forked from OSchip/llvm-project
59 lines
1.8 KiB
LLVM
59 lines
1.8 KiB
LLVM
; RUN: opt %loadPolly -basicaa -polly-dependences -analyze < %s | FileCheck %s
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;
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; Verify we do not have dependences between the if and the else clause
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;
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; CHECK: RAW dependences:
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; CHECK-NEXT: { }
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; CHECK-NEXT: WAR dependences:
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; CHECK-NEXT: { }
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; CHECK-NEXT: WAW dependences:
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; CHECK-NEXT: { }
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; CHECK-NEXT: Reduction dependences:
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; CHECK-NEXT: { Stmt_if_then[i0] -> Stmt_if_then[1 + i0] : 0 <= i0 <= 510; Stmt_if_else[i0] -> Stmt_if_else[1 + i0] : 512 <= i0 <= 1022 }
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;
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; void f(int *restrict sum, int *restrict prod) {
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; for (int i = 0; i < 1024; i++)
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; if (i < 512)
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; *sum += i;
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; else
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; *prod *= i;
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; }
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;
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
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define void @f(i32* noalias %sum, i32* noalias %prod) {
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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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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
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%exitcond = icmp ne i32 %i.0, 1024
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br i1 %exitcond, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%cmp1 = icmp slt i32 %i.0, 512
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br i1 %cmp1, label %if.then, label %if.else
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if.then: ; preds = %for.body
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%tmp = load i32, i32* %sum, align 4
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%add = add nsw i32 %tmp, %i.0
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store i32 %add, i32* %sum, align 4
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br label %if.end
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if.else: ; preds = %for.body
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%tmp1 = load i32, i32* %prod, align 4
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%mul = mul nsw i32 %tmp1, %i.0
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store i32 %mul, i32* %prod, align 4
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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br label %for.inc
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for.inc: ; preds = %if.end
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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 void
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}
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