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Diffstat (limited to 'gcc/tree-inline.c')
| -rw-r--r-- | gcc/tree-inline.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c index e7fba91..1efc0ed 100644 --- a/gcc/tree-inline.c +++ b/gcc/tree-inline.c @@ -1508,6 +1508,14 @@ setup_one_parameter (copy_body_data *id, tree p, tree value, tree fn, return; } + /* If the value of argument is never used, don't care about initializing + it. */ + if (gimple_in_ssa_p (cfun) && !def && is_gimple_reg (p)) + { + gcc_assert (!value || !TREE_SIDE_EFFECTS (value)); + return; + } + /* Initialize this VAR_DECL from the equivalent argument. Convert the argument to the proper type in case it was promoted. */ if (value) |