forked from OSchip/llvm-project
79 lines
2.1 KiB
LLVM
79 lines
2.1 KiB
LLVM
; RUN: opt %loadPolly -polly-optree -analyze < %s | FileCheck %s -match-full-lines
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;
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; Move instructions from region statements.
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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 = 21.0 + 21.0;
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; if (cond)
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;
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; bodyA_true:
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; A[0] = 42;
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;
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; bodyB:
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; A[0] = val;
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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 = fadd double 21.0, 21.0
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%cond = fcmp oeq double 21.0, 21.0
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br i1 %cond, label %bodyA_true, label %bodyB
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bodyA_true:
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store double 42.0, double* %A
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br label %bodyB
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bodyB:
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store double %val, double* %A
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br label %bodyB_exit
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bodyB_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: Known loads forwarded: 0
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; CHECK: Read-only accesses copied: 0
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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: Stmt_bodyA__TO__bodyB
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; CHECK: MayWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK: [n] -> { Stmt_bodyA__TO__bodyB[i0] -> MemRef_A[0] };
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; CHECK: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK: [n] -> { Stmt_bodyA__TO__bodyB[i0] -> MemRef_val[] };
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; CHECK: Instructions {
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; CHECK: %val = fadd double 2.100000e+01, 2.100000e+01
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; CHECK: %cond = fcmp oeq double 2.100000e+01, 2.100000e+01
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; CHECK: }
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; CHECK: Stmt_bodyB
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; CHECK: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK: [n] -> { Stmt_bodyB[i0] -> MemRef_A[0] };
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; CHECK: Instructions {
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; CHECK: %val = fadd double 2.100000e+01, 2.100000e+01
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; CHECK: store double %val, double* %A, align 8
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; CHECK: }
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; CHECK: }
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