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This patch adds statistics for other non-DWARF fragments emitted by

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the assembler. This is useful in order to know how the numbers add up,
since in particular the Align fragments account for a non-trivial
portion of the emitted fragments (especially on -O0 which sets
relax-all).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169747 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Bendersky 2012-12-10 18:59:39 +00:00
parent f21831073c
commit 6ac81f59a7
1 changed files with 13 additions and 2 deletions
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15
lib/MC/MCAssembler.cpp
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@ -34,8 +34,16 @@ using namespace llvm;
namespace {
namespace stats {
STATISTIC(EmittedFragments, "Number of emitted assembler fragments - total");
STATISTIC(EmittedInstFragments, "Number of emitted assembler fragments - instruction");
STATISTIC(EmittedDataFragments, "Number of emitted assembler fragments - data");
STATISTIC(EmittedInstFragments,
"Number of emitted assembler fragments - instruction");
STATISTIC(EmittedDataFragments,
"Number of emitted assembler fragments - data");
STATISTIC(EmittedAlignFragments,
"Number of emitted assembler fragments - align");
STATISTIC(EmittedFillFragments,
"Number of emitted assembler fragments - fill");
STATISTIC(EmittedOrgFragments,
"Number of emitted assembler fragments - org");
STATISTIC(evaluateFixup, "Number of evaluated fixups");
STATISTIC(FragmentLayouts, "Number of fragment layouts");
STATISTIC(ObjectBytes, "Number of emitted object file bytes");
@ -407,6 +415,7 @@ static void writeFragment(const MCAssembler &Asm, const MCAsmLayout &Layout,
uint64_t FragmentSize = Asm.computeFragmentSize(Layout, F);
switch (F.getKind()) {
case MCFragment::FT_Align: {
++stats::EmittedAlignFragments;
MCAlignFragment &AF = cast<MCAlignFragment>(F);
uint64_t Count = FragmentSize / AF.getValueSize();
@ -456,6 +465,7 @@ static void writeFragment(const MCAssembler &Asm, const MCAsmLayout &Layout,
break;
case MCFragment::FT_Fill: {
++stats::EmittedFillFragments;
MCFillFragment &FF = cast<MCFillFragment>(F);
assert(FF.getValueSize() && "Invalid virtual align in concrete fragment!");
@ -479,6 +489,7 @@ static void writeFragment(const MCAssembler &Asm, const MCAsmLayout &Layout,
}
case MCFragment::FT_Org: {
++stats::EmittedOrgFragments;
MCOrgFragment &OF = cast<MCOrgFragment>(F);
for (uint64_t i = 0, e = FragmentSize; i != e; ++i)