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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-05-21 11:56:55 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-06-17 06:33:14 -0700 |
| commit | 967b46530234b4e6ad3983057705aea6c20a03c4 (patch) | |
| tree | 87a0ce8f7eec0c4ae72c1ee49f30fe53aec84268 /gcc/config/m32c | |
| parent | 20a2c8ace0ab56c147fd995432abd5e7cf89b0e3 (diff) | |
| download | gcc-967b46530234b4e6ad3983057705aea6c20a03c4.zip gcc-967b46530234b4e6ad3983057705aea6c20a03c4.tar.gz gcc-967b46530234b4e6ad3983057705aea6c20a03c4.tar.bz2 | |
Add a target calls hook: TARGET_PUSH_ARGUMENT
1. Replace PUSH_ARGS with a target calls hook, TARGET_PUSH_ARGUMENT, which
takes an integer argument. When it returns true, push instructions will
be used to pass outgoing arguments. If the argument is nonzero, it is
the number of bytes to push and indicates the PUSH instruction usage is
optional so that the backend can decide if PUSH instructions should be
generated. Otherwise, the argument is zero.
2. Implement x86 target hook which returns false when the number of bytes
to push is no less than 16 (8 for 32-bit targets) if vector load and store
can be used.
3. Remove target PUSH_ARGS definitions which return 0 as it is the same
as the default.
4. Define TARGET_PUSH_ARGUMENT of cr16 and m32c to always return true.
gcc/
PR target/100704
* calls.c (expand_call): Replace PUSH_ARGS with
targetm.calls.push_argument (0).
(emit_library_call_value_1): Likewise.
* defaults.h (PUSH_ARGS): Removed.
(PUSH_ARGS_REVERSED): Replace PUSH_ARGS with
targetm.calls.push_argument (0).
* expr.c (block_move_libcall_safe_for_call_parm): Likewise.
(emit_push_insn): Pass the number bytes to push to
targetm.calls.push_argument and pass 0 if ARGS_ADDR is 0.
* hooks.c (hook_bool_uint_true): New.
* hooks.h (hook_bool_uint_true): Likewise.
* rtlanal.c (nonzero_bits1): Replace PUSH_ARGS with
targetm.calls.push_argument (0).
* target.def (push_argument): Add a targetm.calls hook.
* targhooks.c (default_push_argument): New.
* targhooks.h (default_push_argument): Likewise.
* config/bpf/bpf.h (PUSH_ARGS): Removed.
* config/cr16/cr16.c (TARGET_PUSH_ARGUMENT): New.
* config/cr16/cr16.h (PUSH_ARGS): Removed.
* config/i386/i386.c (ix86_push_argument): New.
(TARGET_PUSH_ARGUMENT): Likewise.
* config/i386/i386.h (PUSH_ARGS): Removed.
* config/m32c/m32c.c (TARGET_PUSH_ARGUMENT): New.
* config/m32c/m32c.h (PUSH_ARGS): Removed.
* config/nios2/nios2.h (PUSH_ARGS): Likewise.
* config/pru/pru.h (PUSH_ARGS): Likewise.
* doc/tm.texi.in: Remove PUSH_ARGS documentation. Add
TARGET_PUSH_ARGUMENT hook.
* doc/tm.texi: Regenerated.
gcc/testsuite/
PR target/100704
* gcc.target/i386/pr100704-1.c: New test.
* gcc.target/i386/pr100704-2.c: Likewise.
* gcc.target/i386/pr100704-3.c: Likewise.
Diffstat (limited to 'gcc/config/m32c')
| -rw-r--r-- | gcc/config/m32c/m32c.c | 3 | ||||
| -rw-r--r-- | gcc/config/m32c/m32c.h | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/gcc/config/m32c/m32c.c b/gcc/config/m32c/m32c.c index b1cb359..d22bdd7 100644 --- a/gcc/config/m32c/m32c.c +++ b/gcc/config/m32c/m32c.c @@ -1296,6 +1296,9 @@ m32c_push_rounding (poly_int64 n) return (n + 1) & ~1; } +#undef TARGET_PUSH_ARGUMENT +#define TARGET_PUSH_ARGUMENT hook_bool_uint_true + /* Passing Arguments in Registers */ /* Implements TARGET_FUNCTION_ARG. Arguments are passed partly in diff --git a/gcc/config/m32c/m32c.h b/gcc/config/m32c/m32c.h index 635f592..228a73d 100644 --- a/gcc/config/m32c/m32c.h +++ b/gcc/config/m32c/m32c.h @@ -472,7 +472,6 @@ enum reg_class /* Passing Function Arguments on the Stack */ -#define PUSH_ARGS 1 #define PUSH_ROUNDING(N) m32c_push_rounding (N) #define CALL_POPS_ARGS(C) 0 |