[PATCH] D115808: [DAGCombiner] Avoid combining adjacent stores at -O0 to improve debug experience
Shivam Gupta via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Dec 15 09:46:29 PST 2021
xgupta created this revision.
xgupta added reviewers: RKSimon, spatel, dblaikie.
Herald added subscribers: luke957, frasercrmck, ecnelises, luismarques, apazos, sameer.abuasal, s.egerton, Jim, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, jrtc27, niosHD, sabuasal, simoncook, johnrusso, rbar, asb, hiraditya.
xgupta requested review of this revision.
Herald added subscribers: llvm-commits, MaskRay.
Herald added a project: LLVM.
When the source has a series of assignments, users reasonably want to
have the debugger step through each one individually. Turn off the combine
for adjacent stores so we get this behavior at -O0.
Similar to D7181 <https://reviews.llvm.org/D7181>.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D115808
Files:
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
llvm/test/CodeGen/RISCV/dbg-combine.ll
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