You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1.3 KiB
42 lines
1.3 KiB
4 months ago
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
||
|
|
; RUN: llc -mtriple=thumbv6-linux-gnueabi < %s | FileCheck %s
|
||
|
|
|
||
|
|
; After various DAGCombine optimizations, we end up with an sbcs with
|
||
|
|
; multiple uses of the cpsr def, and we therefore clone the subs/sbcs.
|
||
|
|
; Make sure this doesn't crash.
|
||
|
|
;
|
||
|
|
; The output here might change at some point in the future, and no
|
||
|
|
; longer clone the operations; if that happens, there probably isn't any
|
||
|
|
; straightforward way to fix the test.
|
||
|
|
define i64 @f(i64 %x2, i32 %z) {
|
||
|
|
; CHECK-LABEL: f:
|
||
|
|
; CHECK: @ %bb.0:
|
||
|
|
; CHECK-NEXT: .save {r4, r5, r7, lr}
|
||
|
|
; CHECK-NEXT: push {r4, r5, r7, lr}
|
||
|
|
; CHECK-NEXT: movs r2, #0
|
||
|
|
; CHECK-NEXT: subs r3, r0, #1
|
||
|
|
; CHECK-NEXT: mov r3, r1
|
||
|
|
; CHECK-NEXT: sbcs r3, r2
|
||
|
|
; CHECK-NEXT: mov r3, r2
|
||
|
|
; CHECK-NEXT: adcs r3, r2
|
||
|
|
; CHECK-NEXT: movs r4, #30
|
||
|
|
; CHECK-NEXT: subs r5, r0, #1
|
||
|
|
; CHECK-NEXT: mov r5, r1
|
||
|
|
; CHECK-NEXT: sbcs r5, r2
|
||
|
|
; CHECK-NEXT: adcs r4, r2
|
||
|
|
; CHECK-NEXT: lsls r2, r1, #1
|
||
|
|
; CHECK-NEXT: lsls r2, r4
|
||
|
|
; CHECK-NEXT: movs r4, #1
|
||
|
|
; CHECK-NEXT: eors r4, r3
|
||
|
|
; CHECK-NEXT: lsrs r0, r4
|
||
|
|
; CHECK-NEXT: orrs r0, r2
|
||
|
|
; CHECK-NEXT: lsrs r1, r4
|
||
|
|
; CHECK-NEXT: pop {r4, r5, r7, pc}
|
||
|
|
%x3 = add nsw i64 %x2, -1
|
||
|
|
%x8 = icmp ne i64 %x2, 0
|
||
|
|
%x9 = xor i1 %x8, true
|
||
|
|
%x10 = zext i1 %x9 to i64
|
||
|
|
%x11 = lshr i64 %x2, %x10
|
||
|
|
ret i64 %x11
|
||
|
|
}
|