From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.dg/vla-4.c | 48 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/vla-4.c (limited to 'gcc/testsuite/gcc.dg/vla-4.c') diff --git a/gcc/testsuite/gcc.dg/vla-4.c b/gcc/testsuite/gcc.dg/vla-4.c new file mode 100644 index 000000000..7ffbfb31b --- /dev/null +++ b/gcc/testsuite/gcc.dg/vla-4.c @@ -0,0 +1,48 @@ +/* { dg-do run } */ +/* { dg-options "-std=c99 -pedantic-errors" } */ +/* PR c/18740 */ + +static int i; + +int foo(int n) +{ + int (*t)[n]; + i = 0; + int j = 0; + char b[1][n+3]; /* Variable length array. */ + int d[3][n]; /* Variable length array. */ + sizeof (b[i++ + sizeof(j++)]); /* Outer sizeof is evaluated for vla, but not the inner one. */ + if (i != 1 || j != 0) + return 1; + __typeof__(b[i++]) c1; /* typeof is evauluated when given a vm */ + if (i != 2) + return 1; + __typeof__(t + (i++,0)) c2; /* typeof is evauluated when given a vm */ + if (i != 3) + return 1; + __typeof__(i + (i++,0)) c3; /* typeof is not evauluated when not given a vm */ + if (i != 3) + return 1; + sizeof (d[i++]); /* sizeof is evaluated for vla. */ + if (i != 4) + return 1; + __alignof__(__typeof__(t + (i++,0))); /* typeof is not evauluated when given a vm inside alignof*/ + if (i != 4) + return 1; + sizeof(__typeof__(t + (i++,0))); /* typeof is not evauluated when given a vm inside sizeof*/ + if (i != 4) + return 1; + return 0; +} + +int foo6(int a, int b[a][a], int (*c)[sizeof(*b)]) { + return sizeof (*c); +} + +int main() { + int b[10][10]; + int (*c)[sizeof(int)*10]; + if (foo6(10, b, c) != 10*sizeof(int)*sizeof(int)) + return 1; + return foo(10); +} -- cgit v1.2.3