diff options
| author | Shinichiro Hamaji <shinichiro.hamaji _at_ gmail.com> | 2009-04-02 01:40:00 +0900 |
|---|---|---|
| committer | grischka <grischka> | 2009-04-18 15:07:09 +0200 |
| commit | 06fa15fb9912dde92c61541a759dc217962967b3 (patch) | |
| tree | 6a01614479db0ceab884309b158f365a08be6fc6 /x86_64-gen.c | |
| parent | ebb874e2164308b1b9a53a2b1f6d1b9f65894059 (diff) | |
| download | tinycc-06fa15fb9912dde92c61541a759dc217962967b3.tar.gz tinycc-06fa15fb9912dde92c61541a759dc217962967b3.tar.bz2 | |
x86-64: Save RDX and RCX before we use them as function parameters.
When the function call is indirect, these registers may be broken to load a function pointer.
Diffstat (limited to 'x86_64-gen.c')
| -rw-r--r-- | x86_64-gen.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/x86_64-gen.c b/x86_64-gen.c index f3382ae..1cbe414 100644 --- a/x86_64-gen.c +++ b/x86_64-gen.c @@ -582,6 +582,8 @@ void gfunc_call(int nb_args) vtop--; } + save_regs(0); /* save used temporary registers */ + /* Copy R10 and R11 into RDX and RCX, respectively */ if (nb_reg_args > 2) { o(0xd2894c); /* mov %r10, %rdx */ @@ -590,8 +592,6 @@ void gfunc_call(int nb_args) } } - save_regs(0); /* save used temporary registers */ - func_sym = vtop->type.ref; func_call = FUNC_CALL(func_sym->r); oad(0xb8, nb_sse_args < 8 ? nb_sse_args : 8); /* mov nb_sse_args, %eax */ |