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Use DwarfDebug::attachLowHighPC for the compilation unit DIE.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216719 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Frederic Riss 2014-08-29 09:00:26 +00:00
parent 37e671e894
commit 622de3b2eb
3 changed files with 27 additions and 12 deletions
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5
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -950,10 +950,7 @@ void DwarfDebug::finalizeModuleInfo() {
0);
} else {
RangeSpan &Range = TheU->getRanges().back();
U.addLocalLabelAddress(U.getUnitDie(), dwarf::DW_AT_low_pc,
Range.getStart());
U.addLabelDelta(U.getUnitDie(), dwarf::DW_AT_high_pc, Range.getEnd(),
Range.getStart());
attachLowHighPC(U, U.getUnitDie(), Range.getStart(), Range.getEnd());
}
}
}

14
test/DebugInfo/X86/lexical_block.ll
View File

@ -1,11 +1,19 @@
; REQUIRES: object-emission
; RUN: llc -mtriple=x86_64-linux -O0 -filetype=obj < %s \
; RUN: | llvm-dwarfdump -debug-dump=info - | FileCheck %s
; RUN: | llvm-dwarfdump -debug-dump=info - | FileCheck --check-prefix=CHECK --check-prefix=CHECK-V4 %s
; RUN: llc -mtriple=x86_64-linux -dwarf-version=3 -O0 -filetype=obj < %s \
; RUN: | llvm-dwarfdump -debug-dump=info - | FileCheck --check-prefix=CHECK --check-prefix=CHECK-V3 %s
; Check that we emit DW_TAG_lexical_block and that it has the right encoding
; depending on the dwarf version.
; CHECK: DW_TAG_lexical_block
; CHECK-NEXT: DW_AT_low_pc [DW_FORM_addr]
; CHECK-NEXT: DW_AT_high_pc [DW_FORM_data4]
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: DW_AT_low_pc [DW_FORM_addr]
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK-V4: DW_AT_high_pc [DW_FORM_data4]
; CHECK-V3: DW_AT_high_pc [DW_FORM_addr]
; Test case produced from:
; void b() {

20
test/DebugInfo/X86/low-pc-cu.ll
View File

@ -1,14 +1,24 @@
; RUN: llc -mtriple=x86_64-apple-darwin %s -o %t -filetype=obj
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
; RUN: llc -mtriple=x86_64-apple-darwin -filetype=obj < %s \
; RUN: | llvm-dwarfdump -debug-dump=info - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V4
; RUN: llc -mtriple=x86_64-apple-darwin -filetype=obj -dwarf-version=3 < %s \
; RUN: | llvm-dwarfdump -debug-dump=info - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V3
; Check that we use DW_AT_low_pc
; Check that we use DW_AT_low_pc and that it has the right encoding depending
; on dwarf version.
; CHECK: DW_TAG_compile_unit [1]
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
; CHECK: DW_AT_high_pc [DW_FORM_data4]
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK-V3: DW_AT_high_pc [DW_FORM_addr]
; CHECK-V4: DW_AT_high_pc [DW_FORM_data4]
; CHECK: DW_TAG_subprogram [2]
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: DW_AT_low_pc [DW_FORM_addr]
; CHECK: DW_AT_high_pc [DW_FORM_data4]
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK-V3: DW_AT_high_pc [DW_FORM_addr]
; CHECK-V4: DW_AT_high_pc [DW_FORM_data4]
; Function Attrs: nounwind uwtable
define void @z() #0 {