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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-08-24 07:38:39 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-10-27 17:11:22 -0700 |
| commit | d0ed5151b11b12e9e2ca3c9adde2fd4444588948 (patch) | |
| tree | 9d1b03218fc23b9fd2f0948678bca238143a18c4 /tcg | |
| parent | dc84988a5f4147b8c1f90ed4cdcf5c57f06749cd (diff) | |
| download | qemu-d0ed5151b11b12e9e2ca3c9adde2fd4444588948.zip qemu-d0ed5151b11b12e9e2ca3c9adde2fd4444588948.tar.gz qemu-d0ed5151b11b12e9e2ca3c9adde2fd4444588948.tar.bz2 | |
tcg/optimize: Move prev_mb into OptContext
This will expose the variable to subroutines that
will be broken out of tcg_optimize.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/optimize.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/tcg/optimize.c b/tcg/optimize.c index 627a5b3..b875d76 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -46,6 +46,7 @@ typedef struct TempOptInfo { typedef struct OptContext { TCGContext *tcg; + TCGOp *prev_mb; TCGTempSet temps_used; } OptContext; @@ -609,7 +610,7 @@ static bool swap_commutative2(TCGArg *p1, TCGArg *p2) void tcg_optimize(TCGContext *s) { int nb_temps, nb_globals, i; - TCGOp *op, *op_next, *prev_mb = NULL; + TCGOp *op, *op_next; OptContext ctx = { .tcg = s }; /* Array VALS has an element for each temp. @@ -1566,7 +1567,7 @@ void tcg_optimize(TCGContext *s) } /* Eliminate duplicate and redundant fence instructions. */ - if (prev_mb) { + if (ctx.prev_mb) { switch (opc) { case INDEX_op_mb: /* Merge two barriers of the same type into one, @@ -1580,7 +1581,7 @@ void tcg_optimize(TCGContext *s) * barrier. This is stricter than specified but for * the purposes of TCG is better than not optimizing. */ - prev_mb->args[0] |= op->args[0]; + ctx.prev_mb->args[0] |= op->args[0]; tcg_op_remove(s, op); break; @@ -1597,11 +1598,11 @@ void tcg_optimize(TCGContext *s) case INDEX_op_qemu_st_i64: case INDEX_op_call: /* Opcodes that touch guest memory stop the optimization. */ - prev_mb = NULL; + ctx.prev_mb = NULL; break; } } else if (opc == INDEX_op_mb) { - prev_mb = op; + ctx.prev_mb = op; } } } |