[llvm] r296931 - [x86] add test to show failed recognition of commuted pattern; NFC

[Sanjay Patel via llvm-commits]

Author: spatel
Date: Fri Mar  3 18:06:37 2017
New Revision: 296931

URL: http://llvm.org/viewvc/llvm-project?rev=296931&view=rev
Log:
[x86] add test to show failed recognition of commuted pattern; NFC

Modified:
    llvm/trunk/test/CodeGen/X86/conditional-indecrement.ll

Modified: llvm/trunk/test/CodeGen/X86/conditional-indecrement.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/conditional-indecrement.ll?rev=296931&r1=296930&r2=296931&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/conditional-indecrement.ll (original)
+++ llvm/trunk/test/CodeGen/X86/conditional-indecrement.ll Fri Mar  3 18:06:37 2017
@@ -14,6 +14,20 @@ define i32 @test1(i32 %a, i32 %b) nounwi
   ret i32 %retval.0
 }
 
+define i32 @test1_commute(i32 %a, i32 %b) nounwind readnone {
+; CHECK-LABEL: test1_commute:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    xorl %eax, %eax
+; CHECK-NEXT:    testl %edi, %edi
+; CHECK-NEXT:    setne %al
+; CHECK-NEXT:    addl %esi, %eax
+; CHECK-NEXT:    retq
+  %cmp = icmp ne i32 %a, 0
+  %inc = zext i1 %cmp to i32
+  %ret = add i32 %b, %inc
+  ret i32 %ret
+}
+
 define i32 @test2(i32 %a, i32 %b) nounwind readnone {
 ; CHECK-LABEL: test2:
 ; CHECK:       # BB#0: