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https://github.com/c64scene-ar/llvm-6502.git
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39 lines
1.2 KiB
LLVM
39 lines
1.2 KiB
LLVM
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; RUN: opt < %s -indvars -S -enable-iv-rewrite=true | FileCheck %s
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;
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; PR11279: Assertion !IVLimit->getType()->isPointerTy()
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;
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; Test a non-integer BECount. It doesn't make sense, but that's what
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; falls out of SCEV. Since it's an i8*, we never adjust in a way that
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; would convert it to an integer type.
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;
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; enable-iv-rewrite=false does not currently perform LFTR when the the
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; taken count is a pointer expression, but that will change son.
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target 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-n8:16:32:64"
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target triple = "x86_64-apple-darwin"
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; CHECK: @test8
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; CHECK: loop:
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; CHECK: icmp ne
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define i8 @test8(i8* %buf, i8* %end) nounwind {
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br label %loopguard
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loopguard:
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%guard = icmp ult i8* %buf, %end
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br i1 %guard, label %preheader, label %exit
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preheader:
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br label %loop
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loop:
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%p.01.us.us = phi i8* [ %buf, %preheader ], [ %gep, %loop ]
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%s = phi i8 [0, %preheader], [%snext, %loop]
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%gep = getelementptr inbounds i8* %p.01.us.us, i64 1
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%snext = load i8* %gep
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%cmp = icmp ult i8* %gep, %end
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br i1 %cmp, label %loop, label %exit
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exit:
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ret i8 %snext
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}
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