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https://github.com/c64scene-ar/llvm-6502.git
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0f68fbb9e5
-%a + 42 into 42 - %a previously we were emitting: -(%a + 42) This fixes the infinite loop in PR12338. The generated code is still not perfect, though. Will work on that next git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158237 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
576 B
LLVM
25 lines
576 B
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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define void @entry() nounwind {
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entry:
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br label %for.cond
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for.cond:
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%local = phi <1 x i32> [ <i32 0>, %entry ], [ %phi2, %cond.end47 ]
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; CHECK: sub <1 x i32> <i32 92>, %local
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%phi3 = sub <1 x i32> zeroinitializer, %local
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br label %cond.end
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cond.false:
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br label %cond.end
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cond.end:
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%cond = phi <1 x i32> [ %phi3, %for.cond ], [ undef, %cond.false ]
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br label %cond.end47
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cond.end47:
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%sum = add <1 x i32> %cond, <i32 92>
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%phi2 = sub <1 x i32> zeroinitializer, %sum
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br label %for.cond
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}
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