Commit Graph

5 Commits

Author SHA1 Message Date
Joerg Sonnenberger
b84f890bc3 If a function needs a frame pointer, but r11 (aka fp) has not been used,
remove it from the list of unspilled registers. Otherwise the following
attempt to keep the stack aligned by picking an extra GPR register to
spill will not work as it picks up r11.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208129 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-06 20:43:01 +00:00
Hans Wennborg
c8ed0db5aa [ARM] Use symbolic register names in .cfi directives only with IAS (PR19110)
This is a follow-up to r203635. Saleem pointed out that since symbolic register
names are much easier to read, it would be good if we could turn them off only
when we really need to because we're using an external assembler.

Differential Revision: http://llvm-reviews.chandlerc.com/D3056

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203806 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-13 15:56:41 +00:00
Hans Wennborg
e03daa01f6 [ARM] Use DWARF register numbers for CFI directives in ELF assembly
It seems gas can't handle CFI directives with VFP register names ("d12", etc.).
This broke us trying to build Chromium for Android after 201423.

A gas bug has been filed: https://sourceware.org/bugzilla/show_bug.cgi?id=16694

compnerd suggested making this conditional on whether we're using the integrated
assembler or not. I'll look into that in a follow-up patch.

Differential Revision: http://llvm-reviews.chandlerc.com/D3049

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203635 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-12 03:52:34 +00:00
Saleem Abdulrasool
cde1f2eae2 ARM: enable tail call optimisation on Thumb 2
Tail call optimisation was previously disabled on all targets other than
iOS5.0+.  This enables the tail call optimisation on all Thumb 2 capable
platforms.

The test adjustments are to remove the IR hint "tail" to function invocation.
The tests were designed assuming that tail call optimisations would not kick in
which no longer holds true.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203575 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-11 15:09:44 +00:00
Artyom Skrobov
e228078ca6 Generate the DWARF stack frame decode operations in the function prologue for ARM/Thumb functions.
Patch by Keith Walker!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201423 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-14 17:19:07 +00:00