test/CodeGen/Thumb2/thumb2-sub5.ll


1
2
3
4
5
6
7
8
9
10

; RUN: llc < %s -march=thumb -mattr=+thumb2 -mattr=+32bit | FileCheck %s

define i64 @f1(i64 %a, i64 %b) {
; CHECK: f1:
; CHECK: subs.w r0, r0, r2
; To test dead_carry, +32bit prevents sbc conveting to 16-bit sbcs
; CHECK: sbc.w  r1, r1, r3
    %tmp = sub i64 %a, %b
    ret i64 %tmp
}