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| author | Rong Xu <xur@google.com> | 2014-10-13 15:06:37 -0700 |
|---|---|---|
| committer | Rong Xu <xur@google.com> | 2014-10-13 15:06:37 -0700 |
| commit | c16bf8984b9f89eeb79abd9a3789151f5c98d02f (patch) | |
| tree | f4f01e14d95a1d713169e3064537758e1d594197 /gcc-4.9/gcc/config/aarch64/aarch64.h | |
| parent | c5748954561f492fe1c4ea772e0290079af9960b (diff) | |
| download | toolchain_gcc-c16bf8984b9f89eeb79abd9a3789151f5c98d02f.tar.gz toolchain_gcc-c16bf8984b9f89eeb79abd9a3789151f5c98d02f.tar.bz2 toolchain_gcc-c16bf8984b9f89eeb79abd9a3789151f5c98d02f.zip | |
[gcc-4.9] fix for for cortex-a53 erratum 835769
This patch cherry picks r216116 from google/gcc-4_9 branch (which
is r216077 and r216079 from upstream gcc-4_9 branch).
Tested the built compiler with aarch64 devicde.
Change-Id: I75745fe35aae83bc3b64135a2efc7f8ffd9cfb1f
Diffstat (limited to 'gcc-4.9/gcc/config/aarch64/aarch64.h')
| -rw-r--r-- | gcc-4.9/gcc/config/aarch64/aarch64.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/aarch64/aarch64.h b/gcc-4.9/gcc/config/aarch64/aarch64.h index 2fd6df4af..77b2bb9b4 100644 --- a/gcc-4.9/gcc/config/aarch64/aarch64.h +++ b/gcc-4.9/gcc/config/aarch64/aarch64.h @@ -481,6 +481,15 @@ enum target_cpus (TARGET_CPU_generic | (AARCH64_CPU_DEFAULT_FLAGS << 6)) #endif +/* If inserting NOP before a mult-accumulate insn remember to adjust the + length so that conditional branching code is updated appropriately. */ +#define ADJUST_INSN_LENGTH(insn, length) \ + if (aarch64_madd_needs_nop (insn)) \ + length += 4; + +#define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) \ + aarch64_final_prescan_insn (INSN); \ + /* The processor for which instructions should be scheduled. */ extern enum aarch64_processor aarch64_tune; |