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author | John David Anglin <danglin@gcc.gnu.org> | 2016-12-11 19:08:47 +0000 |
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committer | John David Anglin <danglin@gcc.gnu.org> | 2016-12-11 19:08:47 +0000 |
commit | 84c9e5ff798acd208e4dd94577a76a0775e1fa75 (patch) | |
tree | ae1ba7515b25dbdd8e8bc6483f074a8e6640ec2d | |
parent | 8c7cc1a98ff3834ac2e0a57533c08d123aeebd81 (diff) | |
download | gcc-84c9e5ff798acd208e4dd94577a76a0775e1fa75.zip gcc-84c9e5ff798acd208e4dd94577a76a0775e1fa75.tar.gz gcc-84c9e5ff798acd208e4dd94577a76a0775e1fa75.tar.bz2 |
pa.c (pa_callee_copies): New function.
* config/pa/pa.c (pa_callee_copies): New function.
* config/pa/pa.opt (mcaller-copies): New option.
* doc/invoke.texi (mcaller-copies): Document option.
From-SVN: r243531
-rw-r--r-- | gcc/ChangeLog | 6 | ||||
-rw-r--r-- | gcc/config/pa/pa.c | 19 | ||||
-rw-r--r-- | gcc/config/pa/pa.opt | 4 | ||||
-rw-r--r-- | gcc/doc/invoke.texi | 10 |
4 files changed, 37 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 24a7fdd..54558cd 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-12-11 John David Anglin <danglin@gcc.gnu.org> + + * config/pa/pa.c (pa_callee_copies): New function. + * config/pa/pa.opt (mcaller-copies): New option. + * doc/invoke.texi (mcaller-copies): Document option. + 2016-12-11 Uros Bizjak <ubizjak@gmail.com> PR target/70799 diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c index c8ce083..6d18dfe 100644 --- a/gcc/config/pa/pa.c +++ b/gcc/config/pa/pa.c @@ -195,6 +195,8 @@ static bool pa_cannot_force_const_mem (machine_mode, rtx); static bool pa_legitimate_constant_p (machine_mode, rtx); static unsigned int pa_section_type_flags (tree, const char *, int); static bool pa_legitimate_address_p (machine_mode, rtx, bool); +static bool pa_callee_copies (cumulative_args_t, machine_mode, + const_tree, bool); /* The following extra sections are only used for SOM. */ static GTY(()) section *som_readonly_data_section; @@ -343,7 +345,7 @@ static size_t n_deferred_plabels = 0; #undef TARGET_PASS_BY_REFERENCE #define TARGET_PASS_BY_REFERENCE pa_pass_by_reference #undef TARGET_CALLEE_COPIES -#define TARGET_CALLEE_COPIES hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true +#define TARGET_CALLEE_COPIES pa_callee_copies #undef TARGET_ARG_PARTIAL_BYTES #define TARGET_ARG_PARTIAL_BYTES pa_arg_partial_bytes #undef TARGET_FUNCTION_ARG @@ -10720,4 +10722,19 @@ pa_maybe_emit_compare_and_swap_exchange_loop (rtx target, rtx mem, rtx val) return NULL_RTX; } +/* Implement TARGET_CALLEE_COPIES. The callee is responsible for copying + arguments passed by hidden reference in the 32-bit HP runtime. Users + can override this behavior for better compatibility with openmp at the + risk of library incompatibilities. Arguments are always passed by value + in the 64-bit HP runtime. */ + +static bool +pa_callee_copies (cumulative_args_t cum ATTRIBUTE_UNUSED, + machine_mode mode ATTRIBUTE_UNUSED, + const_tree type ATTRIBUTE_UNUSED, + bool named ATTRIBUTE_UNUSED) +{ + return !TARGET_CALLER_COPIES; +} + #include "gt-pa.h" diff --git a/gcc/config/pa/pa.opt b/gcc/config/pa/pa.opt index 9370b40..c15353d 100644 --- a/gcc/config/pa/pa.opt +++ b/gcc/config/pa/pa.opt @@ -41,6 +41,10 @@ mbig-switch Target Ignore Does nothing. Preserved for backward compatibility. +mcaller-copies +Target Report Mask(CALLER_COPIES) +Caller copies function arguments passed by hidden reference. + mdisable-fpregs Target Report Mask(DISABLE_FPREGS) Disable FP regs. diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 0c61232..b211667 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -763,7 +763,7 @@ Objective-C and Objective-C++ Dialects}. @emph{HPPA Options} @gccoptlist{-march=@var{architecture-type} @gol --mdisable-fpregs -mdisable-indexing @gol +-mcaller-copies -mdisable-fpregs -mdisable-indexing @gol -mfast-indirect-calls -mgas -mgnu-ld -mhp-ld @gol -mfixed-range=@var{register-range} @gol -mjump-in-delay -mlinker-opt -mlong-calls @gol @@ -17465,6 +17465,14 @@ other way around. @opindex mpa-risc-2-0 Synonyms for @option{-march=1.0}, @option{-march=1.1}, and @option{-march=2.0} respectively. +@item -mcaller-copies +@opindex mcaller-copies +The caller copies function arguments passed by hidden reference. This +option should be used with care as it is not compatible with the default +32-bit runtime. However, only aggregates larger than eight bytes are +passed by hidden reference and the option provides better compatibility +with openmp. + @item -mjump-in-delay @opindex mjump-in-delay This option is ignored and provided for compatibility purposes only. |