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-rw-r--r--test/CodeGen/X86/hoist-common.ll10
1 files changed, 10 insertions, 0 deletions
diff --git a/test/CodeGen/X86/hoist-common.ll b/test/CodeGen/X86/hoist-common.ll
index 6b2687631a..01d1b8c034 100644
--- 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.