From 1b575dc71d765379aa36d4de406c8da4b17c3a5c Mon Sep 17 00:00:00 2001
From: steven <steven@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 19 Sep 2006 21:22:31 +0000
Subject: [PATCH] PR rtl-optimization/21299 * reload1.c
(reload): Purge invalid ASMs in the final pass.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@117061 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 5 +++++
gcc/reload1.c | 14 ++++++++++++++
2 files changed, 19 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5d8aeffa59ad..835c93d3e4e1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2006-09-19 Steven Bosscher <steven@gcc.gnu.org>
+
+ PR rtl-optimization/21299
+ * reload1.c (reload): Purge invalid ASMs in the final pass.
+
2006-09-19 Steve Ellcey <sje@cup.hp.com>
PR 28490
diff --git a/gcc/reload1.c b/gcc/reload1.c
index 04f64488566b..58f77cba520e 100644
--- a/gcc/reload1.c
+++ b/gcc/reload1.c
@@ -1167,6 +1167,20 @@ reload (rtx first, int global)
{
rtx *pnote;
+ /* Clean up invalid ASMs so that they don't confuse later passes.
+ See PR 21299. */
+ if (asm_noperands (PATTERN (insn)) >= 0)
+ {
+ extract_insn (insn);
+ if (!constrain_operands (1))
+ {
+ error_for_asm (insn,
+ "%<asm%> operand has impossible constraints");
+ delete_insn (insn);
+ continue;
+ }
+ }
+
if (CALL_P (insn))
replace_pseudos_in (& CALL_INSN_FUNCTION_USAGE (insn),
VOIDmode, CALL_INSN_FUNCTION_USAGE (insn));
--
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