weaselab/conflict-set
1
Fork 1
Code Issues 5 Pull Requests 1 Actions 6 Packages Releases 13 Activity

Merge pull request 'Correct rationale in simd_x86_64.S comment' (#72) from weaselbot/conflict-set:weaselbot/issue-71 into main
CI / pre-commit (push) Successful in 2m5s
Details
CI / test (-DCMAKE_BUILD_TYPE=Debug -DMSAN_TOOLCHAIN_PATH=/opt/msan, debug) (push) Successful in 3m51s
Details
CI / test (-DCMAKE_CXX_FLAGS=-DUSE_64_BIT=1, 64-bit-versions) (push) Successful in 3m19s
Details
CI / test (-DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++, gcc) (push) Successful in 3m13s
Details
CI / test (-DUSE_SIMD_FALLBACK=ON, simd-fallback) (push) Successful in 3m17s
Details
CI / release (arm64, , ubuntu-latest-arm64) (push) Successful in 3m27s
Details
CI / coverage (push) Successful in 3m54s
Details
CI / release (amd64, -DMSAN_TOOLCHAIN_PATH=/opt/msan, ubuntu-latest-amd64) (push) Successful in 5m57s
Details

Browse Source 
Reviewed-on: #72
This commit was merged in pull request #72.
This commit is contained in:
andrew
2026-08-03 04:59:26 +00:00
parent 0103837488 0b12a037c4
commit bdbac1556d
1 changed files with 4 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
simd_x86_64.S
+4 -3
View File
@@ -1,7 +1,8 @@
// SIMD operations on potentially-indeterminate Node16::index[16] bytes.
// Written in assembly so msan doesn't track the loads. The caller is
// responsible for masking the returned bitfield to [0, numChildren) before
// using it.
// Written in assembly because loading and operating on indeterminate values
// is UB in C++ but well-defined in assembly. (A side effect is that msan
// doesn't track the loads.) The caller is responsible for masking the
// returned bitfield to [0, numChildren) before using it.
//
// All functions return a 16-bit bitmask in %eax (bit i set = condition true
// at index i). The upper 16 bits of %eax are zero.