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| author | H.J. Lu <hjl.tools@gmail.com> | 2024-02-26 08:38:58 -0800 |
|---|---|---|
| committer | H.J. Lu <(no_default)> | 2024-04-03 06:49:45 -0700 |
| commit | cab32bacaea268ec062b1fb4fc662d90c9d1cfce (patch) | |
| tree | 240030e282f60ff9bf545f1e2052a77d9ef7873a /gcc/function.cc | |
| parent | 6f91cce9a314cd4bce16fe52a2ffbeb93d59320b (diff) | |
| download | gcc-cab32bacaea268ec062b1fb4fc662d90c9d1cfce.zip gcc-cab32bacaea268ec062b1fb4fc662d90c9d1cfce.tar.gz gcc-cab32bacaea268ec062b1fb4fc662d90c9d1cfce.tar.bz2 | |
tree-profile: Disable indirect call profiling for IFUNC resolvers
We can't profile indirect calls to IFUNC resolvers nor their callees as
it requires TLS which hasn't been set up yet when the dynamic linker is
resolving IFUNC symbols.
Add an IFUNC resolver caller marker to cgraph_node and set it if the
function is called by an IFUNC resolver. Disable indirect call profiling
for IFUNC resolvers and their callees.
Tested with profiledbootstrap on Fedora 39/x86-64.
gcc/ChangeLog:
PR tree-optimization/114115
* cgraph.h (symtab_node): Add check_ifunc_callee_symtab_nodes.
(cgraph_node): Add called_by_ifunc_resolver.
* cgraphunit.cc (symbol_table::compile): Call
symtab_node::check_ifunc_callee_symtab_nodes.
* symtab.cc (check_ifunc_resolver): New.
(ifunc_ref_map): Likewise.
(is_caller_ifunc_resolver): Likewise.
(symtab_node::check_ifunc_callee_symtab_nodes): Likewise.
* tree-profile.cc (gimple_gen_ic_func_profiler): Disable indirect
call profiling for IFUNC resolvers and their callees.
gcc/testsuite/ChangeLog:
PR tree-optimization/114115
* gcc.dg/pr114115.c: New test.
Diffstat (limited to 'gcc/function.cc')
0 files changed, 0 insertions, 0 deletions