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| author | Nathan Sidwell <nathan@gcc.gnu.org> | 2015-10-27 20:16:04 +0000 |
|---|---|---|
| committer | Nathan Sidwell <nathan@gcc.gnu.org> | 2015-10-27 20:16:04 +0000 |
| commit | 8ab78162c0dfc65aef769516ba77560566577113 (patch) | |
| tree | bd71d653036a68ca09bc7d09522690d5e4988df5 /gcc/tree-cfg.c | |
| parent | a271b387e6375d5612a2bd8669e0da1ac731e9c3 (diff) | |
| download | gcc-8ab78162c0dfc65aef769516ba77560566577113.zip gcc-8ab78162c0dfc65aef769516ba77560566577113.tar.gz gcc-8ab78162c0dfc65aef769516ba77560566577113.tar.bz2 | |
internal-fn.c (expand_UNIQUE): New.
* internal-fn.c (expand_UNIQUE): New.
* internal-fn.h (enum ifn_unique_kind): New.
* internal-fn.def (IFN_UNIQUE): New.
* target-insns.def (unique): Define.
* gimple.h (gimple_call_internal_unique_p): New.
* gimple.c (gimple_call_same_target_p): Check internal fn
uniqueness.
* tracer.c (ignore_bb_p): Check for IFN_UNIQUE call.
* tree-ssa-threadedge.c
(record_temporary_equivalences_from_stmts): Likewise.
* tree-cfg.c (gmple_call_initialize_ctrl_altering): Likewise.
From-SVN: r229459
Diffstat (limited to 'gcc/tree-cfg.c')
| -rw-r--r-- | gcc/tree-cfg.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c index 40d5eb8..970207d 100644 --- a/gcc/tree-cfg.c +++ b/gcc/tree-cfg.c @@ -487,7 +487,11 @@ gimple_call_initialize_ctrl_altering (gimple *stmt) || ((flags & ECF_TM_BUILTIN) && is_tm_ending_fndecl (gimple_call_fndecl (stmt))) /* BUILT_IN_RETURN call is same as return statement. */ - || gimple_call_builtin_p (stmt, BUILT_IN_RETURN)) + || gimple_call_builtin_p (stmt, BUILT_IN_RETURN) + /* IFN_UNIQUE should be the last insn, to make checking for it + as cheap as possible. */ + || (gimple_call_internal_p (stmt) + && gimple_call_internal_unique_p (stmt))) gimple_call_set_ctrl_altering (stmt, true); else gimple_call_set_ctrl_altering (stmt, false); |