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30 lines
1.1 KiB
LLVM
30 lines
1.1 KiB
LLVM
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; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
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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-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@foo.a = internal constant [8 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7], align 16
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define i32 @foo() nounwind uwtable noinline {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%sum.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ]
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; CHECK: --> %sum.0 Exits: 28
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
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%cmp = icmp ult i32 %i.0, 8
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br i1 %cmp, label %for.inc, label %for.end
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for.inc: ; preds = %for.cond
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%idxprom = sext i32 %i.0 to i64
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%arrayidx = getelementptr inbounds [8 x i32]* @foo.a, i64 0, i64 %idxprom
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%0 = load i32* %arrayidx, align 4
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%add = add nsw i32 %sum.0, %0
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%inc = add nsw i32 %i.0, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret i32 %sum.0
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}
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