https://bugs.llvm.org/show_bug.cgi?id=47691
Bug ID: 47691
Summary: Mixing inline and ifunc confuses clang
Product: clang
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: raf...@espindo.la
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
Created attachment 24010
--> https://bugs.llvm.org/attachment.cgi?id=24010&action=edit
testcas
Compile twice with
$ clang++ -Os -S -o test1.s test.cc -DINLINE=
$ clang++ -Os -S -o test2.s test.cc -DINLINE=inline
The first file has the expected result:
_Z9foobarzedPvS_.avx2: # @_Z9foobarzedPvS_.avx2
.cfi_startproc
# %bb.0:
vlddqu (%rdi), %ymm0
vlddqu (%rsi), %ymm1
vpcmpgtq %ymm1, %ymm0, %ymm0
vpmovmskb %ymm0, %eax
vzeroupper
retq
In the second one it looks like clang sees declarations for the avx functions:
_Z9foobarzedPvS_.avx2: # @_Z9foobarzedPvS_.avx2
.cfi_startproc
# %bb.0:
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset %rbp, -16
movq %rsp, %rbp
.cfi_def_cfa_register %rbp
pushq %rbx
andq $-32, %rsp
subq $224, %rsp
.cfi_offset %rbx, -24
movq %rsi, %rbx
callq _ZL18_mm256_lddqu_si256PKDv4_x
--
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