forked from OSchip/llvm-project
48 lines
1.5 KiB
LLVM
48 lines
1.5 KiB
LLVM
; RUN: opt %loadPolly -polly-opt-isl -polly-pragma-based-opts=1 -analyze < %s | FileCheck %s --match-full-lines
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; RUN: opt %loadPolly -polly-opt-isl -polly-pragma-based-opts=0 -analyze < %s | FileCheck %s --check-prefix=OFF --match-full-lines
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;
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; Partial unroll by a factor of 4.
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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 %body, label %exit
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body:
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store double 42.0, double* %A
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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, !llvm.loop !2
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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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!2 = distinct !{!2, !5}
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!5 = !{!"llvm.loop.unroll.count", i4 4}
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; CHECK-LABEL: Printing analysis 'Polly - Optimize schedule of SCoP' for region: 'for => return' in function 'func':
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; CHECK: domain: "[n] -> { Stmt_body[i0] : 0 <= i0 < n }"
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; CHECK: schedule: "[n] -> [{ Stmt_body[i0] -> [(i0 - (i0) mod 4)] }]"
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; CHECK: sequence:
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; CHECK-NEXT: - filter: "[n] -> { Stmt_body[i0] : (i0) mod 4 = 0 }"
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; CHECK-NEXT: - filter: "[n] -> { Stmt_body[i0] : (-1 + i0) mod 4 = 0 }"
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; CHECK-NEXT: - filter: "[n] -> { Stmt_body[i0] : (2 + i0) mod 4 = 0 }"
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; CHECK-NEXT: - filter: "[n] -> { Stmt_body[i0] : (1 + i0) mod 4 = 0 }"
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; OFF-LABEL: Printing analysis 'Polly - Optimize schedule of SCoP' for region: 'for => return' in function 'func':
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; OFF-NEXT: Calculated schedule:
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; OFF-NEXT: n/a
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