diff options
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 +} + |
