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| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/calls.c | 4 |
2 files changed, 8 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e5e2b8e..295e266 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2013-01-12 Tom de Vries <tom@codesourcery.com> + + PR middle-end/55890 + * calls.c (expand_call): Check if arg_nr is valid. + 2013-01-11 Michael Meissner <meissner@linux.vnet.ibm.com> * doc/extend.texi (X86 Built-in Functions): Add whitespace in diff --git a/gcc/calls.c b/gcc/calls.c index 94628af..dd034b4 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -3134,7 +3134,9 @@ expand_call (tree exp, rtx target, int ignore) int arg_nr = return_flags & ERF_RETURN_ARG_MASK; if (PUSH_ARGS_REVERSED) arg_nr = num_actuals - arg_nr - 1; - if (args[arg_nr].reg + if (arg_nr >= 0 + && arg_nr < num_actuals + && args[arg_nr].reg && valreg && REG_P (valreg) && GET_MODE (args[arg_nr].reg) == GET_MODE (valreg)) |