diff options
| author | Alexandre Oliva <oliva@adacore.com> | 2024-01-31 00:13:36 -0300 |
|---|---|---|
| committer | Alexandre Oliva <oliva@gnu.org> | 2024-01-31 00:22:11 -0300 |
| commit | 320fb976e933e8892af905e68de65492568f2a49 (patch) | |
| tree | a5f06afdd5f0392a7ddf25e2ee4f210b6ac06ff9 /gcc/builtins.cc | |
| parent | 35de88e2ed0aa78f6e3306c8560cd6bb15ce0ffe (diff) | |
| download | gcc-320fb976e933e8892af905e68de65492568f2a49.zip gcc-320fb976e933e8892af905e68de65492568f2a49.tar.gz gcc-320fb976e933e8892af905e68de65492568f2a49.tar.bz2 | |
0From: Alexandre Oliva <oliva@adacore.com>
strub: introduce STACK_ADDRESS_OFFSET
Since STACK_POINTER_OFFSET is not necessarily at the boundary between
caller- and callee-owned stack, as desired by
__builtin_stack_address(), and using it as if it were or not causes
problems, introduce a new macro so that ports can define it suitably,
without modifying STACK_POINTER_OFFSET.
for gcc/ChangeLog
PR middle-end/112917
PR middle-end/113100
* builtins.cc (expand_builtin_stack_address): Use
STACK_ADDRESS_OFFSET.
* doc/extend.texi (__builtin_stack_address): Adjust.
* config/sparc/sparc.h (STACK_ADDRESS_OFFSET): Define.
* doc/tm.texi.in (STACK_ADDRESS_OFFSET): Document.
* doc/tm.texi: Rebuilt.
Diffstat (limited to 'gcc/builtins.cc')
| -rw-r--r-- | gcc/builtins.cc | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/gcc/builtins.cc b/gcc/builtins.cc index a0bd82c..1d54ea0 100644 --- a/gcc/builtins.cc +++ b/gcc/builtins.cc @@ -5450,7 +5450,7 @@ expand_builtin_stack_address () rtx ret = convert_to_mode (ptr_mode, copy_to_reg (stack_pointer_rtx), STACK_UNSIGNED); -#ifdef SPARC_STACK_BOUNDARY_HACK +#ifdef STACK_ADDRESS_OFFSET /* Unbias the stack pointer, bringing it to the boundary between the stack area claimed by the active function calling this builtin, and stack ranges that could get clobbered if it called another @@ -5477,8 +5477,7 @@ expand_builtin_stack_address () (caller) function's active area as well, whereas those pushed or allocated temporarily for a call are regarded as part of the callee's stack range, rather than the caller's. */ - if (SPARC_STACK_BOUNDARY_HACK) - ret = plus_constant (ptr_mode, ret, STACK_POINTER_OFFSET); + ret = plus_constant (ptr_mode, ret, STACK_ADDRESS_OFFSET); #endif return force_reg (ptr_mode, ret); |