maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
131,899 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

13 Commits

Author SHA1 Message Date
Justin Holewinski aa58397b3c Change interface for TargetLowering::LowerCallTo and TargetLowering::LowerCall 
to pass around a struct instead of a large set of individual values.  This
cleans up the interface and allows more information to be added to the struct
for future targets without requiring changes to each and every target.

NV_CONTRIB

llvm-svn: 157479
 2012-05-25 16:35:28 +00:00
Evan Cheng 65f9d19c4f Re-commit r151623 with fix. Only issue special no-return calls if it's a direct call. 
llvm-svn: 151645
 2012-02-28 18:51:51 +00:00
Daniel Dunbar ee7b899343 Revert r151623 "Some ARM implementaions, e.g. A-series, does return stack prediction. ...", it is breaking the Clang build during the Compiler-RT part. 
llvm-svn: 151630
 2012-02-28 15:36:07 +00:00
Evan Cheng 87c7b09d8d Some ARM implementaions, e.g. A-series, does return stack prediction. That is, 
the processor keeps a return addresses stack (RAS) which stores the address
and the instruction execution state of the instruction after a function-call
type branch instruction.

Calling a "noreturn" function with normal call instructions (e.g. bl) can
corrupt RAS and causes 100% return misprediction so LLVM should use a
unconditional branch instead. i.e.
mov lr, pc
b _foo
The "mov lr, pc" is issued in order to get proper backtrace.

rdar://8979299

llvm-svn: 151623
 2012-02-28 06:42:03 +00:00
Evan Cheng 0460ae8d80 Proper support for a bastardized darwin-eabi hybird ABI. 
llvm-svn: 151083
 2012-02-21 20:46:00 +00:00
Pete Cooper 82cd9e81fc Added invariant field to the DAG.getLoad method and changed all calls. 
When this field is true it means that the load is from constant (runt-time or compile-time) and so can be hoisted from loops or moved around other memory accesses

llvm-svn: 144100
 2011-11-08 18:42:53 +00:00
Jim Grosbach e7e2aca322 Tidy up a few 80 column violations. 
llvm-svn: 139636
 2011-09-13 20:30:37 +00:00
Chris Lattner 229907cd11 land David Blaikie's patch to de-constify Type, with a few tweaks. 
llvm-svn: 135375
 2011-07-18 04:54:35 +00:00
Renato Golin 4cd5187f5b RTABI chapter 4.3.4 specifies __eabi_mem* calls. Specifically, __eabi_memset accepts parameters (ptr, size, value) in a different order than GNU's memset (ptr, value, size), therefore the special lowering in AAPCS mode. Implementation by Evzen Muller. 
llvm-svn: 131868
 2011-05-22 21:41:23 +00:00
Chris Lattner 0ab5e2cded Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!

llvm-svn: 129558
 2011-04-15 05:18:47 +00:00
Chris Lattner 2510de2bea reimplement memcpy/memmove/memset lowering to use MachinePointerInfo 
instead of srcvalue/offset pairs.  This corrects SV info for mem 
operations whose size is > 32-bits.

llvm-svn: 114401
 2010-09-21 05:40:29 +00:00
Dan Gohman bb919dfb6b Implement a bunch more TargetSelectionDAGInfo infrastructure. 
Move EmitTargetCodeForMemcpy, EmitTargetCodeForMemset, and
EmitTargetCodeForMemmove out of TargetLowering and into
SelectionDAGInfo to exercise this.

llvm-svn: 103481
 2010-05-11 17:31:57 +00:00
Dan Gohman 9becdddc49 Add skeleton target-specific SelectionDAGInfo files. 
llvm-svn: 101564
 2010-04-16 23:04:22 +00:00