[llvm] 834b820 - [AMDGPU] Correct pass dependencies for SILowerSGPRSpills (#109937)

[via llvm-commits]

Author: Akshat Oke
Date: 2024-10-22T15:20:54+05:30
New Revision: 834b820f4047dcdce555f6a768821d95b04b2407

URL: https://github.com/llvm/llvm-project/commit/834b820f4047dcdce555f6a768821d95b04b2407
DIFF: https://github.com/llvm/llvm-project/commit/834b820f4047dcdce555f6a768821d95b04b2407.diff

LOG: [AMDGPU] Correct pass dependencies for SILowerSGPRSpills (#109937)

Replace unused analysis (VirtRegMap) dependency with the used one (SlotIndexes)
Initializes `SlotIndexesWrapperPass` which is used by SILowerSGPRSpills to ensure that legacy pass manager finds it.
Removes the initialization for `VirtRegMapWrapperPass` since it is not requested in this pass.

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/SILowerSGPRSpills.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/AMDGPU/SILowerSGPRSpills.cpp b/llvm/lib/Target/AMDGPU/SILowerSGPRSpills.cpp
index 4afefa3d9b245c..d8697aa2ffe1cd 100644
--- a/llvm/lib/Target/AMDGPU/SILowerSGPRSpills.cpp
+++ b/llvm/lib/Target/AMDGPU/SILowerSGPRSpills.cpp
@@ -95,8 +95,8 @@ char SILowerSGPRSpillsLegacy::ID = 0;
 INITIALIZE_PASS_BEGIN(SILowerSGPRSpillsLegacy, DEBUG_TYPE,
                       "SI lower SGPR spill instructions", false, false)
 INITIALIZE_PASS_DEPENDENCY(LiveIntervalsWrapperPass)
-INITIALIZE_PASS_DEPENDENCY(VirtRegMapWrapperLegacy)
 INITIALIZE_PASS_DEPENDENCY(MachineDominatorTreeWrapperPass)
+INITIALIZE_PASS_DEPENDENCY(SlotIndexesWrapperPass)
 INITIALIZE_PASS_END(SILowerSGPRSpillsLegacy, DEBUG_TYPE,
                     "SI lower SGPR spill instructions", false, false)