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10 Commits

Author SHA1 Message Date
Matt Arsenault a3fe7c62d1 R600: Fix nonsensical implementation of computeKnownBits for BFE 
This was resulting in invalid simplifications of sdiv

llvm-svn: 219953
 2014-10-16 20:07:40 +00:00
Tom Stellard 79243d9664 R600: Call EmitFunctionHeader() in the AsmPrinter to populate the ELF symbol table 
llvm-svn: 218776
 2014-10-01 17:15:17 +00:00
Matt Arsenault 46cbc4367b R600: Better fix for bug 20982 
Just do the left shift as unsigned to avoid the UB.

llvm-svn: 218092
 2014-09-19 00:42:06 +00:00
Matt Arsenault 6462f94884 R600: Bug 20982 - Avoid undefined left shift of negative value 
I'm not sure what the hardware actually does, so don't
bother trying to fold it for now.

llvm-svn: 218057
 2014-09-18 15:52:26 +00:00
Alexey Samsonov 7bddb0a56a Exclude known and bugzilled failures from UBSan bootstrap 
llvm-svn: 217979
 2014-09-17 20:17:52 +00:00
Matt Arsenault 05e96f4444 R600: Try to convert BFE back to standard bit ops when possible. 
This allows existing DAG combines to work on them, and then
we can re-match to BFE if necessary during instruction selection.

llvm-svn: 209462
 2014-05-22 18:09:12 +00:00
Matt Arsenault 5565f65e13 R600: Add dag combine for BFE 
llvm-svn: 209461
 2014-05-22 18:09:07 +00:00
Matt Arsenault 4b0402e317 R600/SI: Try to fix BFE operands when moving to VALU 
This was broken by r208479

llvm-svn: 208740
 2014-05-13 23:45:50 +00:00
Tom Stellard a0150cb6a9 R600: Correct opcode for BFE_INT 
Acording to AMD documentation, the correct opcode for
BFE_INT is 0x5, not 0x4

Fixes Arithm/Absdiff.Mat/3 OpenCV test

Patch by: Bruno Jiménez

llvm-svn: 205562
 2014-04-03 20:19:29 +00:00
Matt Arsenault 4c53717787 R600: Add BFE, BFI, and BFM intrinsics to help with writing tests. 
llvm-svn: 205236
 2014-03-31 18:21:18 +00:00