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[AMDGPU] Added hot-block-rematerialize pass #126331

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[AMDGPU] Added hot-block-rematerialize pass #126331

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b6eb3b3
Added rematerialize pass and test.
adam-yang Mar 18, 2025
7739842
Fixed build, and added simple tests that exercise major code paths
adam-yang Feb 6, 2025
3539ab3
Test renames, only keeping the required flags for the tests
adam-yang Feb 6, 2025
a33f944
Using the mir uniformity analysis instead, which DOES require SSA; bu…
adam-yang Feb 10, 2025
2215b79
In block remat AND making v to s slightly more robust
adam-yang Feb 12, 2025
d36a4ae
clang-format
adam-yang Feb 12, 2025
bf396df
Added option to enable it in the target profile
adam-yang Mar 11, 2025
c64c4e4
Fix PHI node handling in regpressure tracker
adam-yang Mar 11, 2025
3dc22d4
Fixed the PHI issue
adam-yang Mar 11, 2025
29eca4a
Removed old forks of things
adam-yang Mar 12, 2025
6b011fb
Clang format and warnings.
adam-yang Mar 12, 2025
eb4f8c1
First batch of formatting changes
adam-yang Mar 13, 2025
78ab7f3
Batch 2
adam-yang Mar 13, 2025
d8b6711
More cleanup
adam-yang Mar 14, 2025
f8eb7fb
More cleanups
adam-yang Mar 17, 2025
0600e2f
Possibly the last batch of cleanup
adam-yang Mar 17, 2025
84d8dd8
Additional cleanup + format
adam-yang Mar 18, 2025
303a401
Added cmath
adam-yang Mar 18, 2025
971e556
Wrong place for std header
adam-yang Mar 18, 2025
be03462
Made getMinimalSpanningSubRegIdxSetForLaneMask local
adam-yang Mar 18, 2025
436058b
Fixed build break after rebase
adam-yang Mar 18, 2025
9dbab90
Clang format
adam-yang Mar 18, 2025
ebcbb24
Fixing undef deprecator failures
adam-yang Mar 18, 2025
b5d143c
Ran latest format
adam-yang Mar 18, 2025
87d9404
Fixed failing tests, and added tests
adam-yang Mar 31, 2025
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4 changes: 4 additions & 0 deletions llvm/lib/Target/AMDGPU/AMDGPU.h
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Original file line number Diff line number Diff line change
Expand Up @@ -491,6 +491,10 @@ extern char &GCNRewritePartialRegUsesID;
void initializeAMDGPUWaitSGPRHazardsLegacyPass(PassRegistry &);
extern char &AMDGPUWaitSGPRHazardsLegacyID;

void initializeAMDGPUHotBlockRematerializePass(llvm::PassRegistry &);
FunctionPass *createAMDGPUHotBlockRematerializePass();
extern char &AMDGPUHotBlockRematerializeID;

namespace AMDGPU {
enum TargetIndex {
TI_CONSTDATA_START,
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