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Move get[S|U]LEB128Size() to LEB128.h.

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This commit moves getSLEB128Size() and getULEB128Size() from
MCAsmInfo to LEB128.h and removes some copy-and-paste code.

Besides, this commit also adds some unit tests for the LEB128
functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201937 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Logan Chien
2014-02-22 14:00:39 +00:00
parent fb24ccfa32
commit 80668d18e8
10 changed files with 364 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/CodeGen/AsmPrinter/DIE.cpp
+7 -6
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@@ -24,6 +24,7 @@
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/LEB128.h"
#include "llvm/Support/MD5.h"
using namespace llvm;
@@ -256,10 +257,10 @@ unsigned DIEInteger::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
case dwarf::DW_FORM_ref8: // Fall thru
case dwarf::DW_FORM_ref_sig8: // Fall thru
case dwarf::DW_FORM_data8: return sizeof(int64_t);
case dwarf::DW_FORM_GNU_str_index: return MCAsmInfo::getULEB128Size(Integer);
case dwarf::DW_FORM_GNU_addr_index: return MCAsmInfo::getULEB128Size(Integer);
case dwarf::DW_FORM_udata: return MCAsmInfo::getULEB128Size(Integer);
case dwarf::DW_FORM_sdata: return MCAsmInfo::getSLEB128Size(Integer);
case dwarf::DW_FORM_GNU_str_index: return getULEB128Size(Integer);
case dwarf::DW_FORM_GNU_addr_index: return getULEB128Size(Integer);
case dwarf::DW_FORM_udata: return getULEB128Size(Integer);
case dwarf::DW_FORM_sdata: return getSLEB128Size(Integer);
case dwarf::DW_FORM_addr: return AP->getDataLayout().getPointerSize();
default: llvm_unreachable("DIE Value form not supported yet");
}
@@ -463,7 +464,7 @@ unsigned DIELoc::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
case dwarf::DW_FORM_block4: return Size + sizeof(int32_t);
case dwarf::DW_FORM_block:
case dwarf::DW_FORM_exprloc:
return Size + MCAsmInfo::getULEB128Size(Size);
return Size + getULEB128Size(Size);
default: llvm_unreachable("Improper form for block");
}
}
@@ -516,7 +517,7 @@ unsigned DIEBlock::SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
case dwarf::DW_FORM_block1: return Size + sizeof(int8_t);
case dwarf::DW_FORM_block2: return Size + sizeof(int16_t);
case dwarf::DW_FORM_block4: return Size + sizeof(int32_t);
case dwarf::DW_FORM_block: return Size + MCAsmInfo::getULEB128Size(Size);
case dwarf::DW_FORM_block: return Size + getULEB128Size(Size);
default: llvm_unreachable("Improper form for block");
}
}