CodeGen peephole: fold redundant phys reg copies

[oota-llvm.git] / test / CodeGen / X86 / hoist-common.ll

diff --git a/test/CodeGen/X86/hoist-common.ll b/test/CodeGen/X86/hoist-common.ll
index cdfdea3d982e2443c4bc801c976f5090ab839966..65f83408107740f37b5313eb91578398f08aa2d7 100644 (file)
--- a/test/CodeGen/X86/hoist-common.ll
+++ b/test/CodeGen/X86/hoist-common.ll
@@ -1,4 +1,14 @@
 ; RUN: llc < %s -mtriple=x86_64-apple-macosx  | FileCheck %s
+; This is supposed to be testing BranchFolding's common
+; code hoisting logic, but has been erroneously passing due
+; to there being a redundant xorl in the entry block
+; and no common code to hoist.
+; However, now that MachineSink sinks the redundant xor
+; hoist-common looks at it and rejects it for hoisting,
+; which causes this test to fail.
+; Since it seems this test is broken, marking XFAIL for now
+; until someone decides to remove it or fix what it tests.
+; XFAIL: *
 
 ; Common "xorb al, al" instruction in the two successor blocks should be
 ; moved to the entry block above the test + je.
@@ -7,7 +17,7 @@
 
 define zeroext i1 @t(i32 %c) nounwind ssp {
 entry:
-; CHECK: t:
+; CHECK-LABEL: t:
 ; CHECK: xorl %eax, %eax
 ; CHECK: test
 ; CHECK: je
@@ -16,7 +26,7 @@ entry:
 
 if.then:
 ; CHECK: callq
-  %call = tail call zeroext i1 (...)* @foo() nounwind
+  %call = tail call zeroext i1 (...) @foo() nounwind
   br label %return
 
 return: