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| author | David Blaikie <dblaikie@gmail.com> | 2018-10-20 09:16:49 +0000 |
|---|---|---|
| committer | David Blaikie <dblaikie@gmail.com> | 2018-10-20 09:16:49 +0000 |
| commit | 14cfa0dcdc4a476bdbeff66cb0297ce68a1b8ad5 (patch) | |
| tree | d91dcaecb1c3f2414cdc5d1079e9b009e73aeeb6 /llvm/lib | |
| parent | 4a5b01ddd7dd12f9a5826741e57104e8bf54748b (diff) | |
| download | bcm5719-llvm-14cfa0dcdc4a476bdbeff66cb0297ce68a1b8ad5.tar.gz bcm5719-llvm-14cfa0dcdc4a476bdbeff66cb0297ce68a1b8ad5.zip | |
DebugInfo: Use base address specifiers more aggressively
Using a base address specifier even for a single-element range is a size
win for object files (7 words versus 8 words - more significant savings
if the debug info is compressed (since it's 3 words of uncompressable
reloc + 4 compressable words compared to 6 uncompressable reloc + 2
compressable words) - does trade off executable size increase though.
llvm-svn: 344841
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index 3d842e70138..2f14f5464fd 100644 --- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -2163,7 +2163,7 @@ static void emitRangeList(DwarfDebug &DD, AsmPrinter *Asm, // or optnone where there may be holes in a single CU's section // contributions. auto *Base = CUBase; - if (!Base && P.second.size() > 1 && + if (!Base && (P.second.size() > 1 || DwarfVersion < 5) && (UseDwarfRangesBaseAddressSpecifier || DwarfVersion >= 5)) { BaseIsSet = true; // FIXME/use care: This may not be a useful base address if it's not |
