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re PR ipa/87024 (ICE in fold_stmt_1)

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2018-08-23  Richard Biener  <rguenther@suse.de>

	PR middle-end/87024
	* tree-inline.c (copy_bb): Drop unused __builtin_va_arg_pack_len
	calls.

	* gcc.dg/pr87024.c: New testcase.

From-SVN: r263805
This commit is contained in:
Richard Biener 2018-08-23 09:29:45 +00:00 • committed by Richard Biener
parent e25c95ef2a
commit 60d91c7fae
4 changed files with 32 additions and 1 deletions
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6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2018-08-23 Richard Biener <rguenther@suse.de>
PR middle-end/87024
* tree-inline.c (copy_bb): Drop unused __builtin_va_arg_pack_len
calls.
2018-08-23 Richard Sandiford <richard.sandiford@arm.com>
* config/aarch64/aarch64.c (aarch64_evpc_sve_tbl): Fix handling

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2018-08-23 Richard Biener <rguenther@suse.de>
PR middle-end/87024
* gcc.dg/pr87024.c: New testcase.
2018-08-23 Richard Sandiford <richard.sandiford@arm.com>
* gcc.dg/vect/no-vfa-vect-depend-2.c: Remove XFAIL.

14
gcc/testsuite/gcc.dg/pr87024.c Normal file
View file

@ -0,0 +1,14 @@
/* { dg-do compile } */
/* { dg-options "-O -fno-tree-dce" } */
static inline void __attribute__((always_inline))
mp ()
{
(void) __builtin_va_arg_pack_len ();
}
void
ui (void)
{
mp ();
}

8
gcc/tree-inline.c
View file

@ -1951,7 +1951,13 @@ copy_bb (copy_body_data *id, basic_block bb,
for (p = DECL_ARGUMENTS (id->src_fn); p; p = DECL_CHAIN (p))
nargs--;
if (!gimple_call_va_arg_pack_p (id->call_stmt))
if (!gimple_call_lhs (stmt))
{
/* Drop unused calls. */
gsi_remove (&copy_gsi, false);
continue;
}
else if (!gimple_call_va_arg_pack_p (id->call_stmt))
{
count = build_int_cst (integer_type_node, nargs);
new_stmt = gimple_build_assign (gimple_call_lhs (stmt), count);