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13 Commits

Author SHA1 Message Date
Dan Gohman
84d08db733 Initialize LiveOutInfo's APInt members to zero, as APInt's 
default constructor produces an uninitialized APInt.
This fixes PR3896.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67879 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-27 23:51:02 +00:00
Bill Wendling
dfdacee2ab Generate these labels when we're in "fast" mode, not simply when we're no in 
"optimize-for-size" mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65064 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-19 21:12:54 +00:00
Bill Wendling
6a8a0d74cb Pass in something sensible for the debug location information when creating the 
initial PHI nodes of the machine function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63598 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-03 02:20:52 +00:00
Bill Wendling
0eb96fd94b Alphabetize includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63591 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-03 01:32:22 +00:00
Dale Johannesen
66978ee977 Move CurDebugLoc into SelectionDAGLowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63468 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 02:22:37 +00:00
Anton Korobeynikov
2321858c8c Initial checkin of APInt'ififcation of switch lowering 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61395 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-23 22:25:27 +00:00
Bill Wendling
74c3765291 Add sub/mul overflow intrinsics. This currently doesn't have a 
target-independent way of determining overflow on multiplication. It's very
tricky. Patch by Zoltan Varga!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60800 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 22:08:41 +00:00
Dan Gohman
c227734855 Factor out the code for mapping LLVM IR condition opcodes to 
ISD condition opcodes into helper functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57726 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-17 21:16:08 +00:00
Dale Johannesen
8e3455ba17 Remove SelectionDag early allocation of registers 
for earlyclobbers.  Teach Local RA about earlyclobber,
and add some tests for it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56592 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 23:13:09 +00:00
Bill Wendling
aeb5c7b353 Implement "visitPow". This is mainly used to see if we have a pow() call of this 
form:

          powf(10.0f, x);

If this is the case, and also we want limited precision floating-point
calculations, then lower to do the limited-precision stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56035 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 00:20:20 +00:00
Dale Johannesen
59e577f73c Add hooks for other intrinsics to get low-precision expansions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55845 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 18:38:42 +00:00
Dale Johannesen
601d3c0145 Add -flimit-float-precision to enable some faster, 
but less accurate (non-IEEE) code sequences for
certain math library functions.  Add the first of
several such expansions.  Don't worry, if you don't
turn it on it won't affect you.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55823 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 01:48:15 +00:00
Dan Gohman
f0cbcd4880 Split the SelectionDAG-building code, including the FunctionLoweringInfo 
and SelectionDAGLowering classes, out of SelectionDAGISel.cpp and put
it in a separate file, SelectionDAGBuild.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55701 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 16:12:24 +00:00