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PATCH, rs6000: fix PR 36800
- From: Ben Elliston <bje at au1 dot ibm dot com>
- To: gcc-patches at gcc dot gnu dot org
- Cc: dje dot gcc at gmail dot com, "Joseph S. Myers" <joseph at codesourcery dot com>
- Date: Thu, 09 Apr 2009 15:06:19 +1000
- Subject: PATCH, rs6000: fix PR 36800
This patch fixes PR 38600. Joseph's suggestion was correct and I have
tested it on powerpc-linux and powerpc64-linux with no regressions. I
have included the test case from the PR. Okay for the trunk?
2009-04-09 Ben Elliston <bje@au.ibm.com>
PR target/36800
* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Do not set
regalign for the reg == fpr and TDmode case.
2009-04-09 Ben Elliston <bje@au.ibm.com>
Joseph Myers <joseph@codesourcery.com>
PR target/36800
* gcc.dg/dfp/pr36800.c: New.
Index: config/rs6000/rs6000.c
===================================================================
--- config/rs6000/rs6000.c (revision 145794)
+++ config/rs6000/rs6000.c (working copy)
@@ -7092,7 +7092,6 @@
reg number is 0 for f1, so we want to make it odd. */
else if (reg == fpr && TYPE_MODE (type) == TDmode)
{
- regalign = 1;
t = build2 (BIT_IOR_EXPR, TREE_TYPE (reg), unshare_expr (reg),
build_int_cst (TREE_TYPE (reg), 1));
u = build2 (MODIFY_EXPR, void_type_node, unshare_expr (reg), t);
Index: testsuite/gcc.dg/dfp/pr36800.c
===================================================================
--- testsuite/gcc.dg/dfp/pr36800.c (revision 0)
+++ testsuite/gcc.dg/dfp/pr36800.c (revision 0)
@@ -0,0 +1,32 @@
+/* { dg-do run } */
+/* { dg-options "-std=gnu99" } */
+
+#include <stdarg.h>
+extern void abort (void);
+
+void
+f (int a, ...)
+{
+ va_list ap;
+ if (a != 0)
+ abort ();
+ va_start (ap, a);
+ if (va_arg (ap, _Decimal128) != 1.2DL)
+ abort ();
+ if (va_arg (ap, _Decimal128) != 2.34DL)
+ abort ();
+ if (va_arg (ap, _Decimal128) != 3.456DL)
+ abort ();
+ if (va_arg (ap, _Decimal128) != 4.567DL)
+ abort ();
+ if (va_arg (ap, double) != 5.125)
+ abort ();
+ va_end (ap);
+}
+
+int
+main (void)
+{
+ f (0, 1.2DL, 2.34DL, 3.456DL, 4.567DL, 5.125);
+ return 0;
+}