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authorHal Finkel <hfinkel@anl.gov>2013-03-27 13:20:52 +0000
committerHal Finkel <hfinkel@anl.gov>2013-03-27 13:20:52 +0000
commit32e12df253de7993f5a9bb89668d98ec0454f623 (patch)
tree5b0da5bae87ae9924846a3e1dabb1f63347b0df1
parentfe37e6279ebbb4ba1eede4bcb8dfe732f0bbcb38 (diff)
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Print PPC ZERO as 0 (not r0) even on Darwin
It seems that the Darwin PPC assembler requires r0 to be written as 0 when it means 0 (at least in lwarx/stwcx.). Fixes PR15605. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178142 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/Target/PowerPC/PPCRegisterInfo.td4
-rw-r--r--test/CodeGen/PowerPC/atomic-1.ll6
2 files changed, 5 insertions, 5 deletions
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.td b/lib/Target/PowerPC/PPCRegisterInfo.td
index aa5584ee3c..57a25f5143 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.td
+++ b/lib/Target/PowerPC/PPCRegisterInfo.td
@@ -87,8 +87,8 @@ foreach Index = 0-31 in {
}
// The reprsentation of r0 when treated as the constant 0.
-def ZERO : GPR<0, "r0">;
-def ZERO8 : GP8<ZERO, "r0">;
+def ZERO : GPR<0, "0">;
+def ZERO8 : GP8<ZERO, "0">;
// Representations of the frame pointer used by ISD::FRAMEADDR.
def FP : GPR<0 /* arbitrary */, "**FRAME POINTER**">;
diff --git a/test/CodeGen/PowerPC/atomic-1.ll b/test/CodeGen/PowerPC/atomic-1.ll
index cbfa4094fb..838db20ddd 100644
--- a/test/CodeGen/PowerPC/atomic-1.ll
+++ b/test/CodeGen/PowerPC/atomic-1.ll
@@ -1,10 +1,10 @@
-; RUN: llc < %s -march=ppc32 | FileCheck %s
+; RUN: llc < %s -mtriple=powerpc-apple-darwin -march=ppc32 | FileCheck %s
define i32 @exchange_and_add(i32* %mem, i32 %val) nounwind {
; CHECK: exchange_and_add:
-; CHECK: lwarx
+; CHECK: lwarx {{r[0-9]+}}, 0, {{r[0-9]+}}
%tmp = atomicrmw add i32* %mem, i32 %val monotonic
-; CHECK: stwcx.
+; CHECK: stwcx. {{r[0-9]+}}, 0, {{r[0-9]+}}
ret i32 %tmp
}