stmt.c (expand_asm_operands): Twiddle generating_concat_p so that CONCATs are not generated for ASMs.

* stmt.c (expand_asm_operands): Twiddle generating_concat_p
so that CONCATs are not generated for ASMs.
* emit-rtl.c (gen_reg_rtx): Don't generate CONCATs when
not generating_concat_p.
* function.c (pop_function_context_from): Reset
generating_concat_p.
(prepare_function_start): Likewise.
* rtl.c (generating_concat_p): Define.
* rtl.h (generating_concat_p): Declare.
* toplev.c (rest_of_compilation): No CONCATs after RTL generation.

From-SVN: r36088

1 files changed, 3 insertions, 0 deletions

diff --git a/gcc/rtl.c b/gcc/rtl.c
index de28a60..ad89fff 100644
--- a/gcc/rtl.c
+++ b/gcc/rtl.c
@@ -578,6 +578,9 @@ shallow_copy_rtx (orig)
 
 /* This is 1 until after the rtl generation pass.  */
 int rtx_equal_function_value_matters;
+
+/* Nonzero when we are generating CONCATs.  */
+int generating_concat_p;
 
 /* Return 1 if X and Y are identical-looking rtx's.
    This is the Lisp function EQUAL for rtx arguments.  */