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llvm-project/lld/test/COFF/icf-different-align.test

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[test] Replace `yaml2obj >` with `yaml2obj -o` and remove unneeded input redirection
2020-08-21 06:00:25 +08:00
# RUN: yaml2obj %s -o %t.obj
COFF: ICF should not merge sectinos if their alignments are not the same. There's actually a room to improve this patch. Instead of not merging sections that have different alignements, we can choose the section that has the largest alignment requirement among all sections that are otherwise considered the same. Then all section alignments are satisfied, so we can merge them. I don't know if that improvement could make any difference for real-world input, so I'll leave it alone. Would be interesting to revisit later. llvm-svn: 248581
2015-09-26 00:50:12 +08:00
# RUN: lld-link /entry:foo /out:%t.exe /subsystem:console /include:bar \
# RUN: /verbose %t.obj > %t.log 2>&1
# RUN: FileCheck %s < %t.log
COFF: Allow ICFing sections with different alignments. The combined section gets the maximum alignment of all sections. Differential Revision: https://reviews.llvm.org/D46786 llvm-svn: 332273
2018-05-15 02:36:51 +08:00
# RUN: llvm-objdump -s %t.exe | FileCheck --check-prefix=OBJDUMP %s
COFF: ICF should not merge sectinos if their alignments are not the same. There's actually a room to improve this patch. Instead of not merging sections that have different alignements, we can choose the section that has the largest alignment requirement among all sections that are otherwise considered the same. Then all section alignments are satisfied, so we can merge them. I don't know if that improvement could make any difference for real-world input, so I'll leave it alone. Would be interesting to revisit later. llvm-svn: 248581
2015-09-26 00:50:12 +08:00
COFF: Allow ICFing sections with different alignments. The combined section gets the maximum alignment of all sections. Differential Revision: https://reviews.llvm.org/D46786 llvm-svn: 332273
2018-05-15 02:36:51 +08:00
# CHECK: Selected foo
# CHECK: Removed bar
# OBJDUMP: Contents of section .text:
# OBJDUMP-NEXT: 140001000 00cccccc cccccccc cccccccc cccccccc
# OBJDUMP-NEXT: 140001010 4883ec28 e8000000 004883c4 28c3
COFF: ICF should not merge sectinos if their alignments are not the same. There's actually a room to improve this patch. Instead of not merging sections that have different alignements, we can choose the section that has the largest alignment requirement among all sections that are otherwise considered the same. Then all section alignments are satisfied, so we can merge them. I don't know if that improvement could make any difference for real-world input, so I'll leave it alone. Would be interesting to revisit later. llvm-svn: 248581
2015-09-26 00:50:12 +08:00
[yaml2obj] Updating LLD tests to account for LLVM r273915 This removed the -format flag from yaml2obj in favor of YAML tags. llvm-svn: 273920
2016-06-28 04:17:08 +08:00
--- !COFF
COFF: ICF should not merge sectinos if their alignments are not the same. There's actually a room to improve this patch. Instead of not merging sections that have different alignements, we can choose the section that has the largest alignment requirement among all sections that are otherwise considered the same. Then all section alignments are satisfied, so we can merge them. I don't know if that improvement could make any difference for real-world input, so I'll leave it alone. Would be interesting to revisit later. llvm-svn: 248581
2015-09-26 00:50:12 +08:00
header:
Machine: IMAGE_FILE_MACHINE_AMD64
Characteristics: []
sections:
- Name: '.text$mn'
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
Alignment: 8
SectionData: 4883EC28E8000000004883C428C3
- Name: '.text$mn'
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
Alignment: 16
SectionData: 4883EC28E8000000004883C428C3
COFF: Allow ICFing sections with different alignments. The combined section gets the maximum alignment of all sections. Differential Revision: https://reviews.llvm.org/D46786 llvm-svn: 332273
2018-05-15 02:36:51 +08:00
- Name: '.text'
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
Alignment: 1
SectionData: 00
COFF: ICF should not merge sectinos if their alignments are not the same. There's actually a room to improve this patch. Instead of not merging sections that have different alignements, we can choose the section that has the largest alignment requirement among all sections that are otherwise considered the same. Then all section alignments are satisfied, so we can merge them. I don't know if that improvement could make any difference for real-world input, so I'll leave it alone. Would be interesting to revisit later. llvm-svn: 248581
2015-09-26 00:50:12 +08:00
symbols:
- Name: '.text$mn'
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 14
NumberOfRelocations: 0
NumberOfLinenumbers: 0
CheckSum: 1682752513
Number: 0
Selection: IMAGE_COMDAT_SELECT_NODUPLICATES
- Name: '.text$mn'
Value: 0
SectionNumber: 2
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 14
NumberOfRelocations: 0
NumberOfLinenumbers: 0
CheckSum: 1682752513
Number: 0
Selection: IMAGE_COMDAT_SELECT_NODUPLICATES
- Name: foo
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_FUNCTION
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
- Name: bar
Value: 0
SectionNumber: 2
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_FUNCTION
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
...