This makes attribute cleanup code work the same as gcc and also
makes bound checking a very little bit faster.
tcc.h:
Add save_return_reg(CType *) and restore_return_reg(CType *)
Change gfunc_epilog() to gfunc_epilog(Sym *)
arm-gen.c:
arm64-gen.c:
c67-gen.c:
i386-gen.c:
il-gen.c:
riscv64-gen.c:
x86_64-gen.c:
Move save and restore register around bound_local_delete call
to save_return_reg and restore_return_reg.
Pass func_type from gfunc_epilog to gen_bounds_epilog.
tccgen.c:
Call save_return_reg/restore_return_reg in try_call_scope_cleanup
when RETURN is found.
tccrun.c:
Fix warning when bound checking not used.
tests/tests2/101_cleanup.c
tests/tests2/101_cleanup.expect
Extra checks attribute cleanup save/restore registers.
tests/tests2/Makefile:
Fix when bound checking not used.
* Documentation is now in "docs".
* Source code is now in "src".
* Misc. fixes here and there so that everything still works.
I think I got everything in this commit, but I only tested this
on Linux (Make) and Windows (CMake), so I might've messed
something up on other platforms...
Author: Thomas Preud'homme <robotux@celest.fr>
Date: Tue Dec 31 23:51:20 2013 +0800
Move logic for if (int value) to tccgen.c
Move the logic to do a test of an integer value (ex if (0)) out of
arch-specific code to tccgen.c to avoid code duplication. This also
fixes test of long long value which was only testing the bottom half of
such values on 32 bits architectures.
I don't understand why if () in gtst(i) was removed.
This patch allows to compile a linux kernel v.2.4.26
W/o this patch a tcc simply crashes.
The procedure calling standard for ARM architecture mandate the use of
the base standard for variadic function. Therefore, hgen float aggregate
must be returned via stack when greater than 4 bytes and via core
registers else in case of variadic function.
This patch improve gfunc_sret() to take into account whether the
function is variadic or not and make use of gfunc_sret() return value to
determine whether to pass a structure via stack in gfunc_prolog(). It
also take advantage of knowing if a function is variadic or not move
float result value from VFP register to core register in gfunc_epilog().
Move the logic to do a test of an integer value (ex if (0)) out of
arch-specific code to tccgen.c to avoid code duplication. This also
fixes test of long long value which was only testing the bottom half of
such values on 32 bits architectures.
