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- ; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
- target datalayout = "e-p:64:64:64-p1:16:16:16-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"
- target triple = "x86_64-unknown-linux-gnu"
- @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
- @foo.a_as1 = internal addrspace(1) constant [8 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7], align 16
- define i32 @foo() nounwind uwtable noinline {
- entry:
- br label %for.cond
- for.cond: ; preds = %for.inc, %entry
- %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ]
- ; CHECK: --> %sum.0{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 28
- %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
- %cmp = icmp ult i32 %i.0, 8
- br i1 %cmp, label %for.inc, label %for.end
- for.inc: ; preds = %for.cond
- %idxprom = sext i32 %i.0 to i64
- %arrayidx = getelementptr inbounds [8 x i32], [8 x i32]* @foo.a, i64 0, i64 %idxprom
- %0 = load i32, i32* %arrayidx, align 4
- %add = add nsw i32 %sum.0, %0
- %inc = add nsw i32 %i.0, 1
- br label %for.cond
- for.end: ; preds = %for.cond
- ret i32 %sum.0
- }
- define i32 @foo_as1() nounwind uwtable noinline {
- entry:
- br label %for.cond
- for.cond: ; preds = %for.inc, %entry
- %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ]
- ; CHECK: --> %sum.0{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 28
- %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
- %cmp = icmp ult i32 %i.0, 8
- br i1 %cmp, label %for.inc, label %for.end
- for.inc: ; preds = %for.cond
- %idxprom = sext i32 %i.0 to i64
- %arrayidx = getelementptr inbounds [8 x i32], [8 x i32] addrspace(1)* @foo.a_as1, i64 0, i64 %idxprom
- %0 = load i32, i32 addrspace(1)* %arrayidx, align 4
- %add = add nsw i32 %sum.0, %0
- %inc = add nsw i32 %i.0, 1
- br label %for.cond
- for.end: ; preds = %for.cond
- ret i32 %sum.0
- }
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