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| author | Michael Kruse <llvm-project@meinersbur.de> | 2021-09-25 01:03:36 -0500 |
|---|---|---|
| committer | Michael Kruse <llvm-project@meinersbur.de> | 2021-09-26 03:26:43 -0500 |
| commit | d5c87162db7763c89160dc66894bebf3bd1e90d7 (patch) | |
| tree | 301340ff76b5580b6b425ec8d0e023323b445047 /polly/include | |
| parent | 1cea25eec90e355c9b072edc1b6e1e9903d7bca4 (diff) | |
| download | llvm-d5c87162db7763c89160dc66894bebf3bd1e90d7.tar.gz | |
[Polly] Use VirtualUse to determine references.
VirtualUse ensures consistency over different source of values with
Polly. In particular, this enables its use of instructions moved between
Statement. Before the patch, the code wrongly assumed that the BB's
instructions are also the ScopStmt's instructions. Reference are
determined for OpenMP outlining and GPGPU kernel extraction.
GPGPU CodeGen had some problems. For one, it generated GPU kernel
parameters for constants. Second, it emitted GPU-side invariant loads
which have already been loaded by the host. This has been partially
fixed, it still generates a store for the invariant load result, but
using the value that the host has already written.
WARNING: I did not test the generated PollyACC code on an actual GPU.
The improved consistency will be made use of in the next patch.
Diffstat (limited to 'polly/include')
| -rw-r--r-- | polly/include/polly/CodeGen/IslNodeBuilder.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/polly/include/polly/CodeGen/IslNodeBuilder.h b/polly/include/polly/CodeGen/IslNodeBuilder.h index ee0a1e58ae86..450d63c286e9 100644 --- a/polly/include/polly/CodeGen/IslNodeBuilder.h +++ b/polly/include/polly/CodeGen/IslNodeBuilder.h @@ -58,7 +58,7 @@ struct SubtreeReferences { /// SubtreeReferences structure. /// @param CreateScalarRefs Should the result include allocas of scalar /// references? -void addReferencesFromStmt(const ScopStmt *Stmt, void *UserPtr, +void addReferencesFromStmt(ScopStmt *Stmt, void *UserPtr, bool CreateScalarRefs = true); class IslNodeBuilder { |