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authorDavid Malcolm <dmalcolm@redhat.com>2014-08-19 00:26:56 +0000
committerDavid Malcolm <dmalcolm@gcc.gnu.org>2014-08-19 00:26:56 +0000
commitef0fe503088eaf82df1665f7e32b090c5f3b5374 (patch)
treeb36c1adf97283d550b96e06e464780e67b445c90 /gcc/basic-block.h
parenta140b66ba7419e17673cc2bbd5facb8c846f0b0c (diff)
Replace BB_HEAD et al macros with functions
gcc/ 2014-08-19 David Malcolm <dmalcolm@redhat.com> * basic-block.h (BB_HEAD): Convert to a function. Strengthen the return type from rtx to rtx_insn *. (BB_END): Likewise. (BB_HEADER): Likewise. (BB_FOOTER): Likewise. (SET_BB_HEAD): Convert to a function. (SET_BB_END): Likewise. (SET_BB_HEADER): Likewise. (SET_BB_FOOTER): Likewise. * cfgrtl.c (BB_HEAD): New function, from macro of same name. Strengthen the return type from rtx to rtx_insn *. For now, this is done by adding a checked cast, but this will eventually become a field lookup. (BB_END): Likewise. (BB_HEADER): Likewise. (BB_FOOTER): Likewise. (SET_BB_HEAD): New function, from macro of same name. This is intended for use as an lvalue, and so returns an rtx& to allow in-place modification. (SET_BB_END): Likewise. (SET_BB_HEADER): Likewise. (SET_BB_FOOTER): Likewise. From-SVN: r214126
Diffstat (limited to 'gcc/basic-block.h')
-rw-r--r--gcc/basic-block.h26
1 files changed, 15 insertions, 11 deletions
diff --git a/gcc/basic-block.h b/gcc/basic-block.h
index 98cb00c8d24..d6aebb45df7 100644
--- a/gcc/basic-block.h
+++ b/gcc/basic-block.h
@@ -368,17 +368,21 @@ struct GTY(()) control_flow_graph {
/* Stuff for recording basic block info. */
-/* These macros are currently split into two:
- one suitable for reading, and for writing.
- These will become functions in a follow-up patch. */
-#define BB_HEAD(B) (((const_basic_block)B)->il.x.head_)
-#define SET_BB_HEAD(B) (B)->il.x.head_
-#define BB_END(B) (((const rtl_bb_info *)(B)->il.x.rtl)->end_)
-#define SET_BB_END(B) (B)->il.x.rtl->end_
-#define BB_HEADER(B) (((const rtl_bb_info *)(B)->il.x.rtl)->header_)
-#define SET_BB_HEADER(B) (B)->il.x.rtl->header_
-#define BB_FOOTER(B) (((const rtl_bb_info *)(B)->il.x.rtl)->footer_)
-#define SET_BB_FOOTER(B) (B)->il.x.rtl->footer_
+/* For now, these will be functions (so that they can include checked casts
+ to rtx_insn. Once the underlying fields are converted from rtx
+ to rtx_insn, these can be converted back to macros. */
+
+extern rtx_insn *BB_HEAD (const_basic_block bb);
+extern rtx& SET_BB_HEAD (basic_block bb);
+
+extern rtx_insn *BB_END (const_basic_block bb);
+extern rtx& SET_BB_END (basic_block bb);
+
+extern rtx_insn *BB_HEADER (const_basic_block bb);
+extern rtx& SET_BB_HEADER (basic_block bb);
+
+extern rtx_insn *BB_FOOTER (const_basic_block bb);
+extern rtx& SET_BB_FOOTER (basic_block bb);
/* Special block numbers [markers] for entry and exit.
Neither of them is supposed to hold actual statements. */