xref: /llvm-project/llvm/test/CodeGen/X86/2009-04-12-FastIselOverflowCrash.ll (revision 4f4bffec123cbdfea111403b68226c0e6be5ea3c)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; radr://6772169
3; RUN: llc < %s -fast-isel | FileCheck %s --check-prefix=FASTISEL
4; PR30981
5; RUN: llc < %s -O0 -mcpu=x86-64 -mattr=+avx512f | FileCheck %s --check-prefix=AVX512F
6target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
7target triple = "x86_64-apple-darwin10"
8
9declare { i32, i1 } @llvm.sadd.with.overflow.i32(i32, i32) nounwind
10
11define fastcc i32 @test() nounwind {
12; FASTISEL-LABEL: test:
13; FASTISEL:       ## %bb.0: ## %entry
14; FASTISEL-NEXT:    movl $1, %eax
15; FASTISEL-NEXT:    addl $0, %eax
16; FASTISEL-NEXT:    xorl %eax, %eax
17; FASTISEL-NEXT:    retq
18;
19; AVX512F-LABEL: test:
20; AVX512F:       ## %bb.0: ## %entry
21; AVX512F-NEXT:    movl $1, %eax
22; AVX512F-NEXT:    addl $0, %eax
23; AVX512F-NEXT:    seto %al
24; AVX512F-NEXT:    jo LBB0_2
25; AVX512F-NEXT:  ## %bb.1: ## %BB3
26; AVX512F-NEXT:  LBB0_2: ## %.backedge
27; AVX512F-NEXT:    xorl %eax, %eax
28; AVX512F-NEXT:    retq
29entry:
30	%tmp1 = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 1, i32 0)
31	%tmp2 = extractvalue { i32, i1 } %tmp1, 1
32	br i1 %tmp2, label %.backedge, label %BB3
33
34BB3:
35	%tmp4 = extractvalue { i32, i1 } %tmp1, 0
36	br label %.backedge
37
38.backedge:
39	ret i32 0
40}
41