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| author | Fangrui Song <i@maskray.me> | 2025-07-19 16:55:29 -0700 |
|---|---|---|
| committer | Fangrui Song <i@maskray.me> | 2025-07-19 16:55:30 -0700 |
| commit | 39c8cfb70d203439e3296dfdfe3d41f1cb2ec551 (patch) | |
| tree | d5cc9405d2e382022f7a641b0bf7606a1e5262e2 /llvm/lib/MC/MCCodeView.cpp | |
| parent | 54492c231c5d9091d086bfb767423415ea6bd0bc (diff) | |
| download | llvm-39c8cfb70d203439e3296dfdfe3d41f1cb2ec551.zip llvm-39c8cfb70d203439e3296dfdfe3d41f1cb2ec551.tar.gz llvm-39c8cfb70d203439e3296dfdfe3d41f1cb2ec551.tar.bz2 | |
MC: Optimize getOrCreateDataFragment
... by eagerly allocating an empty fragment when adding a fragment
with a variable-size tail.
X86AsmBackend, The JCC erratum mitigation and x86-pad-for-align set a
flag for FT_Relaxable, which needs to be moved to emitInstructionBegin.
```
if (CF->getKind() == MCFragment::FT_Relaxable)
CF->setAllowAutoPadding(canPadInst(Inst, OS));
```
Follow-up to #148544
Diffstat (limited to 'llvm/lib/MC/MCCodeView.cpp')
| -rw-r--r-- | llvm/lib/MC/MCCodeView.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/MC/MCCodeView.cpp b/llvm/lib/MC/MCCodeView.cpp index 1f98251..b151a25 100644 --- a/llvm/lib/MC/MCCodeView.cpp +++ b/llvm/lib/MC/MCCodeView.cpp @@ -166,8 +166,8 @@ void CodeViewContext::emitStringTable(MCObjectStreamer &OS) { // somewhere else. If somebody wants two string tables in their .s file, one // will just be empty. if (!StrTabFragment) { - StrTabFragment = Ctx.allocFragment<MCFragment>(); - OS.insert(StrTabFragment); + OS.newFragment(); + StrTabFragment = OS.getCurrentFragment(); } OS.emitValueToAlignment(Align(4), 0); |