| commit | 13d52216c1ec5ca837af04e46c0fcc4b06ca81a5 | |
| author | Tobias Grosser <tobias@grosser.es> | |
| Sun, 1 Oct 2017 12:39:14 +0000 (1 12:39 +0000) | ||
| committer | Tobias Grosser <tobias@grosser.es> | |
| Sun, 1 Oct 2017 12:39:14 +0000 (1 12:39 +0000) | ||
| tree | f7ecf35e95c08bc11d8134b0d3fdb45a17fce9e3 | treesnapshot (tar.gz zip) |
| parent | 2f54f46f63f087b48cfd92d90b15675d7a87b109 | commitdiff |
[GPGPU] Set Polly's RTC to false in case invariant load hoisting fails
This matches the behavior we already have in lib/Codegen/CodeGeneration.cpp and
makes sure that we fall back to the original code. It seems when invariant load
hoisting was introduced to the GPGPU backend we missed to reset the RTC flag,
such that kernels where invariant load hoisting failed executed the 'optimized'
SCoP, which however is set to a simple 'unreachable'. Unsurprisingly, this
results in hard to debug issues that are a lot of fun to debug.
git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@314624 91177308-0d34-0410-b5e6-96231b3b80d8
This matches the behavior we already have in lib/Codegen/CodeGeneration.cpp and
makes sure that we fall back to the original code. It seems when invariant load
hoisting was introduced to the GPGPU backend we missed to reset the RTC flag,
such that kernels where invariant load hoisting failed executed the 'optimized'
SCoP, which however is set to a simple 'unreachable'. Unsurprisingly, this
results in hard to debug issues that are a lot of fun to debug.
git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@314624 91177308-0d34-0410-b5e6-96231b3b80d8
| lib/CodeGen/PPCGCodeGeneration.cpp | diffblobblamehistory | |
| test/GPGPU/failing-invariant-load-hoisting.ll | [new file with mode: 0644] | blob |