6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-28 03:25:23 +00:00
Code Issues Projects Releases Wiki Activity

Allow targets to specify a minimum supported NOP size when performing NOP padding. If the desired padding is smaller than the supported NOP size,

Browse Source 
we will enlarge the padding to make it work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162870 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2012-08-29 22:18:56 +00:00
parent 66390805ad
commit 15b7a98ece
2 changed files with 13 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
lib/MC/MCAssembler.cpp
View File

@@ -325,6 +325,12 @@ uint64_t MCAssembler::computeFragmentSize(const MCAsmLayout &Layout,
const MCAlignFragment &AF = cast<MCAlignFragment>(F);
unsigned Offset = Layout.getFragmentOffset(&AF);
unsigned Size = OffsetToAlignment(Offset, AF.getAlignment());
// If we are padding with nops, force the padding to be larger than the
// minimum nop size.
if (Size > 0 && AF.hasEmitNops()) {
while (Size % getBackend().getMinimumNopSize())
Size += AF.getAlignment();
}
if (Size > AF.getMaxBytesToEmit())
return 0;
return Size;