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| author | Xi Ruoyao <xry111@mengyan1223.wang> | 2021-02-17 11:57:13 +0000 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2021-02-17 11:57:13 +0000 |
| commit | 06505e701dcfdb1b9855601d6cf0aa1caea62975 (patch) | |
| tree | a6c1d2b7c0afff9075d4791ee2e20856d936239d /gcc/config/mips | |
| parent | 78a6d0e30d7950216dc0c5be5d65d0cbed13924c (diff) | |
| download | gcc-06505e701dcfdb1b9855601d6cf0aa1caea62975.zip gcc-06505e701dcfdb1b9855601d6cf0aa1caea62975.tar.gz gcc-06505e701dcfdb1b9855601d6cf0aa1caea62975.tar.bz2 | |
mips: Avoid out-of-bounds access in mips_symbol_insns [PR98491]
An invalid use of MSA_SUPPORTED_MODE_P was causing an ICE on
mips64el with -mmsa. The detailed analysis is posted on bugzilla.
gcc/ChangeLog:
2021-02-17 Xi Ruoyao <xry111@mengyan1223.wang>
PR target/98491
* config/mips/mips.c (mips_symbol_insns): Do not use
MSA_SUPPORTED_MODE_P if mode is MAX_MACHINE_MODE.
Diffstat (limited to 'gcc/config/mips')
| -rw-r--r-- | gcc/config/mips/mips.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index ebb04b7..8bd2d29 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -2381,7 +2381,7 @@ mips_symbol_insns (enum mips_symbol_type type, machine_mode mode) { /* MSA LD.* and ST.* cannot support loading symbols via an immediate operand. */ - if (MSA_SUPPORTED_MODE_P (mode)) + if (mode != MAX_MACHINE_MODE && MSA_SUPPORTED_MODE_P (mode)) return 0; return mips_symbol_insns_1 (type, mode) * (TARGET_MIPS16 ? 2 : 1); |