xref: /llvm-project/llvm/test/CodeGen/Thumb/umulo-32-legalisation-lowering.ll (revision 3813fe0bda83f40355c23298c3ca887c51ce3b22)
1; RUN: llc < %s -mtriple=thumb-eabi   | FileCheck %s --check-prefixes CHECK,CHECK-LITTLE
2; RUN: llc < %s -mtriple=thumbeb-eabi | FileCheck %s --check-prefixes CHECK,CHECK-BIG
3
4define i1 @umulo32(i32 %l, i32 %r) unnamed_addr #0 {
5; CHECK-LABEL: umulo32:
6; CHECK:                @ %bb.0: @ %start
7; CHECK-NEXT:           .save {r7, lr}
8; CHECK-NEXT:           push {r7, lr}
9; CHECK-LITTLE-NEXT:    movs r2, r1
10; CHECK-LITTLE-NEXT:    movs r1, #0
11; CHECK-NEXT:           movs r3, r1
12; CHECK-BIG-NEXT:       movs r1, r0
13; CHECK-BIG-NEXT:       movs r0, #0
14; CHECK-BIG-NEXT:       movs r2, r0
15; CHECK-NEXT:           bl __aeabi_lmul
16; CHECK-LITTLE-NEXT:    movs r0, r1
17; CHECK-LITTLE-NEXT:    subs r1, r1, #1
18; CHECK-BIG-NEXT:       subs r1, r0, #1
19; CHECK-NEXT:           sbcs r0, r1
20; CHECK-NEXT:           pop {r7}
21; CHECK-NEXT:           pop {r1}
22; CHECK-NEXT:           bx r1
23start:
24  %0 = tail call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %l, i32 %r) #2
25  %1 = extractvalue { i32, i1 } %0, 1
26  ret i1 %1
27}
28
29; Function Attrs: nounwind readnone speculatable
30declare { i32, i1 } @llvm.umul.with.overflow.i32(i32, i32) #1
31
32attributes #0 = { nounwind readnone uwtable }
33attributes #1 = { nounwind readnone speculatable }
34attributes #2 = { nounwind }
35