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| author | Shih-wei Liao <sliao@google.com> | 2010-02-10 11:10:31 -0800 |
|---|---|---|
| committer | Shih-wei Liao <sliao@google.com> | 2010-02-10 11:10:31 -0800 |
| commit | e264f62ca09a8f65c87a46d562a4d0f9ec5d457e (patch) | |
| tree | 59e3d57ef656cef79afa708ae0a3daf25cd91fcf /test/CodeGen/PowerPC/2009-07-16-InlineAsm-M-Operand.ll | |
| download | external_llvm-e264f62ca09a8f65c87a46d562a4d0f9ec5d457e.zip external_llvm-e264f62ca09a8f65c87a46d562a4d0f9ec5d457e.tar.gz external_llvm-e264f62ca09a8f65c87a46d562a4d0f9ec5d457e.tar.bz2 | |
Check in LLVM r95781.
Diffstat (limited to 'test/CodeGen/PowerPC/2009-07-16-InlineAsm-M-Operand.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/2009-07-16-InlineAsm-M-Operand.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/2009-07-16-InlineAsm-M-Operand.ll b/test/CodeGen/PowerPC/2009-07-16-InlineAsm-M-Operand.ll new file mode 100644 index 0000000..f64e3dc --- /dev/null +++ b/test/CodeGen/PowerPC/2009-07-16-InlineAsm-M-Operand.ll @@ -0,0 +1,16 @@ +; RUN: llc < %s -march=ppc32 -verify-machineinstrs + +; Machine code verifier will call isRegTiedToDefOperand() on /all/ register use +; operands. We must make sure that the operand flag is found correctly. + +; This test case is actually not specific to PowerPC, but the (imm, reg) format +; of PowerPC "m" operands trigger this bug. + +define void @memory_asm_operand(i32 %a) { + ; "m" operand will be represented as: + ; INLINEASM <es:fake $0>, 10, %R2, 20, -4, %R1 + ; It is difficult to find the flag operand (20) when starting from %R1 + call i32 asm "lbzx $0, $1", "=r,m" (i32 %a) + ret void +} + |