diff options
| author | Bill Wendling <isanbard@gmail.com> | 2008-07-11 07:18:52 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2008-07-11 07:18:52 +0000 |
| commit | 71ca353ae686ce9249eb333a48f12c1e4d47a319 (patch) | |
| tree | 6a021684acf671671866acb72a8fcb2fe705ff7f | |
| parent | d01bee71705d11078b7db19a8e56503b974c8899 (diff) | |
| download | llvm-71ca353ae686ce9249eb333a48f12c1e4d47a319.tar.gz llvm-71ca353ae686ce9249eb333a48f12c1e4d47a319.tar.bz2 llvm-71ca353ae686ce9249eb333a48f12c1e4d47a319.tar.xz | |
The frame address on an x86-64 box needs to be offset by -8, not -4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53450 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 2 | ||||
| -rw-r--r-- | test/CodeGen/X86/x86-64-frameaddr.ll | 11 |
2 files changed, 12 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 958f7425cd..5dd0116726 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -5348,7 +5348,7 @@ SDOperand X86TargetLowering::LowerFRAMEADDR(SDOperand Op, SelectionDAG &DAG) { SDOperand RetAddrFI = getReturnAddressFrameIndex(DAG); return DAG.getNode(ISD::SUB, getPointerTy(), RetAddrFI, - DAG.getIntPtrConstant(4)); + DAG.getIntPtrConstant(!Subtarget->is64Bit() ? 4 : 8)); } SDOperand X86TargetLowering::LowerFRAME_TO_ARGS_OFFSET(SDOperand Op, diff --git a/test/CodeGen/X86/x86-64-frameaddr.ll b/test/CodeGen/X86/x86-64-frameaddr.ll new file mode 100644 index 0000000000..86a238f6ab --- /dev/null +++ b/test/CodeGen/X86/x86-64-frameaddr.ll @@ -0,0 +1,11 @@ +; RUN: llvm-as < %s | llc -march=x86-64 | grep {leaq -8(%rsp), %rax} +@llvm.noinline = appending global [1 x i8*] [ i8* bitcast (i64* ()* @stack_end_address to i8*) ], section "llvm.metadata" + +define internal i64* @stack_end_address() nounwind { +entry: + tail call i8* @llvm.frameaddress( i32 0 ) + bitcast i8* %0 to i64* + ret i64* %1 +} + +declare i8* @llvm.frameaddress(i32) nounwind readnone |