[Bug target/91229] RISC-V ABI problem with zero-length bit-fields and float struct fields
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91229 --- Comment #5 from CVS Commits --- The master branch has been updated by Jakub Jelinek : https://gcc.gnu.org/g:98afdc3e2bfccf0a1337013b54f2c5634ef40ee5 commit r12-7655-g98afdc3e2bfccf0a1337013b54f2c5634ef40ee5 Author: Jakub Jelinek Date: Tue Mar 15 13:34:33 2022 +0100 riscv: Allow -Wno-psabi to turn off ABI warnings [PR91229] While checking if all targets honor -Wno-psabi for ABI related warnings or messages, I found that almost all do, except for riscv. In the testsuite when we want to ignore ABI related messages we typically use -Wno-psabi -w, but it would be nice to get rid of those -w uses eventually. The following allows silencing those warnings with -Wno-psabi rather than just -w even on riscv. 2022-03-15 Jakub Jelinek PR target/91229 * config/riscv/riscv.cc (riscv_pass_aggregate_in_fpr_pair_p, riscv_pass_aggregate_in_fpr_and_gpr_p): Pass OPT_Wpsabi instead of 0 to warning calls.
[Bug target/91229] RISC-V ABI problem with zero-length bit-fields and float struct fields
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91229 Jim Wilson changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #4 from Jim Wilson --- Fixed on mainline.
[Bug target/91229] RISC-V ABI problem with zero-length bit-fields and float struct fields
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91229 --- Comment #3 from Jim Wilson --- Author: wilson Date: Thu Aug 8 19:04:56 2019 New Revision: 274215 URL: https://gcc.gnu.org/viewcvs?rev=274215=gcc=rev Log: RISC-V: Fix C ABI for flattened struct with 0-length bitfield. gcc/ PR target/91229 * config/riscv/riscv.c (riscv_flatten_aggregate_field): New arg ignore_zero_width_bit_field_p. Skip zero size bitfields when true. Pass into recursive call. (riscv_flatten_aggregate_argument): New arg. Pass to riscv_flatten_aggregate_field. (riscv_pass_aggregate_in_fpr_pair_p): New local warned. Call riscv_flatten_aggregate_argument twice, with false and true as last arg. Process result twice. Compare results and warn if different. (riscv_pass_aggregate_in_fpr_and_gpr_p): Likewise. gcc/testsuite/ * gcc.target/riscv/flattened-struct-abi-1.c: New test. * gcc.target/riscv/flattened-struct-abi-2.c: New test. Added: trunk/gcc/testsuite/gcc.target/riscv/flattened-struct-abi-1.c trunk/gcc/testsuite/gcc.target/riscv/flattened-struct-abi-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/riscv/riscv.c trunk/gcc/testsuite/ChangeLog
[Bug target/91229] RISC-V ABI problem with zero-length bit-fields and float struct fields
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91229 --- Comment #2 from Jim Wilson --- Created attachment 46617 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46617=edit proposed patch to change ABI and warn for affected structs
[Bug target/91229] RISC-V ABI problem with zero-length bit-fields and float struct fields
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91229 Jim Wilson changed: What|Removed |Added Target||riscv*-*-* Status|UNCONFIRMED |NEW Last reconfirmed||2019-07-22 Assignee|unassigned at gcc dot gnu.org |wilson at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Jim Wilson --- There is a psABI discussion about the problem at https://github.com/riscv/riscv-elf-psabi-doc/issues/99
