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| author | Richard Henderson <rth@redhat.com> | 2002-04-18 13:28:39 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2002-04-18 13:28:39 -0700 |
| commit | 51dcde6f95c8a107e0fb143210122eb49ee3c421 (patch) | |
| tree | a68bf81a9dde32eb7fcde964fe821cc364ee470f /gcc | |
| parent | a48632153d7f6013126d9a73125fbef7c05268c4 (diff) | |
| download | gcc-51dcde6f95c8a107e0fb143210122eb49ee3c421.zip gcc-51dcde6f95c8a107e0fb143210122eb49ee3c421.tar.gz gcc-51dcde6f95c8a107e0fb143210122eb49ee3c421.tar.bz2 | |
ia64.c (ia64_function_arg_pass_by_reference): New.
* config/ia64/ia64.c (ia64_function_arg_pass_by_reference): New.
(ia64_va_arg): Expect variable sized types by reference.
* config/ia64/ia64-protos.h: Update.
* config/ia64/ia64.h (FUNCTION_ARG_PASS_BY_REFERENCE): Use
ia64_function_arg_pass_by_reference.
From-SVN: r52494
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/ia64/ia64-protos.h | 3 | ||||
| -rw-r--r-- | gcc/config/ia64/ia64.c | 20 | ||||
| -rw-r--r-- | gcc/config/ia64/ia64.h | 3 |
4 files changed, 33 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 137640d..7b71e96 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,13 @@ 2002-04-18 Richard Henderson <rth@redhat.com> + * config/ia64/ia64.c (ia64_function_arg_pass_by_reference): New. + (ia64_va_arg): Expect variable sized types by reference. + * config/ia64/ia64-protos.h: Update. + * config/ia64/ia64.h (FUNCTION_ARG_PASS_BY_REFERENCE): Use + ia64_function_arg_pass_by_reference. + +2002-04-18 Richard Henderson <rth@redhat.com> + * ifcvt.c: Include except.h. (block_has_only_trap): Break out from find_cond_trap. (find_cond_trap): Use it. Always delete the trap block. diff --git a/gcc/config/ia64/ia64-protos.h b/gcc/config/ia64/ia64-protos.h index 2bf67b2..8b0d185 100644 --- a/gcc/config/ia64/ia64-protos.h +++ b/gcc/config/ia64/ia64-protos.h @@ -114,6 +114,9 @@ extern int ia64_function_arg_partial_nregs PARAMS((CUMULATIVE_ARGS *, extern void ia64_function_arg_advance PARAMS((CUMULATIVE_ARGS *, enum machine_mode, tree, int)); +extern int ia64_function_arg_pass_by_reference PARAMS((CUMULATIVE_ARGS *, + enum machine_mode, + tree, int)); extern int ia64_return_in_memory PARAMS((tree)); extern void ia64_asm_output_external PARAMS((FILE *, tree, const char *)); diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c index 74cbf81..d628dea 100644 --- a/gcc/config/ia64/ia64.c +++ b/gcc/config/ia64/ia64.c @@ -3200,6 +3200,19 @@ ia64_function_arg_advance (cum, mode, type, named) cum->int_regs = cum->words; } } + +/* Variable sized types are passed by reference. */ +/* ??? At present this is a GCC extension to the IA-64 ABI. */ + +int +ia64_function_arg_pass_by_reference (cum, mode, type, named) + CUMULATIVE_ARGS *cum ATTRIBUTE_UNUSED; + enum machine_mode mode ATTRIBUTE_UNUSED; + tree type; + int named ATTRIBUTE_UNUSED; +{ + return TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST; +} /* Implement va_start. */ @@ -3231,6 +3244,13 @@ ia64_va_arg (valist, type) { tree t; + /* Variable sized types are passed by reference. */ + if (TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST) + { + rtx addr = std_expand_builtin_va_arg (valist, build_pointer_type (type)); + return gen_rtx_MEM (ptr_mode, force_reg (Pmode, addr)); + } + /* Arguments with alignment larger than 8 bytes start at the next even boundary. */ if (TYPE_ALIGN (type) > 8 * BITS_PER_UNIT) diff --git a/gcc/config/ia64/ia64.h b/gcc/config/ia64/ia64.h index 8b0d3d8..fd880fa 100644 --- a/gcc/config/ia64/ia64.h +++ b/gcc/config/ia64/ia64.h @@ -1268,7 +1268,8 @@ enum reg_class pointer is passed in whatever way is appropriate for passing a pointer to that type. */ -#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) 0 +#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) \ + ia64_function_arg_pass_by_reference (&CUM, MODE, TYPE, NAMED) /* A C type for declaring a variable that is used as the first argument of `FUNCTION_ARG' and other related values. For some target machines, the type |