openwrt/toolchain/gcc/patches/12.1.0/110-Fix-MIPS-PR-84790.patch
Rui Salvaterra c4bd303086 toolchain: add support for GCC 12
GCC 12.1 is out. Add support for it.

Deleted (upstreamed):
011-v12-configure-define-TARGET_LIBC_GNUSTACK-on-musl.patch
931-libffi-fix-MIPS-softfloat-build-issue.patch

Deleted (unneeded?)
970-macos_arm64-building-fix.patch

Other patches manually rebased due to C++ conversion and consequent file name
changing (.c to .cc).

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
2022-06-01 14:59:49 +02:00

21 lines
686 B
Diff

Fix https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84790.
MIPS16 functions have a static assembler prologue which clobbers
registers v0 and v1. Add these register clobbers to function call
instructions.
--- a/gcc/config/mips/mips.cc
+++ b/gcc/config/mips/mips.cc
@@ -3134,6 +3134,12 @@ mips_emit_call_insn (rtx pattern, rtx or
emit_insn (gen_update_got_version ());
}
+ if (TARGET_MIPS16 && TARGET_USE_GOT)
+ {
+ clobber_reg (&CALL_INSN_FUNCTION_USAGE (insn), MIPS16_PIC_TEMP);
+ clobber_reg (&CALL_INSN_FUNCTION_USAGE (insn), MIPS_PROLOGUE_TEMP (word_mode));
+ }
+
if (TARGET_MIPS16
&& TARGET_EXPLICIT_RELOCS
&& TARGET_CALL_CLOBBERED_GP)