• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1; RUN: llc < %s -march=ppc32 -verify-machineinstrs
2
3; Machine code verifier will call isRegTiedToDefOperand() on /all/ register use
4; operands.  We must make sure that the operand flag is found correctly.
5
6; This test case is actually not specific to PowerPC, but the (imm, reg) format
7; of PowerPC "m" operands trigger this bug.
8
9define void @memory_asm_operand(i32 %a) {
10  ; "m" operand will be represented as:
11  ; INLINEASM <es:fake $0>, 10, %R2, 20, -4, %R1
12  ; It is difficult to find the flag operand (20) when starting from %R1
13  call i32 asm "lbzx $0, $1", "=r,m" (i32 %a)
14  ret void
15}
16
17