Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tm/memopt-11.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do compile } */ /* { dg-options "-fgnu-tm -O -fdump-tree-tmmark" } */ extern int something(void) __attribute__((transaction_safe)); extern void *malloc (__SIZE_TYPE__) __attribute__((malloc,transaction_safe)); extern void foo (int); int f() { int *p; p = malloc (sizeof (*p) * 100); foo(p[5]); __transaction_atomic { /* p[5] is thread private, however the SSA_NAME that holds the address dominates the entire transaction (transaction invariant) so we can use a save/restore pair. */ p[5] = 123; if (something()) __transaction_cancel; } return p[5]; } /* { dg-final { scan-tree-dump-times "ITM_LU" 0 "tmmark" } } */ /* { dg-final { scan-tree-dump-times "ITM_WU" 0 "tmmark" } } */ /* { dg-final { scan-tree-dump-times "int tm_save" 1 "tmmark" } } */