Commit Graph

2 Commits

Author SHA1 Message Date
Quentin Colombet 4cf56917ea [X86] Do not run shrink-wrapping on function with split-stack attribute or HiPE
calling convention.
The implementation of the related callbacks in the x86 backend for such
functions are not ready to deal with a prologue block that is not the entry
block of the function.

This fixes PR26107, but the longer term solution would be to fix those callbacks.

llvm-svn: 258221
2016-01-19 23:29:03 +00:00
Quentin Colombet 5d2f7cfd44 [X86] Enable shrink-wrapping by default, but keep it disabled for stack frames
without a frame pointer when unwind may happen.
This is a workaround for a bug in the way we emit the CFI directives for
frameless unwind information. See PR25614.

llvm-svn: 255175
2015-12-09 23:08:18 +00:00