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7 Commits

Author SHA1 Message Date
Jim Grosbach
74472b4bf9 Refactor away tSpill and tRestore pseudos in ARM backend. 
The tSpill and tRestore instructions are just copies of the tSTRspi and
tLDRspi instructions, respectively. Just use those directly instead.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134092 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-29 20:26:39 +00:00
Jim Grosbach
7980f61f5f Fix coordination for using R4 in Thumb1 as a scratch for SP restore. 
The logic for reserving R4 for use as a scratch needs to match that for
actually using it. Also, it's not necessary for immediate <=508, so adjust
the value checked.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132934 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-13 21:18:25 +00:00
Anton Korobeynikov
3daccd82d3 Implement frame unwinding information emission for Thumb1. Not finished yet because there is no way given the constpool index to examine the actual entry: the reason is clones inserted by constant island pass, which are not tracked at all! The only connection is done during asmprinting time via magic label names which is really gross and needs to be eventually fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127104 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-05 18:43:50 +00:00
Anton Korobeynikov
57caad7a33 Preliminary support for ARM frame save directives emission via MI flags. 
This is just very first approximation how the stuff should be done
(e.g. ARM-only for now). More to follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127101 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-05 18:43:32 +00:00
Jakob Stoklund Olesen
4f28c1c714 Teach frame lowering to ignore debug values after the terminators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123399 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-13 21:28:52 +00:00
Eric Christopher
94bb7b561c Even if we don't have 7 bytes of stack space we may need to save and 
restore the stack pointer from the frame pointer on thumbv6.

Fixes rdar://8819685


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123196 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-11 00:16:04 +00:00
Anton Korobeynikov
16c29b5f28 Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-10 12:39:04 +00:00