diff options
| author | Richard Biener <rguenther@suse.de> | 2024-04-26 15:47:13 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2024-06-21 11:20:43 +0200 |
| commit | a43c9bea7bd80af33ae116e7197f814ad911857e (patch) | |
| tree | eb1456a7a50da7e957d4b4e563b144d32e7c83ad | |
| parent | dae4d8ee395fbf0fabacc3dd6df7b1588312203f (diff) | |
| download | gcc-a43c9bea7bd80af33ae116e7197f814ad911857e.zip gcc-a43c9bea7bd80af33ae116e7197f814ad911857e.tar.gz gcc-a43c9bea7bd80af33ae116e7197f814ad911857e.tar.bz2 | |
middle-end/114734 - wrong code with expand_call_mem_ref
When expand_call_mem_ref looks at the definition of the address
argument to eventually expand a &TARGET_MEM_REF argument together
with a masked load it fails to honor constraints imposed by SSA
coalescing decisions. The following fixes this.
PR middle-end/114734
* internal-fn.c (expand_call_mem_ref): Use
get_gimple_for_ssa_name to get at the def stmt of the address
argument to honor SSA coalescing constraints.
(cherry picked from commit 20ebcaf826c91ddaf2aac35417ec1e5e6d31ad50)
| -rw-r--r-- | gcc/internal-fn.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gcc/internal-fn.c b/gcc/internal-fn.c index dc4337c..ebd3da3 100644 --- a/gcc/internal-fn.c +++ b/gcc/internal-fn.c @@ -51,6 +51,11 @@ along with GCC; see the file COPYING3. If not see #include "ssa-iterators.h" #include "explow.h" #include "rtl-iter.h" +#include "tree-ssa-live.h" +#include "tree-outof-ssa.h" + +/* For lang_hooks.types.type_for_mode. */ +#include "langhooks.h" /* The names of each internal function, indexed by function number. */ const char *const internal_fn_name_array[] = { @@ -2677,8 +2682,8 @@ expand_call_mem_ref (tree type, gcall *stmt, int index) tree tmp = addr; if (TREE_CODE (tmp) == SSA_NAME) { - gimple *def = SSA_NAME_DEF_STMT (tmp); - if (gimple_assign_single_p (def)) + gimple *def = get_gimple_for_ssa_name (tmp); + if (def && gimple_assign_single_p (def)) tmp = gimple_assign_rhs1 (def); } |