From: Uros Bizjak <uros@gcc.gnu.org>
Date: Tue, 27 Jan 2009 10:18:54 +0000 (+0100)
Subject: re PR middle-end/38969 (-foptimize-sibling-calls generates wrong code on alpha)
X-Git-Tag: releases/gcc-4.4.0~736
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=576de5cb6e4c42c549138a661792e1f7efc81724;p=thirdparty%2Fgcc.git

re PR middle-end/38969 (-foptimize-sibling-calls generates wrong code on alpha)

	PR middle-end/38969
	* calls.c (initialize_argument_information): Do not wrap complex
	arguments in SAVE_EXPR.

testsuite/ChangeLog:

	PR middle-end/38969
	* gcc.c-torture/execute/pr38969.c: New test.

From-SVN: r143699
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3e7865f1313a..d2c1f4bfeaa9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2009-01-27 Uros Bizjak <ubizjak@gmail.com>
+
+	PR middle-end/38969
+	* calls.c (initialize_argument_information): Do not wrap complex
+	arguments in SAVE_EXPR.
+
 2009-01-26  Andreas Tobler  <a.tobler@schweiz.org>
 
 	* config/t-vxworks (LIBGCC2_INCLUDES): Fix typo.
diff --git a/gcc/calls.c b/gcc/calls.c
index a75e3b365698..e6e882f24b1e 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -992,7 +992,6 @@ initialize_argument_information (int num_actuals ATTRIBUTE_UNUSED,
 	    && targetm.calls.split_complex_arg (argtype))
 	  {
 	    tree subtype = TREE_TYPE (argtype);
-	    arg = save_expr (arg);
 	    args[j].tree_value = build1 (REALPART_EXPR, subtype, arg);
 	    j += inc;
 	    args[j].tree_value = build1 (IMAGPART_EXPR, subtype, arg);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 7718c9187e3a..9b9f8ed0dfc0 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,7 +1,12 @@
+2009-01-27 Uros Bizjak <ubizjak@gmail.com>
+
+	PR middle-end/38969
+	* gcc.c-torture/execute/pr38969.c: New test.
+
 2009-01-26  Adam Nemet  <anemet@caviumnetworks.com>
 
 	PR testsuite/38864
-	* gcc.target/mips/fixed-vector-type.c: Add target { fixed_point}
+	* gcc.target/mips/fixed-vector-type.c: Add target { fixed_point }
 	to dg-do compile.
 	* gcc.target/mips/fixed-scalar-type.c: Likewise.
 	* gcc.target/mips/dpaq_sa_l_w.c: Likewise.
@@ -143,7 +148,7 @@
 	* gfortran.dg/host_assoc_function_7.f90: New test
 
 2009-01-20  Andrew Pinski  <andrew_pinski@playstation.sony.com>
-	Richard Guenther  <rguenther@suse.de>
+	    Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/38747
 	PR tree-optimization/38748
diff --git a/gcc/testsuite/gcc.c-torture/execute/pr38969.c b/gcc/testsuite/gcc.c-torture/execute/pr38969.c
new file mode 100644
index 000000000000..328bdf4474b6
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr38969.c
@@ -0,0 +1,25 @@
+__complex__ float
+__attribute__ ((noinline)) foo (__complex__ float x)
+{
+  return x;
+}
+
+__complex__ float
+__attribute__ ((noinline)) bar (__complex__ float x)
+{
+  return foo (x);
+}
+
+int main()
+{
+  __complex__ float a, b;
+  __real__ a = 9;
+  __imag__ a = 42;
+
+  b = bar (a);
+
+  if (a != b)
+    abort ();
+
+  return 0;
+}