[Openmp-commits] [PATCH] D13827: Avoid bad conversion for __kmp_sys_max_nth

[Dimitry Andric via Openmp-commits]

dim updated this revision to Diff 37766.
dim added a comment.

Use alternate method, which only requires changing the header:

- If PTHREADS_THREADS_MAX is defined, clamp it to INT_MAX
- If PTHREADS_THREADS_MAX is not defined, use INT_MAX


http://reviews.llvm.org/D13827

Files:
  runtime/src/kmp.h

Index: runtime/src/kmp.h
===================================================================
--- runtime/src/kmp.h
+++ runtime/src/kmp.h
@@ -845,10 +845,10 @@
 #define KMP_MIN_NTH           1
 
 #ifndef KMP_MAX_NTH
-#  ifdef PTHREAD_THREADS_MAX
+#  if defined(PTHREAD_THREADS_MAX) && PTHREAD_THREADS_MAX < INT_MAX
 #    define KMP_MAX_NTH          PTHREAD_THREADS_MAX
 #  else
-#    define KMP_MAX_NTH          (32 * 1024)
+#    define KMP_MAX_NTH          INT_MAX
 #  endif
 #endif /* KMP_MAX_NTH */
 


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