diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2008-04-16 18:01:57 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2008-04-16 18:01:57 +0200 |
| commit | 12e19e0588445040f55e4299a69904afd0cd1b22 (patch) | |
| tree | eb8633e764cac5e80e5b5885d5b624e8fbfb7c0e | |
| parent | 3d5e00a036cec0a70c46c0f2617de26849c7d46b (diff) | |
| download | gcc-12e19e0588445040f55e4299a69904afd0cd1b22.zip gcc-12e19e0588445040f55e4299a69904afd0cd1b22.tar.gz gcc-12e19e0588445040f55e4299a69904afd0cd1b22.tar.bz2 | |
re PR c/35739 (ICE with _Decimal128 and va_list)
PR c/35739
* tree-nrv.c (tree_nrv): Don't optimize if result_type is GIMPLE
reg type.
* gcc.dg/dfp/pr35739.c: New test.
From-SVN: r134351
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/dfp/pr35739.c | 16 | ||||
| -rw-r--r-- | gcc/tree-nrv.c | 7 |
4 files changed, 29 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3797049..57d334c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,9 @@ 2008-04-16 Jakub Jelinek <jakub@redhat.com> + PR c/35739 + * tree-nrv.c (tree_nrv): Don't optimize if result_type is GIMPLE + reg type. + PR tree-optimization/35899 * tree-inline.c (expand_call_inline): Use GIMPLE_STMT_OPERAND rather than TREE_OPERAND. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7ba05e8..85f4cb3 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,8 @@ 2008-04-16 Jakub Jelinek <jakub@redhat.com> + PR c/35739 + * gcc.dg/dfp/pr35739.c: New test. + PR tree-optimization/35899 * gcc.dg/pr35899.c: New test. diff --git a/gcc/testsuite/gcc.dg/dfp/pr35739.c b/gcc/testsuite/gcc.dg/dfp/pr35739.c new file mode 100644 index 0000000..d4e1839 --- /dev/null +++ b/gcc/testsuite/gcc.dg/dfp/pr35739.c @@ -0,0 +1,16 @@ +/* PR c/35739 */ +/* { dg-do compile { target *-*-linux* } } */ +/* { dg-options "-O -fpreprocessed -fmudflap" } */ + +_Decimal128 +foo (int n, ...) +{ + int i; + _Decimal128 j = 0; + __builtin_va_list ap; + __builtin_va_start (ap, n); + for (i = 0; i < n; i++) + j += __builtin_va_arg (ap, _Decimal128); + __builtin_va_end (ap); + return j; +} diff --git a/gcc/tree-nrv.c b/gcc/tree-nrv.c index 7330d28..35928ea 100644 --- a/gcc/tree-nrv.c +++ b/gcc/tree-nrv.c @@ -1,5 +1,5 @@ /* Language independent return value optimizations - Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc. + Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc. This file is part of GCC. @@ -115,6 +115,11 @@ tree_nrv (void) if (!aggregate_value_p (result, current_function_decl)) return 0; + /* If a GIMPLE type is returned in memory, finalize_nrv_r might create + non-GIMPLE. */ + if (is_gimple_reg_type (result_type)) + return 0; + /* Look through each block for assignments to the RESULT_DECL. */ FOR_EACH_BB (bb) { |