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[Bug target/25967] Add attribute naked for x86
- From: "uros at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 31 Jul 2017 10:23:13 +0000
- Subject: [Bug target/25967] Add attribute naked for x86
- Auto-submitted: auto-generated
- References: <bug-25967-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25967
--- Comment #17 from uros at gcc dot gnu.org ---
Author: uros
Date: Mon Jul 31 10:22:41 2017
New Revision: 250736
URL: https://gcc.gnu.org/viewcvs?rev=250736&root=gcc&view=rev
Log:
PR target/25967
* config/i386/i386.c (ix86_function_naked): New function.
(ix86_can_use_return_insn_p): Return false for naked functions.
(ix86_expand_prologue): Skip prologue for naked functions.
(ix86_expand_epilogue): Skip epilogue for naked functions
and emit trap instruction.
(ix86_warn_func_return): New function.
(ix86_attribute_table): Add "naked" attribute specification.
(TARGET_WARN_FUNC_RETURN): Define.
* doc/extend.texi (x86 Function Attributes) <naked>: Document it.
testsuite/ChangeLog:
PR target/25967
* gcc.target/i386/naked-1.c: New test.
* gcc.target/i386/naked-2.c: Ditto.
* gcc.target/i386/naked-3.c: Ditto.
* gcc.target/x86_64/abi/ms-sysv/ms-sysv.c: Remove
do_test_body0 stub function, use attribute "naked" instead.
* gcc.dg/pr44290-1.c: Use naked_functions effective target.
* gcc.dg/pr44290-2.c: Ditto.
Added:
trunk/gcc/testsuite/gcc.target/i386/naked-1.c
trunk/gcc/testsuite/gcc.target/i386/naked-2.c
trunk/gcc/testsuite/gcc.target/i386/naked-3.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/doc/extend.texi
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/pr44290-1.c
trunk/gcc/testsuite/gcc.dg/pr44290-2.c
trunk/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.c