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-rw-r--r--gcc/cfgexpand.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index 5c23b72..dd163a5 100644
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -1652,10 +1652,12 @@ expand_used_vars (void)
debug info, there is no need to do so if optimization is disabled
because all the SSA_NAMEs based on these DECLs have been coalesced
into a single partition, which is thus assigned the canonical RTL
- location of the DECLs. */
+ location of the DECLs. If in_lto_p, we can't rely on optimize,
+ a function could be compiled with -O1 -flto first and only the
+ link performed at -O0. */
if (TREE_CODE (SSA_NAME_VAR (var)) == VAR_DECL)
expand_one_var (var, true, true);
- else if (DECL_IGNORED_P (SSA_NAME_VAR (var)) || optimize)
+ else if (DECL_IGNORED_P (SSA_NAME_VAR (var)) || optimize || in_lto_p)
{
/* This is a PARM_DECL or RESULT_DECL. For those partitions that
contain the default def (representing the parm or result itself)