1; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 -no-integrated-as 2; 3; Check that TwoAddressInstructionPass does not crash after sinking (and 4; revisiting) an instruction that was lowered by TII->convertToThreeAddress() 5; which contains a %noreg operand. 6 7define i32 @f23(i32 %old) { 8 %and1 = and i32 %old, 14 9 %and2 = and i32 %old, 254 10 %res1 = call i32 asm "stepa $1, $2, $3", "=h,r,r,0"(i32 %old, i32 %and1, i32 %and2) 11 %and3 = and i32 %res1, 127 12 %and4 = and i32 %res1, 128 13 %res2 = call i32 asm "stepb $1, $2, $3", "=r,h,h,0"(i32 %res1, i32 %and3, i32 %and4) 14 ret i32 %res2 15} 16