forked from OSchip/llvm-project
81 lines
1.9 KiB
LLVM
81 lines
1.9 KiB
LLVM
; RUN: opt %loadPolly -polly-optree -analyze < %s | FileCheck %s -match-full-lines
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;
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; Synthesizable values defined outside of a loop can be used
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; inside the loop.
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;
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; for (int j = 0; j < n; j += 1) {
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; bodyA:
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; double val = j;
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;
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; for (int i = 0; i < n; i += 1) {
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; bodyB:
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; A[0] = val;
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; }
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; }
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;
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define void @func(i32 %n, double* noalias nonnull %A) {
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entry:
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br label %for
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for:
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%j = phi i32 [0, %entry], [%j.inc, %inc]
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%j.cmp = icmp slt i32 %j, %n
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br i1 %j.cmp, label %bodyA, label %exit
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bodyA:
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%val = sitofp i32 %j to double
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br label %inner.for
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inner.for:
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%i = phi i32 [0, %bodyA], [%i.inc, %inner.inc]
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%i.cmp = icmp slt i32 %i, %n
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br i1 %i.cmp, label %bodyB, label %inner.exit
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bodyB:
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store double %val, double* %A
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br label %inner.inc
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inner.inc:
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%i.inc = add nuw nsw i32 %i, 1
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br label %inner.for
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inner.exit:
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br label %inc
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inc:
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%j.inc = add nuw nsw i32 %j, 1
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br label %for
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exit:
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br label %return
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return:
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ret void
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}
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; CHECK: Statistics {
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; CHECK: Instructions copied: 1
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; CHECK: Operand trees forwarded: 1
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; CHECK: Statements with forwarded operand trees: 1
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; CHECK: }
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; CHECK: After statements {
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; CHECK-NEXT: Stmt_bodyA
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: [n] -> { Stmt_bodyA[i0] -> MemRef_val[] };
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; CHECK-NEXT: Instructions {
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; CHECK-NEXT: %val = sitofp i32 %j to double
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; CHECK-NEXT: }
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; CHECK-NEXT: Stmt_bodyB
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: [n] -> { Stmt_bodyB[i0, i1] -> MemRef_A[0] };
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; CHECK-NEXT: Instructions {
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; CHECK-NEXT: %val = sitofp i32 %j to double
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; CHECK-NEXT: store double %val, double* %A, align 8
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; CHECK-NEXT: }
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; CHECK-NEXT: }
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