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| author | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2020-11-13 20:17:42 +0100 |
|---|---|---|
| committer | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2020-11-17 18:03:24 +0100 |
| commit | 09474b0a451bd4e3baea5e1a5e04f9b28f644bb3 (patch) | |
| tree | 70b77d62b9a625e04398903dc1db51e7fa793a8e /simplify.c | |
| parent | 5a7a06698fe2cd4ccb8d3f1a8585c70e6d8f7531 (diff) | |
| download | sparse-dev-09474b0a451bd4e3baea5e1a5e04f9b28f644bb3.tar.gz | |
cfg: add missing REPEAT_CFG_CLEANUP
simplify_branch() & insert_branch() convert a conditional branch
into an unconditional one, removing a child which may then
become unreachable.
However, these function doesn't set REPEAT_CFG_CLEANUP and the
unreachable child may not be removed.
Fix this by setting the missing REPEAT_CFG_CLEANUP in these functions.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Diffstat (limited to 'simplify.c')
| -rw-r--r-- | simplify.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -2048,7 +2048,7 @@ static int simplify_branch(struct instruction *insn) kill_use(&insn->cond); insn->cond = NULL; insn->opcode = OP_BR; - return REPEAT_CSE; + return REPEAT_CSE|REPEAT_CFG_CLEANUP; } /* Conditional on a SETNE $0 or SETEQ $0 */ |