From 3d3e20df3616f7999bd607306b378a4861cd8b77 Mon Sep 17 00:00:00 2001 From: Richard Guenther Date: Sat, 5 Apr 2008 18:04:07 +0000 Subject: [PATCH] re PR tree-optimization/35833 (Wrong code generated with -ftree-vrp) 2008-04-05 Richard Guenther PR tree-optimization/35833 * gcc.dg/torture/pr35833.c: New testcase. From-SVN: r133941 --- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.dg/torture/pr35833.c | 22 ++++++++++++++++++++++ 2 files changed, 27 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/torture/pr35833.c diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 08e354548bb..720118a170e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2008-04-05 Richard Guenther + + PR tree-optimization/35833 + * gcc.dg/torture/pr35833.c: New testcase. + 2008-04-04 Naveen.H.S * gcc.target/sh/sh2a-band.c: New test. diff --git a/gcc/testsuite/gcc.dg/torture/pr35833.c b/gcc/testsuite/gcc.dg/torture/pr35833.c new file mode 100644 index 00000000000..2e740f29f84 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr35833.c @@ -0,0 +1,22 @@ +/* { dg-do run } */ +/* { dg-options "-ftree-vrp" } */ + +struct S {struct S *field;}; +struct S True, False, Z; +static inline int f(void) {return 1;} +static inline int g(struct S **obj) { + return f() && *obj == &Z; +} +struct S **h(struct S **x) { + if (x) + return g(x) ? &True.field : &False.field; + else + return &True.field; +} +extern void abort (void); +int main() +{ + if (h(&False.field) != &False.field) + abort (); + return 0; +} -- 2.30.2