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| author | Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp> | 2022-06-20 04:13:56 +0900 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2022-06-19 14:07:09 -0700 |
| commit | 46880cd8be7c307f147a8785ac8f58e04a35d34e (patch) | |
| tree | d8d70ca773a746b30a0322af95d7b722943aa324 /gcc/config/xtensa | |
| parent | 75ab2f0ebd3c6ab678fea03906186068b89f9fbc (diff) | |
| download | gcc-46880cd8be7c307f147a8785ac8f58e04a35d34e.zip gcc-46880cd8be7c307f147a8785ac8f58e04a35d34e.tar.gz gcc-46880cd8be7c307f147a8785ac8f58e04a35d34e.tar.bz2 | |
xtensa: Fix RTL insn cost estimation about relaxed MOVI instructions
These instructions will all be converted to L32R ones with litpool entries
by the assembler.
gcc/ChangeLog:
* config/xtensa/xtensa.cc (xtensa_is_insn_L32R_p):
Consider relaxed MOVI instructions as L32R.
Diffstat (limited to 'gcc/config/xtensa')
| -rw-r--r-- | gcc/config/xtensa/xtensa.cc | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc index 2c534ff..13f2b2b 100644 --- a/gcc/config/xtensa/xtensa.cc +++ b/gcc/config/xtensa/xtensa.cc @@ -4286,17 +4286,23 @@ xtensa_is_insn_L32R_p (const rtx_insn *insn) { rtx x = PATTERN (insn); - if (GET_CODE (x) == SET) + if (GET_CODE (x) != SET) + return false; + + x = XEXP (x, 1); + if (MEM_P (x)) { - x = SET_SRC (x); - if (MEM_P (x)) - { - x = XEXP (x, 0); - return (SYMBOL_REF_P (x) || CONST_INT_P (x)) - && CONSTANT_POOL_ADDRESS_P (x); - } + x = XEXP (x, 0); + return (SYMBOL_REF_P (x) || CONST_INT_P (x)) + && CONSTANT_POOL_ADDRESS_P (x); } + /* relaxed MOVI instructions, that will be converted to L32R by the + assembler. */ + if (CONST_INT_P (x) + && ! xtensa_simm12b (INTVAL (x))) + return true; + return false; } |