From 59ae5d2f9ce1f6d88b69e251509518936fff719d Mon Sep 17 00:00:00 2001
From: uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 8 Dec 2006 18:20:25 +0000
Subject: [PATCH] PR target/30120 * reg-stack.c
(convert_regs_entry): Mark current argument passing registers as
live.
* config/i386/i386.h (X87_REGPARM_MAX): Set to 0 to disable passing
of float arguments in x87 registers.
testsuite/ChangeLog:
* gcc.target/i386/x87regparm-1.c: XFAIL.
* gcc.target/i386/x87regparm-2.c: XFAIL.
* gcc.target/i386/x87regparm-3.c: XFAIL.
* gcc.target/i386/x87regparm-4.c: XFAIL.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@119663 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 9 +++++++++
gcc/config/i386/i386.h | 4 +++-
gcc/reg-stack.c | 3 ++-
gcc/testsuite/ChangeLog | 7 +++++++
gcc/testsuite/gcc.target/i386/x87regparm-1.c | 2 +-
gcc/testsuite/gcc.target/i386/x87regparm-2.c | 2 +-
gcc/testsuite/gcc.target/i386/x87regparm-3.c | 2 +-
gcc/testsuite/gcc.target/i386/x87regparm-4.c | 2 +-
8 files changed, 25 insertions(+), 6 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bb905058aa1c..287d0dea5333 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2006-12-08 Uros Bizjak <ubizjak@gmail.com>
+
+ PR target/30120
+ * reg-stack.c (convert_regs_entry): Mark current argument passing
+ registers as live.
+
+ * config/i386/i386.h (X87_REGPARM_MAX): Set to 0 to disable passing
+ of float arguments in x87 registers.
+
2006-12-08 John David Anglin <dave.anglin.@nrc-cnrc.gc.ca>
* pa.h (LEGITIMATE_CONSTANT_P): Simplify.
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index dc15a2b808a5..e05bf66624d9 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -1778,7 +1778,9 @@ do { \
#define REGPARM_MAX (TARGET_64BIT ? 6 : 3)
-#define X87_REGPARM_MAX 3
+/* ??? Currently disabled, as reg-stack.c does not know how to
+ rearrange input registers if some arguments are left unused. */
+#define X87_REGPARM_MAX 0
#define SSE_REGPARM_MAX (TARGET_64BIT ? 8 : (TARGET_SSE ? 3 : 0))
diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c
index 57924ceba28a..327cee51f088 100644
--- a/gcc/reg-stack.c
+++ b/gcc/reg-stack.c
@@ -2595,7 +2595,8 @@ convert_regs_entry (void)
int reg, top = -1;
for (reg = LAST_STACK_REG; reg >= FIRST_STACK_REG; --reg)
- if (TEST_HARD_REG_BIT (bi->stack_in.reg_set, reg))
+ if (TEST_HARD_REG_BIT (bi->stack_in.reg_set, reg)
+ || TEST_HARD_REG_BIT (incoming_regs, reg))
{
rtx init;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index fe8632a881d0..a0542868738f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2006-12-08 Uros Bizjak <ubizjak@gmail.com>
+
+ * gcc.target/i386/x87regparm-1.c: XFAIL.
+ * gcc.target/i386/x87regparm-2.c: XFAIL.
+ * gcc.target/i386/x87regparm-3.c: XFAIL.
+ * gcc.target/i386/x87regparm-4.c: XFAIL.
+
2006-12-08 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
* lib/target-supports.exp
diff --git a/gcc/testsuite/gcc.target/i386/x87regparm-1.c b/gcc/testsuite/gcc.target/i386/x87regparm-1.c
index fa93401cd905..a1e6660a783a 100644
--- a/gcc/testsuite/gcc.target/i386/x87regparm-1.c
+++ b/gcc/testsuite/gcc.target/i386/x87regparm-1.c
@@ -19,4 +19,4 @@ void test()
/* Check that no memory is used to pass arguments. */
-/* { dg-final { scan-assembler-not "\\(%esp\\)" } } */
+/* { dg-final { scan-assembler-not "\\(%esp\\)" { xfail *-*-* } } } */
diff --git a/gcc/testsuite/gcc.target/i386/x87regparm-2.c b/gcc/testsuite/gcc.target/i386/x87regparm-2.c
index b28dbc1cc77d..47508f841a1a 100644
--- a/gcc/testsuite/gcc.target/i386/x87regparm-2.c
+++ b/gcc/testsuite/gcc.target/i386/x87regparm-2.c
@@ -19,4 +19,4 @@ void test()
/* Check that no memory is used to pass arguments. */
-/* { dg-final { scan-assembler-not "\\(%esp\\)" } } */
+/* { dg-final { scan-assembler-not "\\(%esp\\)" { xfail *-*-* } } } */
diff --git a/gcc/testsuite/gcc.target/i386/x87regparm-3.c b/gcc/testsuite/gcc.target/i386/x87regparm-3.c
index b90ff858a09c..8e3ff70dffa0 100644
--- a/gcc/testsuite/gcc.target/i386/x87regparm-3.c
+++ b/gcc/testsuite/gcc.target/i386/x87regparm-3.c
@@ -19,4 +19,4 @@ void test()
/* Check that float and double arguments are passed through memory. */
-/* { dg-final { scan-assembler-times "\\(%esp\\)" 4 } } */
+/* { dg-final { scan-assembler-times "\\(%esp\\)" 4 { xfail *-*-* } } } */
diff --git a/gcc/testsuite/gcc.target/i386/x87regparm-4.c b/gcc/testsuite/gcc.target/i386/x87regparm-4.c
index 78a6cddedd4b..95fe2a56fcad 100644
--- a/gcc/testsuite/gcc.target/i386/x87regparm-4.c
+++ b/gcc/testsuite/gcc.target/i386/x87regparm-4.c
@@ -19,4 +19,4 @@ void test()
/* Check that no memory is used to pass arguments. */
-/* { dg-final { scan-assembler-not "\\(%esp\\)" } } */
+/* { dg-final { scan-assembler-not "\\(%esp\\)" { xfail *-*-* } } } */
--
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