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tcg: Add TCGContext.emit_before_op

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Allow operations to be emitted via normal expanders
into the middle of the opcode stream.

Tested-by: Jørgen Hansen <Jorgen.Hansen@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2024-03-13 13:32:29 -10:00
parent 5888357942
commit 07843f75fd
2 changed files with 18 additions and 2 deletions
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6
include/tcg/tcg.h
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@ -553,6 +553,12 @@ struct TCGContext {
QTAILQ_HEAD(, TCGOp) ops, free_ops;
QSIMPLEQ_HEAD(, TCGLabel) labels;
/*
* When clear, new ops are added to the tail of @ops.
* When set, new ops are added in front of @emit_before_op.
*/
TCGOp *emit_before_op;
/* Tells which temporary holds a given register.
It does not take into account fixed registers */
TCGTemp *reg_to_temp[TCG_TARGET_NB_REGS];