Hi,
this patch avoids degeneration of inliner for function containing empty
volatile asm statement.
Bootstrapped/regtested x86_64-linux, comitted.
PR ipa/60243
* tree-inline.c (estimate_num_insns): Set to 1 at least.
Index: ../../gcc/tree-inline.c
===================================================================
--- ../../gcc/tree-inline.c (revision 254929)
+++ ../../gcc/tree-inline.c (working copy)
@@ -4100,7 +4100,7 @@ estimate_num_insns (gimple *stmt, eni_we
with very long asm statements. */
if (count > 1000)
count = 1000;
- return count;
+ return MAX (1, count);
}
case GIMPLE_RESX:
