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| author | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2020-11-21 13:09:36 +0100 |
|---|---|---|
| committer | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2020-11-21 23:05:03 +0100 |
| commit | 45e0e859a9cf2d14546dd5597a777926087928f0 (patch) | |
| tree | ae6bd62a48241896b4708b704f37251973aecd50 /opcode.def | |
| parent | 1221dc1c8c4299c57bb53a7b0b8a8e4e8729f9d6 (diff) | |
| download | sparse-dev-45e0e859a9cf2d14546dd5597a777926087928f0.tar.gz | |
add a new instruction for label-as-value
Convert OP_SETVAL of a label into a new instruction: OP_LABEL.
There is 2 reasons to do this:
*) there is slightly less checking to be done in later phases
(since OP_SETVAL can be for labels but also strings)
*) OP_SETVAL is CSEd but this is largely useless because this
instruction is hashed on the expression's address and these
are (most) often not shared. With a separate instruction
for label expressions, their CSE is now OK because the hashing
is done on the BB.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Diffstat (limited to 'opcode.def')
| -rw-r--r-- | opcode.def | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -98,6 +98,7 @@ OPCODE(STORE, BADOP, BADOP, BADOP, BADOP, 1, OPF_NONE) /* Other */ OPCODE(PHISOURCE, BADOP, BADOP, BADOP, BADOP, 1, OPF_TARGET) OPCODE(PHI, BADOP, BADOP, BADOP, BADOP, 0, OPF_TARGET) +OPCODE(LABEL, BADOP, BADOP, BADOP, BADOP, 0, OPF_TARGET) OPCODE(SETVAL, BADOP, BADOP, BADOP, BADOP, 0, OPF_TARGET) OPCODE(SETFVAL, BADOP, BADOP, BADOP, BADOP, 0, OPF_TARGET) OPCODE(CALL, BADOP, BADOP, BADOP, BADOP, 1, OPF_TARGET) |