mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-26 00:56:05 +00:00
ffcf3c8688
This introduces a new cgdata format for stable function maps. The raw data is embedded in the __llvm_merge section during compile time. This data can be read and merged using the llvm-cgdata tool, into an indexed cgdata file. Consequently, the tool is now capable of handling either outlined hash trees, stable function maps, or both, as they are orthogonal. Depends on #112662. This is a patch for https://discourse.llvm.org/t/rfc-global-function-merging/82608.
38 lines
1.6 KiB
Plaintext
38 lines
1.6 KiB
Plaintext
# Test no input file
|
|
RUN: not llvm-cgdata --convert --output - 2>&1 | FileCheck %s --check-prefix=NOFILE --ignore-case
|
|
NOFILE: error: No input file is specified.
|
|
|
|
# Test for empty cgdata file, which is invalid.
|
|
RUN: touch %t_emptyfile.cgtext
|
|
RUN: not llvm-cgdata --convert %t_emptyfile.cgtext --format text 2>&1 | FileCheck %s --check-prefix=EMPTY
|
|
EMPTY: {{.}}emptyfile.cgtext: empty codegen data
|
|
|
|
# Test for empty header in the text format. It can be converted to a valid binary file.
|
|
RUN: printf '#' > %t_emptyheader.cgtext
|
|
RUN: llvm-cgdata --convert %t_emptyheader.cgtext --format binary -o %t_emptyheader.cgdata
|
|
|
|
# Without any cgdata other than the header, no data shows by default.
|
|
RUN: llvm-cgdata --show %t_emptyheader.cgdata | count 0
|
|
|
|
# The version number appears when asked, as it's in the header
|
|
RUN: llvm-cgdata --show --cgdata-version %t_emptyheader.cgdata | FileCheck %s --check-prefix=VERSION
|
|
VERSION: Version: 2
|
|
|
|
# When converting a binary file (w/ the header only) to a text file, it's an empty file as the text format does not have an explicit header.
|
|
RUN: llvm-cgdata --convert %t_emptyheader.cgdata --format text | count 0
|
|
|
|
# Synthesize a header only cgdata.
|
|
# struct Header {
|
|
# uint64_t Magic;
|
|
# uint32_t Version;
|
|
# uint32_t DataKind;
|
|
# uint64_t OutlinedHashTreeOffset;
|
|
# uint64_t StableFunctionMapOffset;
|
|
# }
|
|
RUN: printf '\xffcgdata\x81' > %t_header.cgdata
|
|
RUN: printf '\x02\x00\x00\x00' >> %t_header.cgdata
|
|
RUN: printf '\x00\x00\x00\x00' >> %t_header.cgdata
|
|
RUN: printf '\x20\x00\x00\x00\x00\x00\x00\x00' >> %t_header.cgdata
|
|
RUN: printf '\x20\x00\x00\x00\x00\x00\x00\x00' >> %t_header.cgdata
|
|
RUN: diff %t_header.cgdata %t_emptyheader.cgdata
|