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llvm-project/clang/test/CodeGenCXX/pragma-loop-safety-outer.cpp

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[CodeGen] Emit parallel_loop_access for each loop in the loop stack. Summary: Emit !llvm.mem.parallel_loop_access metadata for memory accesses even if the parallel loop is not the top on the loop stack. Fixes llvm.org/PR37558. Reviewers: ABataev, hfinkel, amusman, tyler.nowicki Reviewed By: hfinkel Subscribers: Meinersbur, hfinkel, cfe-commits Differential Revision: https://reviews.llvm.org/D48808 llvm-svn: 338810
2018-08-03 12:42:52 +08:00
// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s
[CodeGen] Generate llvm.loop.parallel_accesses instead of llvm.mem.parallel_loop_access metadata. Instead of generating llvm.mem.parallel_loop_access metadata, generate llvm.access.group on instructions and llvm.loop.parallel_accesses on loops. There is one access group per generated loop. This is clang part of D52116/r349725. Differential Revision: https://reviews.llvm.org/D52117 llvm-svn: 349823
2018-12-21 05:24:54 +08:00
// Verify that the outer loop has the inner loop's access in its
// llvm.loop.parallel_accesses property.
[CodeGen] Emit parallel_loop_access for each loop in the loop stack. Summary: Emit !llvm.mem.parallel_loop_access metadata for memory accesses even if the parallel loop is not the top on the loop stack. Fixes llvm.org/PR37558. Reviewers: ABataev, hfinkel, amusman, tyler.nowicki Reviewed By: hfinkel Subscribers: Meinersbur, hfinkel, cfe-commits Differential Revision: https://reviews.llvm.org/D48808 llvm-svn: 338810
2018-08-03 12:42:52 +08:00
void vectorize_outer_test(int *List, int Length) {
#pragma clang loop vectorize(assume_safety) interleave(disable) unroll(disable)
for (int i = 0; i < Length; i += 2) {
#pragma clang loop unroll(full)
for (int j = 0; j < 2; j += 1)
List[i + j] = (i + j) * 2;
}
}
// CHECK: %[[MUL:.+]] = mul
[CodeGen] Generate llvm.loop.parallel_accesses instead of llvm.mem.parallel_loop_access metadata. Instead of generating llvm.mem.parallel_loop_access metadata, generate llvm.access.group on instructions and llvm.loop.parallel_accesses on loops. There is one access group per generated loop. This is clang part of D52116/r349725. Differential Revision: https://reviews.llvm.org/D52117 llvm-svn: 349823
2018-12-21 05:24:54 +08:00
// CHECK: store i32 %[[MUL]], i32* %{{.+}}, !llvm.access.group ![[ACCESS_GROUP_2:[0-9]+]]
[CodeGen] Emit parallel_loop_access for each loop in the loop stack. Summary: Emit !llvm.mem.parallel_loop_access metadata for memory accesses even if the parallel loop is not the top on the loop stack. Fixes llvm.org/PR37558. Reviewers: ABataev, hfinkel, amusman, tyler.nowicki Reviewed By: hfinkel Subscribers: Meinersbur, hfinkel, cfe-commits Differential Revision: https://reviews.llvm.org/D48808 llvm-svn: 338810
2018-08-03 12:42:52 +08:00
// CHECK: br label %{{.+}}, !llvm.loop ![[INNER_LOOPID:[0-9]+]]
[CodeGen] Generate llvm.loop.parallel_accesses instead of llvm.mem.parallel_loop_access metadata. Instead of generating llvm.mem.parallel_loop_access metadata, generate llvm.access.group on instructions and llvm.loop.parallel_accesses on loops. There is one access group per generated loop. This is clang part of D52116/r349725. Differential Revision: https://reviews.llvm.org/D52117 llvm-svn: 349823
2018-12-21 05:24:54 +08:00
// CHECK: br label %{{.+}}, !llvm.loop ![[OUTER_LOOPID:[0-9]+]]
[CodeGen] Emit parallel_loop_access for each loop in the loop stack. Summary: Emit !llvm.mem.parallel_loop_access metadata for memory accesses even if the parallel loop is not the top on the loop stack. Fixes llvm.org/PR37558. Reviewers: ABataev, hfinkel, amusman, tyler.nowicki Reviewed By: hfinkel Subscribers: Meinersbur, hfinkel, cfe-commits Differential Revision: https://reviews.llvm.org/D48808 llvm-svn: 338810
2018-08-03 12:42:52 +08:00
[CodeGen] Generate llvm.loop.parallel_accesses instead of llvm.mem.parallel_loop_access metadata. Instead of generating llvm.mem.parallel_loop_access metadata, generate llvm.access.group on instructions and llvm.loop.parallel_accesses on loops. There is one access group per generated loop. This is clang part of D52116/r349725. Differential Revision: https://reviews.llvm.org/D52117 llvm-svn: 349823
2018-12-21 05:24:54 +08:00
// CHECK: ![[ACCESS_GROUP_2]] = distinct !{}
[CodeGen] Emit parallel_loop_access for each loop in the loop stack. Summary: Emit !llvm.mem.parallel_loop_access metadata for memory accesses even if the parallel loop is not the top on the loop stack. Fixes llvm.org/PR37558. Reviewers: ABataev, hfinkel, amusman, tyler.nowicki Reviewed By: hfinkel Subscribers: Meinersbur, hfinkel, cfe-commits Differential Revision: https://reviews.llvm.org/D48808 llvm-svn: 338810
2018-08-03 12:42:52 +08:00
// CHECK: ![[INNER_LOOPID]] = distinct !{![[INNER_LOOPID]],
[clang] Add mustprogress and llvm.loop.mustprogress attribute deduction Since C++11, the C++ standard has a forward progress guarantee [intro.progress], so all such functions must have the `mustprogress` requirement. In addition, from C11 and onwards, loops without a non-zero constant conditional or no conditional are also required to make progress (C11 6.8.5p6). This patch implements these attribute deductions so they can be used by the optimization passes. Differential Revision: https://reviews.llvm.org/D86841
2020-11-03 05:03:21 +08:00
// CHECK: ![[OUTER_LOOPID]] = distinct !{![[OUTER_LOOPID]], [[MP:![0-9]+]], ![[PARALLEL_ACCESSES_9:[0-9]+]]
[CodeGen] Generate llvm.loop.parallel_accesses instead of llvm.mem.parallel_loop_access metadata. Instead of generating llvm.mem.parallel_loop_access metadata, generate llvm.access.group on instructions and llvm.loop.parallel_accesses on loops. There is one access group per generated loop. This is clang part of D52116/r349725. Differential Revision: https://reviews.llvm.org/D52117 llvm-svn: 349823
2018-12-21 05:24:54 +08:00
// CHECK: ![[PARALLEL_ACCESSES_9]] = !{!"llvm.loop.parallel_accesses", ![[ACCESS_GROUP_2]]}