5 Commits

Author	SHA1	Message	Date
Dávid Bolvanský	cd54c57919	Reland "[Libcalls, Attrs] Annotate libcalls with noundef" ... Fixed Clang tests.	2021-02-20 06:18:48 +01:00
Dávid Bolvanský	94d034fb86	Revert "[Libcalls, Attrs] Annotate libcalls with noundef" ... This reverts commit 33b0c63775. Bots are failing. Some Clang tests need to be updated too.	2021-02-20 04:18:42 +01:00
Dávid Bolvanský	33b0c63775	[Libcalls, Attrs] Annotate libcalls with noundef ... I think we can use here same logic as for nonnull. strlen(X) - X must be noundef => valid pointer. for libcalls with size arg, we add noundef only if size is known and greater than 0 - so pointers must be noundef (valid ones) Reviewed By: jdoerfert, aqjune Differential Revision: https://reviews.llvm.org/D95122	2021-02-20 04:10:07 +01:00
Dávid Bolvanský	f62de7c9c7	[SLC] Transform strncpy(dst, "text", C) to memcpy(dst, "text\0\0\0", C) for C <= 128 only ... Transformation creates big strings for big C values, so bail out for C > 128. Reviewed By: efriedma Differential Revision: https://reviews.llvm.org/D86004	2020-08-15 01:53:32 +02:00
Dávid Bolvanský	5ef2287d36	[SLC] Optimize strncpy(a, a, C) to memcpy(a, a000, C) ... Solves PR47154	2020-08-13 22:22:51 +02:00