From 4990ac03eba1cee5b994b89c9a140c3945b060d5 Mon Sep 17 00:00:00 2001
From: ghazi <ghazi@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 18 Dec 2006 22:45:56 +0000
Subject: [PATCH] * gcc.dg/torture/builtin-pow-mpfr-1.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120018 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/testsuite/ChangeLog | 4 ++++
.../gcc.dg/torture/builtin-pow-mpfr-1.c | 19 +++++++++++++++++++
2 files changed, 23 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/torture/builtin-pow-mpfr-1.c
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5819595d2dff..8a591530f5dc 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2006-12-18 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
+ * gcc.dg/torture/builtin-pow-mpfr-1.c: New test.
+
2006-12-18 Brooks Moses <brooks.moses@codesourcery.com>
* gfortran.dg/advance_3.f90: Add dg-do compile directive.
diff --git a/gcc/testsuite/gcc.dg/torture/builtin-pow-mpfr-1.c b/gcc/testsuite/gcc.dg/torture/builtin-pow-mpfr-1.c
new file mode 100644
index 000000000000..6206b9ee3d2a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/builtin-pow-mpfr-1.c
@@ -0,0 +1,19 @@
+/* Version 2.2.0 of MPFR had bugs in pow underflow/overflow. This
+ test checks to see if that buggy version was installed. The
+ problem is NOT fixed with the version 2.2.0 "cumulative patch".
+ However it is fixed in version 2.2.1 and presumably later MPFR
+ versions.
+
+ Origin: Kaveh R. Ghazi 12/17/2006. */
+
+/* { dg-do compile } */
+/* { dg-options "-fdump-tree-original" } */
+
+extern double testit()
+{
+ /* This underflows and therefore gcc should not fold it. */
+ return __builtin_pow (0.11, 1.0e38);
+}
+
+/* { dg-final { scan-tree-dump "pow" "original" } } */
+/* { dg-final { cleanup-tree-dump "original" } } */
--
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