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https://github.com/c64scene-ar/llvm-6502.git
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076e085698
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89116 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
990 B
LLVM
28 lines
990 B
LLVM
; RUN: opt < %s -loop-reduce -S | FileCheck %s
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define i32 @main(i32 %argc, i8** nocapture %argv) nounwind ssp {
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entry:
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br i1 undef, label %bb4.preheader, label %bb.nph8
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bb4.preheader: ; preds = %entry
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br label %bb4
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bb1: ; preds = %bb4
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br i1 undef, label %bb.nph8, label %bb3
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bb3: ; preds = %bb1
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%phitmp = add i32 %indvar, 1 ; <i32> [#uses=1]
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br label %bb4
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bb4: ; preds = %bb3, %bb4.preheader
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; CHECK: %lsr.iv = phi
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; CHECK: %lsr.iv.next = add i32 %lsr.iv, 1
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; CHECK: %0 = icmp slt i32 %lsr.iv.next, %argc
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%indvar = phi i32 [ 1, %bb4.preheader ], [ %phitmp, %bb3 ] ; <i32> [#uses=2]
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%0 = icmp slt i32 %indvar, %argc ; <i1> [#uses=1]
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br i1 %0, label %bb1, label %bb.nph8
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bb.nph8: ; preds = %bb4, %bb1, %entry
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unreachable
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}
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