RPCSX/llvm
1
0
Fork 0
mirror of https://github.com/RPCSX/llvm.git synced 2025-02-05 11:57:07 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[PowerPC] Make PPCTTI::getMemoryOpCost call BasicTTI::getMemoryOpCost

Browse Source 
PPCTTI::getMemoryOpCost will now make use of BasicTTI::getMemoryOpCost to
calculate the base cost of the memory access, and then adjust on top of that.
There is no functionality change from this modification, but it will become
important so that PPCTTI can take advantage of scalarization information for which
BasicTTI::getMemoryOpCost will account in the near future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205476 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hal Finkel 2014-04-02 22:43:49 +00:00
parent 75cea2c73e
commit 1fb3df7a2e
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
lib/Target/PowerPC/PPCTargetTransformInfo.cpp
View File

@ -241,8 +241,8 @@ unsigned PPCTTI::getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
assert((Opcode == Instruction::Load || Opcode == Instruction::Store) &&
"Invalid Opcode");
// Each load/store unit costs 1.
unsigned Cost = LT.first * 1;
unsigned Cost =
TargetTransformInfo::getMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
// FIXME: Update this for VSX loads/stores that support unaligned access.
@ -250,7 +250,7 @@ unsigned PPCTTI::getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
// to be decomposed based on the alignment factor.
unsigned SrcBytes = LT.second.getStoreSize();
if (SrcBytes && Alignment && Alignment < SrcBytes)
Cost *= (SrcBytes/Alignment);
Cost += LT.first*(SrcBytes/Alignment-1);
return Cost;
}