On 1/1/25 10:02 AM, Jiaxun Yang wrote:
Implement fenv rouding and exceptions for soft-fp, as per SuperH
arch specification.
No new tests required, as it's already covered by many torture tests
with fenv_exceptions.
PR target/118257
libgcc/ChangeLog:
* config/sh/sfp-machine.h (_FPU_GETCW): Implement with builtin.
(_FPU_SETCW): Likewise.
(FP_EX_ENABLE_SHIFT): Derive from arch spec.
(FP_EX_CAUSE_SHIFT): Likewise.
(FP_RND_MASK): Likewise.
(FP_EX_INVALID): Likewise.
(FP_EX_DIVZERO): Likewise.
(FP_EX_ALL): Likewise.
(FP_EX_OVERFLOW): Likewise.
(FP_EX_UNDERFLOW): Likewise.
(FP_EX_INEXACT): Likewise.
(_FP_DECL_EX): Declear default FCSR value.
(FP_RND_NEAREST): Derive from arch spec.
(FP_RND_ZERO): Likewise.
(FP_INIT_ROUNDMODE): Likewise.
(FP_ROUNDMODE): Likewise.
(FP_TRAPPING_EXCEPTIONS): Likewise.
(FP_HANDLE_EXCEPTIONS): Implement with _FPU_SETCW.
I've pushed to the trunk as well as the assumption that you've got these
various constants right. Oleg, hope I'm not stepping on your toes here,
I'm just starting to work through some of the safer gcc-16 stuff.
jeff
