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Commit Graph

14 Commits

Author SHA1 Message Date
Evan Cheng
2005804de6 - Re-apply 52748 and friends with fix. GetConstantStringInfo() returns an empty string for ConstantAggregateZero case which surprises selectiondag.
- Correctly handle memcpy from constant string which is zero-initialized.

llvm-svn: 52891
2008-06-30 07:31:25 +00:00
Anton Korobeynikov
6f260767ec Revert (52748 and friends):
Move GetConstantStringInfo to lib/Analysis. Remove
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

This unbreaks llvm-gcc bootstrap.

llvm-svn: 52884
2008-06-29 17:57:03 +00:00
Chris Lattner
090d81df5e Add back the capability to include nul characters in strings with
GetConstantStringInfo.  This will hopefully restore llvm-gcc to 
happy bootstrap land.

llvm-svn: 52851
2008-06-28 05:33:32 +00:00
Cedric Venet
3d67bd33b2 Add an include file needed for VS.
Add two new file to codegen project (VS).
This unbreak the build for VS.

llvm-svn: 52831
2008-06-27 18:00:09 +00:00
Chris Lattner
c94b39d65c fix the regressions from Eric's patch by making GetConstantStringInfo
tolerate a non-nul-terminated string, and handling a direct global 
reference.

llvm-svn: 52813
2008-06-27 03:36:51 +00:00
Eric Christopher
4f05c48718 Move GetConstantStringInfo to lib/Analysis. Remove
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

llvm-svn: 52748
2008-06-26 00:31:12 +00:00
Dan Gohman
d61d67b75c It's invalid to take the one-past-the-end address of a non-array
object.

llvm-svn: 52515
2008-06-20 00:49:21 +00:00
Matthijs Kooijman
44440c3722 Forgot to commit the ValueTracking header file along with r52396.
llvm-svn: 52401
2008-06-17 13:54:33 +00:00
Matthijs Kooijman
2fba6e78d6 80 column fixes.
llvm-svn: 52391
2008-06-17 08:26:32 +00:00
Matthijs Kooijman
544c9b2fb0 Make the InsertBefore argument to FindInsertedValue optional, so you can find an inserted value without modifying the code.
llvm-svn: 52319
2008-06-16 13:28:31 +00:00
Matthijs Kooijman
238b1e8d69 Pass around Instruction* instead of Instruction& in FindInsertedValue and friends.
llvm-svn: 52318
2008-06-16 13:13:08 +00:00
Matthijs Kooijman
1dd7d9cdc1 Move FindScalarValue from InstructionCombining.cpp to ValueTracking.cpp. While
I'm at it, rename it to FindInsertedValue.

The only functional change is that newly created instructions are no longer
added to instcombine's worklist, but that is not really necessary anyway (and
I'll commit some improvements next that will completely remove the need).

llvm-svn: 52315
2008-06-16 12:48:21 +00:00
Chris Lattner
ea60f0ccc3 move CannotBeNegativeZero to ValueTracking. Simplify some signbit comparisons.
llvm-svn: 51864
2008-06-02 01:29:46 +00:00
Chris Lattner
4960857273 move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits
out of instcombine into a new file in libanalysis.  This also teaches
ComputeNumSignBits about the number of sign bits in a constantint.

llvm-svn: 51863
2008-06-02 01:18:21 +00:00