diff options
| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-30 01:22:07 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-30 01:22:07 +0000 |
| commit | fbc51f36e328057ba98e695ccdab52856ca68796 (patch) | |
| tree | bfe96a23c68a90b5da0a5b5bfb8294fbe08ac645 /gcc/tree-ssa-copy.c | |
| parent | a8b2a8d55ccf7783b607c4629292af7fc41f6a28 (diff) | |
| download | gcc-fbc51f36e328057ba98e695ccdab52856ca68796.tar.gz | |
PR 17739
* tree-gimple.c (is_gimple_reg): Reject hard registers.
(is_gimple_asm_val): New.
* tree-gimple.h (is_gimple_asm_val): Declare.
* gimplify.c (gimplify_asm_expr): Use it.
* tree-pretty-print.c (print_declaration): Dump hard regs.
* tree-outof-ssa.c (check_replaceable): Don't check for hard regs.
* tree-ssa-copyrename.c (copy_rename_partition_coalesce): Likewise.
* tree-ssa-pre.c (is_undefined_value): Likewise.
* tree-ssa-copy.c (may_propagate_copy): Likewise.
(may_propagate_copy_into_asm): Protect DECL_HARD_REGISTER.
* tree-ssa.c (warn_uninit): Likewise.
* tree.h (DECL_HARD_REGISTER): Check for VAR_DECL.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@88321 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-copy.c')
| -rw-r--r-- | gcc/tree-ssa-copy.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/tree-ssa-copy.c b/gcc/tree-ssa-copy.c index 63a3c20417d..dc41e8e058e 100644 --- a/gcc/tree-ssa-copy.c +++ b/gcc/tree-ssa-copy.c @@ -145,11 +145,10 @@ may_propagate_copy (tree dest, tree orig) && SSA_NAME_OCCURS_IN_ABNORMAL_PHI (orig)) return false; - /* If DEST is an SSA_NAME that flows from an abnormal edge or if it - represents a hard register, then it cannot be replaced. */ + /* If DEST is an SSA_NAME that flows from an abnormal edge, then it + cannot be replaced. */ if (TREE_CODE (dest) == SSA_NAME - && (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (dest) - || DECL_HARD_REGISTER (SSA_NAME_VAR (dest)))) + && SSA_NAME_OCCURS_IN_ABNORMAL_PHI (dest)) return false; /* Anything else is OK. */ @@ -163,6 +162,7 @@ may_propagate_copy_into_asm (tree dest) { /* Hard register operands of asms are special. Do not bypass. */ return !(TREE_CODE (dest) == SSA_NAME + && TREE_CODE (SSA_NAME_VAR (dest)) == VAR_DECL && DECL_HARD_REGISTER (SSA_NAME_VAR (dest))); } |