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| author | Richard Biener <rguenther@suse.de> | 2021-08-11 14:10:52 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2021-08-11 16:24:08 +0200 |
| commit | 2cb02e065ff015a69db918eb545a00cd6edf0194 (patch) | |
| tree | 8af19d866577f223043875d9b03eb991b55f2b05 /gcc | |
| parent | e8426554e1375fec2d119ba9cc5feb263db84559 (diff) | |
| download | gcc-2cb02e065ff015a69db918eb545a00cd6edf0194.zip gcc-2cb02e065ff015a69db918eb545a00cd6edf0194.tar.gz gcc-2cb02e065ff015a69db918eb545a00cd6edf0194.tar.bz2 | |
target/101788 - avoid decomposing hard-register "loads"
This avoids decomposing hard-register accesses that masquerade as
loads.
2021-08-11 Richard Biener <rguenther@suse.de>
PR target/101877
* tree-ssa-forwprop.c (pass_forwprop::execute): Do not decompose
hard-register accesses.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/tree-ssa-forwprop.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c index bd64b8e..5b30d4c 100644 --- a/gcc/tree-ssa-forwprop.c +++ b/gcc/tree-ssa-forwprop.c @@ -3190,7 +3190,8 @@ pass_forwprop::execute (function *fun) || (fun->curr_properties & PROP_gimple_lvec)) && gimple_assign_load_p (stmt) && !gimple_has_volatile_ops (stmt) - && !stmt_can_throw_internal (cfun, stmt)) + && !stmt_can_throw_internal (cfun, stmt) + && (!VAR_P (rhs) || !DECL_HARD_REGISTER (rhs))) optimize_vector_load (&gsi); else if (code == COMPLEX_EXPR) |