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authorUlrich Weigand <uweigand@de.ibm.com>2005-04-14 08:25:00 +0000
committerUlrich Weigand <uweigand@gcc.gnu.org>2005-04-14 08:25:00 +0000
commit559be41a519baec62f81099ba904338607c687dd (patch)
treeabdff75b27cb386799a39d99ca1f8608fad2a5fa /gcc
parent907d22fd4489e480f815f926db9fe5115354b95b (diff)
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re PR target/20927 (ICE in smallest_mode_for_size, at stor-layout.c:221 (s390x))
ChangeLog: PR target/20927 * config/s390/s390-modes.def: Define TFmode. testsuite/ChangeLog: PR target/20927 * gcc.dg/pr20927.c: New test. From-SVN: r98128
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/config/s390/s390-modes.def3
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gcc.dg/pr20927.c23
4 files changed, 36 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0ce7275..f96cfbd 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-04-14 Ulrich Weigand <uweigand@de.ibm.com>
+
+ PR target/20927
+ * config/s390/s390-modes.def: Define TFmode.
+
2005-04-13 Richard Sandiford <rsandifo@redhat.com>
* config/mips/mips.h (ASM_OUTPUT_CASE_LABEL): Delete.
diff --git a/gcc/config/s390/s390-modes.def b/gcc/config/s390/s390-modes.def
index 1cb0f19..6520dda 100644
--- a/gcc/config/s390/s390-modes.def
+++ b/gcc/config/s390/s390-modes.def
@@ -23,6 +23,9 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
/* 256-bit integer mode is needed for STACK_SAVEAREA_MODE. */
INT_MODE (OI, 32);
+/* Define TFmode to work around reload problem PR 20927. */
+FLOAT_MODE (TF, 16, ieee_quad_format);
+
/* Add any extra modes needed to represent the condition code. */
/*
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b09c5b7..70a0126 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2005-04-14 Ulrich Weigand <uweigand@de.ibm.com>
+
+ PR target/20927
+ * gcc.dg/pr20927.c: New test.
+
2005-04-13 Richard Sandiford <rsandifo@redhat.com>
* gcc.dg/torture/pr19683-1.c: Guard with #ifndef __mips16.
diff --git a/gcc/testsuite/gcc.dg/pr20927.c b/gcc/testsuite/gcc.dg/pr20927.c
new file mode 100644
index 0000000..55cda33
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr20927.c
@@ -0,0 +1,23 @@
+/* This caused an ICE on s390x due to a reload inheritance bug. */
+
+/* { dg-do compile { target s390*-*-* } } */
+/* { dg-options "-O2" } */
+
+struct point { double x, y; };
+extern void use (struct point);
+
+void test (struct point *pc, struct point p1)
+{
+ struct point p0 = *pc;
+
+ if (p0.x == p1.x && p0.y == p1.y)
+ use (p0);
+
+ asm ("" : : : "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10");
+
+ p1.y -= p0.y;
+
+ use (p0);
+ use (p1);
+}
+