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https://github.com/c64scene-ar/llvm-6502.git
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edb5842b7c
the safety check to look for the same type we're going to actually cast to. Fixes PR13180! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159110 91177308-0d34-0410-b5e6-96231b3b80d8
71 lines
1.7 KiB
LLVM
71 lines
1.7 KiB
LLVM
; RUN: opt < %s -simplifycfg -S | FileCheck %s
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define void @test(i32* %P, i32* %Q, i1 %A, i1 %B) {
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; CHECK: test
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; CHECK: br i1
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; CHECK-NOT: br i1
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; CHECK: ret
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; CHECK: ret
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entry:
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br i1 %A, label %a, label %b
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a:
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br i1 %B, label %b, label %c
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b:
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store i32 123, i32* %P
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ret void
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c:
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ret void
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}
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; rdar://10554090
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define zeroext i1 @test2(i64 %i0, i64 %i1) nounwind uwtable readonly ssp {
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entry:
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; CHECK: test2
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; CHECK: br i1
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%and.i.i = and i64 %i0, 281474976710655
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%and.i11.i = and i64 %i1, 281474976710655
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%or.cond = icmp eq i64 %and.i.i, %and.i11.i
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br i1 %or.cond, label %c, label %a
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a:
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; CHECK: br
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%shr.i4.i = lshr i64 %i0, 48
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%and.i5.i = and i64 %shr.i4.i, 32767
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%shr.i.i = lshr i64 %i1, 48
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%and.i2.i = and i64 %shr.i.i, 32767
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%cmp9.i = icmp ult i64 %and.i5.i, %and.i2.i
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br i1 %cmp9.i, label %c, label %b
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b:
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; CHECK-NOT: br
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%shr.i13.i9 = lshr i64 %i1, 48
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%and.i14.i10 = and i64 %shr.i13.i9, 32767
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%shr.i.i11 = lshr i64 %i0, 48
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%and.i11.i12 = and i64 %shr.i.i11, 32767
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%phitmp = icmp uge i64 %and.i14.i10, %and.i11.i12
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br label %c
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c:
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%o2 = phi i1 [ false, %a ], [ %phitmp, %b ], [ false, %entry ]
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ret i1 %o2
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}
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; PR13180
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define void @pr13180(i8 %p) {
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entry:
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%tobool = icmp eq i8 %p, 0
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br i1 %tobool, label %cond.false, label %cond.true
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cond.true: ; preds = %entry
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br label %cond.end
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cond.false: ; preds = %entry
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%phitmp = icmp eq i8 %p, 0
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br label %cond.end
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cond.end: ; preds = %cond.false, %cond.true
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%cond = phi i1 [ undef, %cond.true ], [ %phitmp, %cond.false ]
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unreachable
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}
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