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| author | Jan Hubicka <jh@suse.cz> | 2009-01-06 16:04:25 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2009-01-06 15:04:25 +0000 |
| commit | 9aa5c1b2acb324d7d221f7d919e976110cdeedfc (patch) | |
| tree | ddd0047f2295a95e1ee60d5eb419ff46e616fc54 | |
| parent | f7556aaec3e41bc2314849dbd5de482ebf87a0d1 (diff) | |
| download | gcc-9aa5c1b2acb324d7d221f7d919e976110cdeedfc.zip gcc-9aa5c1b2acb324d7d221f7d919e976110cdeedfc.tar.gz gcc-9aa5c1b2acb324d7d221f7d919e976110cdeedfc.tar.bz2 | |
i386.h (ACCUMULATE_OUTGOING_ARGS): Enable for MSABI
* i386.h (ACCUMULATE_OUTGOING_ARGS): Enable for MSABI
* i386.c (init_cumulative_args): Disallow calls of MSABI functions when
accumulate outgoing args is off.
Co-Authored-By: Kai Tietz <kai.tietz@onevision.com>
From-SVN: r143118
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 3 | ||||
| -rw-r--r-- | gcc/config/i386/i386.h | 8 |
3 files changed, 16 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9c9a5fa..b1edf5e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2009-01-06 Jan Hubicka <jh@suse.cz> + Kai Tietz <kai.tietz@onevision.com> + + * i386.h (ACCUMULATE_OUTGOING_ARGS): Enable for MSABI + * i386.c (init_cumulative_args): Disallow calls of MSABI functions when + accumulate outgoing args is off. + 2009-01-06 H.J. Lu <hongjiu.lu@intel.com> PR bootstrap/38742 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index c698ee3..d6fca32 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -4639,6 +4639,9 @@ init_cumulative_args (CUMULATIVE_ARGS *cum, /* Argument info to initialize */ else cum->call_abi = ix86_function_type_abi (fntype); /* Set up the number of registers to use for passing arguments. */ + + if (cum->call_abi == MS_ABI && !ACCUMULATE_OUTGOING_ARGS) + sorry ("ms_abi attribute require -maccumulate-outgoing-args or subtarget optimization implying it"); cum->nregs = ix86_regparm; if (TARGET_64BIT) { diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index a1da0a75..a853ed6 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -1509,9 +1509,13 @@ enum reg_class be computed and placed into the variable `crtl->outgoing_args_size'. No space will be pushed onto the stack for each call; instead, the function prologue should increase the stack - frame size by this amount. */ + frame size by this amount. + + MS ABI seem to require 16 byte alignment everywhere except for function + prologue and apilogue. This is not possible without + ACCUMULATE_OUTGOING_ARGS. */ -#define ACCUMULATE_OUTGOING_ARGS TARGET_ACCUMULATE_OUTGOING_ARGS +#define ACCUMULATE_OUTGOING_ARGS (TARGET_ACCUMULATE_OUTGOING_ARGS || ix86_cfun_abi () == MS_ABI) /* If defined, a C expression whose value is nonzero when we want to use PUSH instructions to pass outgoing arguments. */ |