[gcc r12-5158] tree-optimization/103190 - fix assert in reassoc stmt placement with asm

[gcc r12-5158] tree-optimization/103190 - fix assert in reassoc stmt placement with asm

[Richard Biener]

https://gcc.gnu.org/g:fac4c4bdab1735bd8a87e37c519f0260e4769f2a

commit r12-5158-gfac4c4bdab1735bd8a87e37c519f0260e4769f2a
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Nov 11 15:12:32 2021 +0100

    tree-optimization/103190 - fix assert in reassoc stmt placement with asm
    
    This makes sure to only assert we don't run into a asm goto when
    inserting a stmt in reassoc, matching the condition in
    can_reassociate_p.  We can handle EH edges from an asm just like
    EH edges from any other stmt.
    
    2021-11-11  Richard Biener  <rguenther@suse.de>
    
            PR tree-optimization/103190
            * tree-ssa-reassoc.c (insert_stmt_after): Only assert on asm goto.

Diff:
---
 gcc/tree-ssa-reassoc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c
index 6a555e7c553..65316223047 100644
--- a/gcc/tree-ssa-reassoc.c
+++ b/gcc/tree-ssa-reassoc.c
@@ -1515,7 +1515,8 @@ insert_stmt_after (gimple *stmt, gimple *insert_point)
       gsi_insert_after (&gsi, stmt, GSI_NEW_STMT);
       return;
     }
-  else if (gimple_code (insert_point) == GIMPLE_ASM)
+  else if (gimple_code (insert_point) == GIMPLE_ASM
+	   && gimple_asm_nlabels (as_a <gasm *> (insert_point)) != 0)
     /* We have no idea where to insert - it depends on where the
        uses will be placed.  */
     gcc_unreachable ();