6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-24 08:24:33 +00:00
Code Issues Projects Releases Wiki Activity

Add vector shifts to the IR, patch by Eli Friedman.

Browse Source 
CodeGen & Clang work coming next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54161 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman
2008-07-29 15:49:41 +00:00
parent 75cf9cc527
commit 5bc1ea0736
11 changed files with 361 additions and 319 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
lib/Transforms/Scalar/InstructionCombining.cpp
View File

@ -6368,7 +6368,8 @@ Instruction *InstCombiner::visitAShr(BinaryOperator &I) {
return ReplaceInstUsesWith(I, CSI);
// See if we can turn a signed shr into an unsigned shr.
if (MaskedValueIsZero(Op0,
if (!isa<VectorType>(I.getType()) &&
MaskedValueIsZero(Op0,
APInt::getSignBit(I.getType()->getPrimitiveSizeInBits())))
return BinaryOperator::CreateLShr(Op0, I.getOperand(1));