mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
73bc91a5e6
This reverts commit bda6e5bee04c75b1f1332b4fd1ac4e8ef6c3c247. See https://lab.llvm.org/buildbot/#/builders/109/builds/15424 for instance
157 lines
4.3 KiB
LLVM
157 lines
4.3 KiB
LLVM
; RUN: opt -O3 -S < %s | FileCheck %s
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; Confirm that we do not create assumes, clone them,
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; and then cause a compile-time explosion trying to
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; simplify them all. Ie, this can become nearly an
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; infinite-loop if things go bad.
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; https://llvm.org/PR49785
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target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx11.0.0"
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@e = global i16 0, align 2
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@a = global i32 0, align 4
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@c = global i32 0, align 4
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@b = global i32 0, align 4
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@d = global i32 0, align 4
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; Not checking complete IR because it could be very
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; large with vectorization and unrolling (thousands
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; of lines of IR).
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define void @f() #0 {
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; CHECK-LABEL: @f(
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;
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entry:
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store i32 5, i32* @c, align 4, !tbaa !3
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br label %for.cond
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for.cond:
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%0 = load i32, i32* @c, align 4, !tbaa !3
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%cmp = icmp sle i32 %0, 63
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br i1 %cmp, label %for.body, label %for.end34
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for.body:
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store i16 9, i16* @e, align 2, !tbaa !7
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br label %for.cond1
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for.cond1:
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%1 = load i16, i16* @e, align 2, !tbaa !7
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%conv = zext i16 %1 to i32
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%cmp2 = icmp sle i32 %conv, 60
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br i1 %cmp2, label %for.body4, label %for.end32
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for.body4:
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%2 = load i16, i16* @e, align 2, !tbaa !7
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%conv5 = zext i16 %2 to i32
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%3 = load i32, i32* @b, align 4, !tbaa !3
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%xor = xor i32 %conv5, %3
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%4 = load i32, i32* @d, align 4, !tbaa !3
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%cmp6 = icmp ne i32 %xor, %4
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br i1 %cmp6, label %if.then, label %if.end27
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if.then:
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%5 = load i32, i32* @a, align 4, !tbaa !3
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%conv8 = sext i32 %5 to i64
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%6 = inttoptr i64 %conv8 to i8*
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store i8 3, i8* %6, align 1, !tbaa !9
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br label %for.cond9
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for.cond9:
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%7 = load i8, i8* %6, align 1, !tbaa !9
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%conv10 = sext i8 %7 to i32
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%cmp11 = icmp sle i32 %conv10, 32
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br i1 %cmp11, label %for.body13, label %for.end26
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for.body13:
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%8 = load i8, i8* %6, align 1, !tbaa !9
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%tobool = icmp ne i8 %8, 0
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br i1 %tobool, label %if.then14, label %if.end
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if.then14:
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store i8 1, i8* bitcast (i32* @a to i8*), align 1, !tbaa !9
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br label %for.cond15
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for.cond15:
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%9 = load i8, i8* bitcast (i32* @a to i8*), align 1, !tbaa !9
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%conv16 = sext i8 %9 to i32
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%cmp17 = icmp sle i32 %conv16, 30
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br i1 %cmp17, label %for.body19, label %for.end
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for.body19:
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%10 = load i32, i32* @c, align 4, !tbaa !3
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%cmp20 = icmp eq i32 0, %10
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%conv21 = zext i1 %cmp20 to i32
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%11 = load i8, i8* bitcast (i32* @a to i8*), align 1, !tbaa !9
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%conv22 = sext i8 %11 to i32
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%and = and i32 %conv22, %conv21
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%conv23 = trunc i32 %and to i8
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store i8 %conv23, i8* bitcast (i32* @a to i8*), align 1, !tbaa !9
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br label %for.cond15, !llvm.loop !10
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for.end:
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br label %if.end
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if.end:
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br label %for.inc
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for.inc:
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%12 = load i8, i8* %6, align 1, !tbaa !9
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%conv24 = sext i8 %12 to i32
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%add = add nsw i32 %conv24, 1
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%conv25 = trunc i32 %add to i8
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store i8 %conv25, i8* %6, align 1, !tbaa !9
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br label %for.cond9, !llvm.loop !12
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for.end26:
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br label %if.end27
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if.end27:
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br label %for.inc28
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for.inc28:
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%13 = load i16, i16* @e, align 2, !tbaa !7
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%conv29 = zext i16 %13 to i32
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%add30 = add nsw i32 %conv29, 1
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%conv31 = trunc i32 %add30 to i16
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store i16 %conv31, i16* @e, align 2, !tbaa !7
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br label %for.cond1, !llvm.loop !13
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for.end32:
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br label %for.inc33
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for.inc33:
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%14 = load i32, i32* @c, align 4, !tbaa !3
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%inc = add nsw i32 %14, 1
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store i32 %inc, i32* @c, align 4, !tbaa !3
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br label %for.cond, !llvm.loop !14
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for.end34:
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ret void
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}
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declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1
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declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1
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attributes #0 = { nounwind ssp uwtable "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+cx8,+fxsr,+mmx,+sahf,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "tune-cpu"="generic" }
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attributes #1 = { argmemonly nofree nosync nounwind willreturn }
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!llvm.module.flags = !{!0, !1}
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!llvm.ident = !{!2}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 7, !"PIC Level", i32 2}
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!2 = !{!"clang version 13.0.0 (https://github.com/llvm/llvm-project.git 7a4abc07dd8f1d8217e482ebbf438197c1aea7f0)"}
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!3 = !{!4, !4, i64 0}
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!4 = !{!"int", !5, i64 0}
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!5 = !{!"omnipotent char", !6, i64 0}
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!6 = !{!"Simple C/C++ TBAA"}
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!7 = !{!8, !8, i64 0}
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!8 = !{!"short", !5, i64 0}
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!9 = !{!5, !5, i64 0}
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!10 = distinct !{!10, !11}
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!11 = !{!"llvm.loop.mustprogress"}
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!12 = distinct !{!12, !11}
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!13 = distinct !{!13, !11}
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!14 = distinct !{!14, !11}
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