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https://github.com/Gericom/teak-llvm.git
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9bdf515c74
This patch adds #pragma clang loop pipeline and #pragma clang loop pipeline_initiation_interval for debugging or reducing compile time purposes. It is possible to disable SWP for concrete loops to save compilation time or to find bugs by not doing SWP to certain loops. It is possible to set value of initiation interval to concrete number to save compilation time by not doing extra pipeliner passes or to check created schedule for specific initiation interval. Patch by Alexey Lapshin. llvm-svn: 350414
79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
// RUN: %clang_cc1 -std=c++11 -verify %s
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// Note that this puts the expected lines before the directives to work around
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// limitations in the -verify mode.
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void test(int *List, int Length, int Value) {
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int i = 0;
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#pragma unroll_and_jam
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for (int i = 0; i < Length; i++) {
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for (int j = 0; j < Length; j++) {
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List[i * Length + j] = Value;
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}
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}
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#pragma nounroll_and_jam
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for (int i = 0; i < Length; i++) {
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for (int j = 0; j < Length; j++) {
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List[i * Length + j] = Value;
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}
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}
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#pragma unroll_and_jam 4
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for (int i = 0; i < Length; i++) {
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for (int j = 0; j < Length; j++) {
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List[i * Length + j] = Value;
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}
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}
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/* expected-error {{expected ')'}} */ #pragma unroll_and_jam(4
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/* expected-error {{missing argument; expected an integer value}} */ #pragma unroll_and_jam()
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/* expected-warning {{extra tokens at end of '#pragma unroll_and_jam'}} */ #pragma unroll_and_jam 1 2
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for (int i = 0; i < Length; i++) {
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for (int j = 0; j < Length; j++) {
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List[i * Length + j] = Value;
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}
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}
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/* expected-warning {{extra tokens at end of '#pragma nounroll_and_jam'}} */ #pragma nounroll_and_jam 1
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for (int i = 0; i < Length; i++) {
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for (int j = 0; j < Length; j++) {
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List[i * Length + j] = Value;
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}
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}
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#pragma unroll_and_jam
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/* expected-error {{expected a for, while, or do-while loop to follow '#pragma unroll_and_jam'}} */ int j = Length;
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#pragma unroll_and_jam 4
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/* expected-error {{expected a for, while, or do-while loop to follow '#pragma unroll_and_jam'}} */ int k = Length;
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#pragma nounroll_and_jam
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/* expected-error {{expected a for, while, or do-while loop to follow '#pragma nounroll_and_jam'}} */ int l = Length;
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#pragma unroll_and_jam 4
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/* expected-error {{incompatible directives '#pragma nounroll_and_jam' and '#pragma unroll_and_jam(4)'}} */ #pragma nounroll_and_jam
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for (int i = 0; i < Length; i++) {
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for (int j = 0; j < Length; j++) {
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List[i * Length + j] = Value;
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}
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}
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#pragma nounroll_and_jam
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#pragma unroll(4)
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for (int i = 0; i < Length; i++) {
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for (int j = 0; j < Length; j++) {
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List[i * Length + j] = Value;
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}
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}
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// pragma clang unroll_and_jam is disabled for the moment
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/* expected-error {{invalid option 'unroll_and_jam'; expected vectorize, vectorize_width, interleave, interleave_count, unroll, unroll_count, pipeline, pipeline_initiation_interval, or distribute}} */ #pragma clang loop unroll_and_jam(4)
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for (int i = 0; i < Length; i++) {
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for (int j = 0; j < Length; j++) {
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List[i * Length + j] = Value;
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}
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}
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#pragma unroll_and_jam
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/* expected-error {{expected statement}} */ }
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