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authorSteven Bosscher <steven@gcc.gnu.org>2006-09-19 21:22:31 +0000
committerSteven Bosscher <steven@gcc.gnu.org>2006-09-19 21:22:31 +0000
commitd63e138968dd44f2d1894c12e460816b1d1bdc13 (patch)
tree919ac27d6e44a731fb1b62bb3a893ed4c0dcd946 /gcc/reload1.c
parent9f0b9edcd75599436998606e0ceca5cbce69a94d (diff)
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re PR rtl-optimization/21299 (internal error on invalid asm statement)
PR rtl-optimization/21299 * reload1.c (reload): Purge invalid ASMs in the final pass. From-SVN: r117061
Diffstat (limited to 'gcc/reload1.c')
-rw-r--r--gcc/reload1.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c
index 04f6448..58f77cb 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));