forked from OSchip/llvm-project
4f6bceface
We now generate tile loops as:
for (int c1 = 0; c1 <= 47; c1 += 1)
for (int c2 = 0; c2 <= 47; c2 += 1)
for (int c3 = 0; c3 <= 31; c3 += 1)
for (int c4 = 0; c4 <= 31; c4 += 4)
#pragma simd
for (int c5 = c4; c5 <= c4 + 3; c5 += 1)
Stmt_for_body3(32 * c1 + c3, 32 * c2 + c5);
instead of
for (int c1 = 0; c1 <= 1535; c1 += 32)
for (int c2 = 0; c2 <= 1535; c2 += 32)
for (int c3 = 0; c3 <= 31; c3 += 1)
for (int c4 = 0; c4 <= 31; c4 += 4)
#pragma simd
for (int c5 = c4; c5 <= c4 + 3; c5 += 1)
Stmt_for_body3(c1 + c3, c2 + c5);
Run-time performance-wise this makes little difference, but this gives a large
reduction in compile time (10-30% on 17 LNT benchmarks). Apparently the isl
AST generator is not yet very efficient in generating the latter.
llvm-svn: 233675
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|---|---|---|
| .. | ||
| CodePreparation | ||
| DeadCodeElimination | ||
| DependenceInfo | ||
| IndependentBlocks | ||
| Isl | ||
| ScheduleOptimizer | ||
| ScopDetect | ||
| ScopDetectionDiagnostics | ||
| ScopInfo | ||
| TempScop | ||
| CMakeLists.txt | ||
| Makefile | ||
| README | ||
| create_ll.sh | ||
| lit.cfg | ||
| lit.site.cfg.in | ||
| polly.ll | ||
README
place tests here