llvm/test/CodeGen/PowerPC/2009-07-16-InlineAsm-M-Operand.ll
2009-09-09 00:09:15 +00:00

17 lines
595 B
LLVM

; 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
}