4 Commits

Author	SHA1	Message	Date
Saleem Abdulrasool	b720a6bab7	ARM: remove ancient -arm-tail-calls option ... This option is from 2010, designed to work around a linker issue on Darwin for ARM. According to grosbach this is no longer an issue and this option can safely be removed. llvm-svn: 203576	2014-03-11 15:09:49 +00:00
Manman Ren	7e48b252e7	ARM: tail-call inside a function where part of a byval argument is on caller's ... local frame causes problem. For example: void f(StructToPass s) { g(&s, sizeof(s)); } will cause problem with tail-call since part of s is passed via registers and saved in f's local frame. When g tries to access s, part of s may be corrupted since f's local frame is popped out before the tail-call. The current fix is to disable tail-call if getVarArgsRegSaveSize is not 0 for the caller. This is a conservative approach, if we can prove the address of s or part of s is not taken and passed to g, it should be okay to perform tail-call. rdar://12442472 llvm-svn: 165853	2012-10-12 23:39:43 +00:00
Evan Cheng	68132d8093	ARM target code clean up. Check for iOS, not Darwin where it makes sense. ... llvm-svn: 146981	2011-12-20 18:26:50 +00:00
Cameron Zwarich	033026ffc0	Update an insertion point iterator after replacing a return instruction with a ... tail call pseudoinstruction. This fixes <rdar://problem/9624333>. llvm-svn: 133227	2011-06-17 02:16:43 +00:00