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Add support for DWARF line number table entries for values in the instruction

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stream.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182712 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Cameron Zwarich 2013-05-25 21:56:53 +00:00
parent 60057270d9
commit 41b646c127
2 changed files with 12 additions and 4 deletions
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2
lib/MC/MCObjectStreamer.cpp
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@ -103,6 +103,8 @@ void MCObjectStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
assert(AddrSpace == 0 && "Address space must be 0!");
MCDataFragment *DF = getOrCreateDataFragment();
MCLineEntry::Make(this, getCurrentSection().first);
// Avoid fixups when possible.
int64_t AbsValue;
if (AddValueSymbols(Value)->EvaluateAsAbsolute(AbsValue, getAssembler())) {

14
test/MC/ELF/debug-line.s
View File

@ -8,17 +8,18 @@
// CHECK-NEXT: Flags [
// CHECK-NEXT: ]
// CHECK-NEXT: Address: 0x0
// CHECK-NEXT: Offset: 0x44
// CHECK-NEXT: Size: 55
// CHECK-NEXT: Offset: 0x48
// CHECK-NEXT: Size: 72
// CHECK-NEXT: Link: 0
// CHECK-NEXT: Info: 0
// CHECK-NEXT: AddressAlignment: 1
// CHECK-NEXT: EntrySize: 0
// CHECK-NEXT: SectionData (
// CHECK-NEXT: 0000: 33000000 02001C00 00000101 FB0E0D00
// CHECK-NEXT: 0000: 44000000 02001C00 00000101 FB0E0D00
// CHECK-NEXT: 0010: 01010101 00000001 00000100 666F6F2E
// CHECK-NEXT: 0020: 63000000 00000009 02000000 00000000
// CHECK-NEXT: 0030: 00150204 000101
// CHECK-NEXT: 0030: 00150205 00010100 09020000 00000000
// CHECK-NEXT: 0040: 00001602 43000101
// CHECK-NEXT: )
// CHECK-NEXT: }
@ -28,3 +29,8 @@
.file 1 "foo.c"
.loc 1 4 0
subq $8, %rsp
// Test that .loc works with values, not just instructions.
.loc 1 5 0
.byte 0xc3