-intrinsics.ll b/llvm/test/Transforms/InstCombine/minmax-intrinsics.ll
index a309c011f3a2..b264cbbc1f10 100644
--- a/llvm/test/Transforms/InstCombine/minmax-intrinsics.ll
+++ b/llvm/test/Transforms/InstCombine/minmax-intrinsics.ll
@@ -2233,8 +2233,8 @@ define i8 @umax_umax_reassoc_constant(i8 %x, i8 %y) {
   ret i8 %m2
 }
 
-define <3 x i8> @umin_smin_reassoc_constant(<3 x i8> %x, <3 x i8> %y) {
-; CHECK-LABEL: @umin_smin_reassoc_constant(
+define <3 x i8> @umin_umin_reassoc_constant(<3 x i8> %x, <3 x i8> %y) {
+; CHECK-LABEL: @umin_umin_reassoc_constant(
 ; CHECK-NEXT:    [[M1:%.*]] = call <3 x i8> @llvm.umin.v3i8(<3 x i8> [[X:%.*]], <3 x i8> [[Y:%.*]])
 ; CHECK-NEXT:    [[M2:%.*]] = call <3 x i8> @llvm.umin.v3i8(<3 x i8> [[M1]], <3 x i8> <i8 43, i8 -43, i8 0>)
 ; CHECK-NEXT:    ret <3 x i8> [[M2]]
@@ -2257,6 +2257,63 @@ define i8 @umin_umin_reassoc_constant_use(i8 %x, i8 %y) {
   ret i8 %m2
 }
 
+define i8 @smax_smax_reassoc_constant_sink(i8 %x, i8 %y) {
+; CHECK-LABEL: @smax_smax_reassoc_constant_sink(
+; CHECK-NEXT:    [[M1:%.*]] = call i8 @llvm.smax.i8(i8 [[X:%.*]], i8 42)
+; CHECK-NEXT:    [[M2:%.*]] = call i8 @llvm.smax.i8(i8 [[M1]], i8 [[Y:%.*]])
+; CHECK-NEXT:    ret i8 [[M2]]
+;
+  %m1 = call i8 @llvm.smax.i8(i8 %x, i8 42)
+  %m2 = call i8 @llvm.smax.i8(i8 %m1, i8 %y)
+  ret i8 %m2
+}
+
+define <3 x i8> @smin_smin_reassoc_constant_sink(<3 x i8> %x, <3 x i8> %y) {
+; CHECK-LABEL: @smin_smin_reassoc_constant_sink(
+; CHECK-NEXT:    [[M1:%.*]] = call <3 x i8> @llvm.smin.v3i8(<3 x i8> [[X:%.*]], <3 x i8> <i8 43, i8 -43, i8 0>)
+; CHECK-NEXT:    [[M2:%.*]] = call <3 x i8> @llvm.smin.v3i8(<3 x i8> [[M1]], <3 x i8> [[Y:%.*]])
+; CHECK-NEXT:    ret <3 x i8> [[M2]]
+;
+  %m1 = call <3 x i8> @llvm.smin.v3i8(<3 x i8> %x, <3 x i8> <i8 43, i8 -43, i8 0>)
+  %m2 = call <3 x i8> @llvm.smin.v3i8(<3 x i8> %m1, <3 x i8> %y)
+  ret <3 x i8> %m2
+}
+
+define i8 @umax_umax_reassoc_constant_sink(i8 %x, i8 %y) {
+; CHECK-LABEL: @umax_umax_reassoc_constant_sink(
+; CHECK-NEXT:    [[M1:%.*]] = call i8 @llvm.umax.i8(i8 [[X:%.*]], i8 42)
+; CHECK-NEXT:    [[M2:%.*]] = call i8 @llvm.umax.i8(i8 [[M1]], i8 [[Y:%.*]])
+; CHECK-NEXT:    ret i8 [[M2]]
+;
+  %m1 = call i8 @llvm.umax.i8(i8 %x, i8 42)
+  %m2 = call i8 @llvm.umax.i8(i8 %m1, i8 %y)
+  ret i8 %m2
+}
+
+define <3 x i8> @umin_umin_reassoc_constant_sink(<3 x i8> %x, <3 x i8> %y) {
+; CHECK-LABEL: @umin_umin_reassoc_constant_sink(
+; CHECK-NEXT:    [[M1:%.*]] = call <3 x i8> @llvm.umin.v3i8(<3 x i8> [[X:%.*]], <3 x i8> <i8 43, i8 -43, i8 0>)
+; CHECK-NEXT:    [[M2:%.*]] = call <3 x i8> @llvm.umin.v3i8(<3 x i8> [[M1]], <3 x i8> [[Y:%.*]])
+; CHECK-NEXT:    ret <3 x i8> [[M2]]
+;
+  %m1 = call <3 x i8> @llvm.umin.v3i8(<3 x i8> %x, <3 x i8> <i8 43, i8 -43, i8 0>)
+  %m2 = call <3 x i8> @llvm.umin.v3i8(<3 x i8> %m1, <3 x i8> %y)
+  ret <3 x i8> %m2
+}
+
+define i8 @umin_umin_reassoc_constant_sink_use(i8 %x, i8 %y) {
+; CHECK-LABEL: @umin_umin_reassoc_constant_sink_use(
+; CHECK-NEXT:    [[M1:%.*]] = call i8 @llvm.umin.i8(i8 [[X:%.*]], i8 42)
+; CHECK-NEXT:    call void @use(i8 [[M1]])
+; CHECK-NEXT:    [[M2:%.*]] = call i8 @llvm.umin.i8(i8 [[M1]], i8 [[Y:%.*]])
+; CHECK-NEXT:    ret i8 [[M2]]
+;
+  %m1 = call i8 @llvm.umin.i8(i8 %x, i8 42)
+  call void @use(i8 %m1)
+  %m2 = call i8 @llvm.umin.i8(i8 %m1, i8 %y)
+  ret i8 %m2
+}
+
 define i8 @smax_smax_smax_reassoc_constants(i8 %x, i8 %y) {
 ; CHECK-LABEL: @smax_smax_smax_reassoc_constants(
 ; CHECK-NEXT:    [[M1:%.*]] = call i8 @llvm.smax.i8(i8 [[X:%.*]], i8 42)