[llvm] 58b4623 - [GVN] add test for commutative intrinsic; NFC

[Sanjay Patel via llvm-commits]

Author: Sanjay Patel
Date: 2020-08-30T16:33:45-04:00
New Revision: 58b46231f3b715f5a7a81007064c241a9a37d2a2

URL: https://github.com/llvm/llvm-project/commit/58b46231f3b715f5a7a81007064c241a9a37d2a2
DIFF: https://github.com/llvm/llvm-project/commit/58b46231f3b715f5a7a81007064c241a9a37d2a2.diff

LOG: [GVN] add test for commutative intrinsic; NFC

Added: 
    

Modified: 
    llvm/test/Transforms/GVN/commute.ll

Removed: 
    


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diff  --git a/llvm/test/Transforms/GVN/commute.ll b/llvm/test/Transforms/GVN/commute.ll
index cdd6ecf2edea..4fb4f99a27fc 100644
--- a/llvm/test/Transforms/GVN/commute.ll
+++ b/llvm/test/Transforms/GVN/commute.ll
@@ -1,23 +1,45 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -gvn -S < %s | FileCheck %s
 
 declare void @use(i32, i32)
 
-define void @foo(i32 %x, i32 %y) {
-  ; CHECK-LABEL: @foo(
+define void @binop(i32 %x, i32 %y) {
+; CHECK-LABEL: @binop(
+; CHECK-NEXT:    [[ADD1:%.*]] = add i32 [[X:%.*]], [[Y:%.*]]
+; CHECK-NEXT:    call void @use(i32 [[ADD1]], i32 [[ADD1]])
+; CHECK-NEXT:    ret void
+;
   %add1 = add i32 %x, %y
   %add2 = add i32 %y, %x
   call void @use(i32 %add1, i32 %add2)
-  ; CHECK: @use(i32 %add1, i32 %add1)
   ret void
 }
 
 declare void @vse(i1, i1)
 
-define void @bar(i32 %x, i32 %y) {
-  ; CHECK-LABEL: @bar(
+define void @cmp(i32 %x, i32 %y) {
+; CHECK-LABEL: @cmp(
+; CHECK-NEXT:    [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], [[Y:%.*]]
+; CHECK-NEXT:    call void @vse(i1 [[CMP1]], i1 [[CMP1]])
+; CHECK-NEXT:    ret void
+;
   %cmp1 = icmp ult i32 %x, %y
   %cmp2 = icmp ugt i32 %y, %x
   call void @vse(i1 %cmp1, i1 %cmp2)
-  ; CHECK: @vse(i1 %cmp1, i1 %cmp1)
   ret void
 }
+
+define void @intrinsic(i32 %x, i32 %y) {
+; CHECK-LABEL: @intrinsic(
+; CHECK-NEXT:    [[M1:%.*]] = call i32 @llvm.umax.i32(i32 [[X:%.*]], i32 [[Y:%.*]])
+; CHECK-NEXT:    [[M2:%.*]] = call i32 @llvm.umax.i32(i32 [[Y]], i32 [[X]])
+; CHECK-NEXT:    call void @use(i32 [[M1]], i32 [[M2]])
+; CHECK-NEXT:    ret void
+;
+  %m1 = call i32 @llvm.umax.i32(i32 %x, i32 %y)
+  %m2 = call i32 @llvm.umax.i32(i32 %y, i32 %x)
+  call void @use(i32 %m1, i32 %m2)
+  ret void
+}
+
+declare i32 @llvm.umax.i32(i32, i32)