diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-10-29 14:08:38 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-11-06 08:27:21 -0800 |
| commit | ecfa1877f7e9d300b57492552afed2932ed954d7 (patch) | |
| tree | 6e314dac7da1b5a96699c10601e452f233e8accd /tcg/tcg-op.c | |
| parent | 6046f6e94d8d530ecc28176232479889abbee47e (diff) | |
tcg: Mark tcg_gen_op* as noinline
Encourage the compiler to tail-call rather than inline
across the dozens of opcode expanders.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231029210848.78234-2-richard.henderson@linaro.org>
Diffstat (limited to 'tcg/tcg-op.c')
| -rw-r--r-- | tcg/tcg-op.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index 828eb9ee46..9aed19e957 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -31,20 +31,26 @@ #include "tcg-internal.h" -void tcg_gen_op1(TCGOpcode opc, TCGArg a1) +/* + * Encourage the compiler to tail-call to a function, rather than inlining. + * Minimizes code size across 99 bottles of beer on the wall. + */ +#define NI __attribute__((noinline)) + +void NI tcg_gen_op1(TCGOpcode opc, TCGArg a1) { TCGOp *op = tcg_emit_op(opc, 1); op->args[0] = a1; } -void tcg_gen_op2(TCGOpcode opc, TCGArg a1, TCGArg a2) +void NI tcg_gen_op2(TCGOpcode opc, TCGArg a1, TCGArg a2) { TCGOp *op = tcg_emit_op(opc, 2); op->args[0] = a1; op->args[1] = a2; } -void tcg_gen_op3(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3) +void NI tcg_gen_op3(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3) { TCGOp *op = tcg_emit_op(opc, 3); op->args[0] = a1; @@ -52,7 +58,7 @@ void tcg_gen_op3(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3) op->args[2] = a3; } -void tcg_gen_op4(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, TCGArg a4) +void NI tcg_gen_op4(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, TCGArg a4) { TCGOp *op = tcg_emit_op(opc, 4); op->args[0] = a1; @@ -61,8 +67,8 @@ void tcg_gen_op4(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, TCGArg a4) op->args[3] = a4; } -void tcg_gen_op5(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, - TCGArg a4, TCGArg a5) +void NI tcg_gen_op5(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, + TCGArg a4, TCGArg a5) { TCGOp *op = tcg_emit_op(opc, 5); op->args[0] = a1; @@ -72,8 +78,8 @@ void tcg_gen_op5(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, op->args[4] = a5; } -void tcg_gen_op6(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, - TCGArg a4, TCGArg a5, TCGArg a6) +void NI tcg_gen_op6(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, + TCGArg a4, TCGArg a5, TCGArg a6) { TCGOp *op = tcg_emit_op(opc, 6); op->args[0] = a1; |