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sanitizer_common: avoid compiler-interted memset in deadlock detector 

Compilers tends to insert memset/memcpy for some struct/array operations,
and these don't play well inside of sanitizer runtimes.
Avoiding these calls was the intention behind internal_memset.
Remove the leftover ={} that can result in memset call.

Reviewed By: vitalybuka, pgousseau

Differential Revision: https://reviews.llvm.org/D106978
This commit is contained in:
Dmitry Vyukov 2021-07-28 19:58:52 +02:00
parent 9dad34423b
commit 170a8c1284
1 changed files with 1 additions and 1 deletions
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compiler-rt/lib/sanitizer_common/sanitizer_mutex.cpp
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@ -73,7 +73,7 @@ void DebugMutexInit() {
// Build adjacency matrix. // Build adjacency matrix.
bool leaf[kMutexTypeMax]; bool leaf[kMutexTypeMax];
internal_memset(&leaf, 0, sizeof(leaf)); internal_memset(&leaf, 0, sizeof(leaf));
int cnt[kMutexTypeMax] = {}; int cnt[kMutexTypeMax];
internal_memset(&cnt, 0, sizeof(cnt)); internal_memset(&cnt, 0, sizeof(cnt));
for (int t = 0; t < kMutexTypeMax; t++) { for (int t = 0; t < kMutexTypeMax; t++) {
mutex_type_count = t; mutex_type_count = t;