forked from OSchip/llvm-project
35 lines
752 B
LLVM
35 lines
752 B
LLVM
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; RUN: opt < %s -loop-reduce -S | FileCheck %s
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@d = common global i32 0, align 4
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define void @fn2(i32 %x) nounwind uwtable {
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entry:
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br label %for.cond
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for.cond:
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%g.0 = phi i32 [ 0, %entry ], [ %dec, %for.cond ]
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%tobool = icmp eq i32 %x, 0
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%dec = add nsw i32 %g.0, -1
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br i1 %tobool, label %for.cond, label %for.end
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for.end:
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; CHECK: %tmp1 = load i32* @d, align 4
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; CHECK-NEXT: %tmp2 = load i32* @d, align 4
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; CHECK-NEXT: %0 = sub i32 %tmp1, %tmp2
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%tmp1 = load i32* @d, align 4
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%add = add nsw i32 %tmp1, %g.0
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%tmp2 = load i32* @d, align 4
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%tobool26 = icmp eq i32 %x, 0
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br i1 %tobool26, label %for.end5, label %for.body.lr.ph
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for.body.lr.ph:
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%tobool3 = icmp ne i32 %tmp2, %add
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br label %for.end5
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for.end5:
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ret void
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}
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