[llvm] RegisterPressure: Detect dead physreg defs from LiveIntervals (PR #225079)
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Mon Sep 21 06:04:25 PDT 2026
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git-clang-format --diff origin/main HEAD --extensions h,cpp -- llvm/include/llvm/CodeGen/RegisterPressure.h llvm/lib/CodeGen/RegisterPressure.cpp llvm/lib/CodeGen/ScheduleDAGInstrs.cpp llvm/lib/Target/AMDGPU/AMDGPUNextUseAnalysis.cpp llvm/lib/Target/AMDGPU/GCNRegPressure.cpp llvm/lib/Target/AMDGPU/GCNRegPressure.h --diff_from_common_commit
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``````````diff
diff --git a/llvm/lib/CodeGen/RegisterPressure.cpp b/llvm/lib/CodeGen/RegisterPressure.cpp
index 40e3c003e..91cb8c321 100644
--- a/llvm/lib/CodeGen/RegisterPressure.cpp
+++ b/llvm/lib/CodeGen/RegisterPressure.cpp
@@ -253,8 +253,7 @@ void RegPressureTracker::reset() {
///
/// TODO: Add support for pressure without LiveIntervals.
void RegPressureTracker::init(const MachineFunction *mf,
- const RegisterClassInfo *rci,
- LiveIntervals *lis,
+ const RegisterClassInfo *rci, LiveIntervals *lis,
const MachineBasicBlock *mbb,
MachineBasicBlock::const_iterator pos,
bool TrackLaneMasks, bool TrackUntiedDefs) {
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https://github.com/llvm/llvm-project/pull/225079
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