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| author | Felix Fietkau <nbd@nbd.name> | 2018-03-12 10:28:03 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2018-03-12 12:19:07 +0100 |
| commit | 16cec7ae67d9a1e88cb30b45f45596ba753b2afa (patch) | |
| tree | d87f443c4d8a965b9b72f127d13ec12d78d88e56 /toolchain/gcc/patches/7.3.0/110-Fix-MIPS-PR-84790.patch | |
| parent | fe98f2679c2e73245c06a4b6a404abba4a915930 (diff) | |
| download | upstream-16cec7ae67d9a1e88cb30b45f45596ba753b2afa.tar.gz upstream-16cec7ae67d9a1e88cb30b45f45596ba753b2afa.tar.bz2 upstream-16cec7ae67d9a1e88cb30b45f45596ba753b2afa.zip | |
toolchain/gcc: merge pending fix for miscompiled MIPS16 code issue (GCC PR 84790)
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'toolchain/gcc/patches/7.3.0/110-Fix-MIPS-PR-84790.patch')
| -rw-r--r-- | toolchain/gcc/patches/7.3.0/110-Fix-MIPS-PR-84790.patch | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/toolchain/gcc/patches/7.3.0/110-Fix-MIPS-PR-84790.patch b/toolchain/gcc/patches/7.3.0/110-Fix-MIPS-PR-84790.patch new file mode 100644 index 0000000000..643c5e68a8 --- /dev/null +++ b/toolchain/gcc/patches/7.3.0/110-Fix-MIPS-PR-84790.patch @@ -0,0 +1,20 @@ +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.c ++++ b/gcc/config/mips/mips.c +@@ -3098,6 +3098,12 @@ 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) |