re PR target/35664 (unable to find a register to spill in class 'FP_REGS')

	PR target/35664
	* config/sparc/constraints.md ('e'): Return NO_REGS if !TARGET_FPU.
	('f'): Likewise.

From-SVN: r164512

4 files changed, 107 insertions, 8 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f62eb6c..921ab0e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-09-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR target/35664
+	* config/sparc/constraints.md ('e'): Return NO_REGS if !TARGET_FPU.
+	('f'): Likewise.
+
 2010-09-22  Tristan Gingold  <gingold@adacore.com>
 
 	* config/alpha/alpha.c (alpha_use_linkage): Initialize target field.
diff --git a/gcc/config/sparc/constraints.md b/gcc/config/sparc/constraints.md
index ee0fbbd..73c4087 100644
--- a/gcc/config/sparc/constraints.md
+++ b/gcc/config/sparc/constraints.md
@@ -35,10 +35,10 @@
 
 ;; In the non-V9 case, coerce V9 'e' class to 'f', so we can use 'e' in the
 ;; MD file for V8 and V9.
-(define_register_constraint "e" "TARGET_V9 ? EXTRA_FP_REGS : FP_REGS"
+(define_register_constraint "e" "(TARGET_FPU ? (TARGET_V9 ? EXTRA_FP_REGS : FP_REGS) : NO_REGS)"
  "Any floating-point register")
 
-(define_register_constraint "f" "FP_REGS"
+(define_register_constraint "f" "(TARGET_FPU ? FP_REGS : NO_REGS)"
  "Lower floating-point register")
  
 (define_register_constraint "h" "(TARGET_V9 && TARGET_V8PLUS ? I64_REGS : NO_REGS)"
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 9bd4cb2..1eae497 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2010-09-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc.target/sparc/mnofpu.c: New test.
+
 2010-09-22  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/45739
@@ -25,12 +29,11 @@
 
 	2005-10-11  Fariborz Jahanian <fjahanian@apple.com>
 
-	        Radar 4291785
-	        
-	        objc.dg/naming-4.m: New
-	        objc.dg/naming-5.m: New
-	        obj-c++.dg/naming-1.mm: New
-	        obj-c++.dg/naming-2.mm: New
+	Radar 4291785
+	objc.dg/naming-4.m: New
+	objc.dg/naming-5.m: New
+	obj-c++.dg/naming-1.mm: New
+	obj-c++.dg/naming-2.mm: New
 
 2010-09-21  Jonathan Wakely  <redi@gcc.gnu.org>
 	    Jack Howarth  <howarth@bromo.med.uc.edu>
diff --git a/gcc/testsuite/gcc.target/sparc/mnofpu.c b/gcc/testsuite/gcc.target/sparc/mnofpu.c
new file mode 100644
index 0000000..351585d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/sparc/mnofpu.c
@@ -0,0 +1,90 @@
+/* PR target/35664 */
+/* Tetstcase by Mike Stein <mstein.lists@googlemail.com> */
+
+/* { dg-do compile } */
+/* { dg-options "-O2 -mno-fpu" } */
+
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+typedef unsigned long long u64;
+struct pt_regs {
+};
+static inline __attribute__((always_inline)) struct task_struct *__get_current(void)
+{
+}
+static inline __attribute__((always_inline)) u32 flip_dword (u32 l)
+{
+ return ((l&0xff)<<24) | (((l>>8)&0xff)<<16) | (((l>>16)&0xff)<<8)| ((l>>24)&0xff);
+}
+static inline __attribute__((always_inline)) u32 __readl(const volatile void *addr)
+{
+ return flip_dword(*( volatile u32 *)addr);
+}
+enum e1e_registers {
+ E1000_PRC64 = 0x0405C,
+ E1000_PRC127 = 0x04060,
+ E1000_PRC255 = 0x04064,
+ E1000_PTC511 = 0x040E4,
+ E1000_PTC1023 = 0x040E8,
+ E1000_PTC1522 = 0x040EC,
+ E1000_MPTC = 0x040F0,
+};
+enum e1000_media_type {
+ e1000_media_type_copper = 1,
+};
+struct e1000_rx_desc {
+ struct {
+ } wb;
+};
+struct e1000_hw_stats {
+ u64 prc64;
+ u64 prc127;
+ u64 prc255;
+ u64 ptc511;
+ u64 ptc1023;
+ u64 ptc1522;
+ u64 mptc;
+};
+struct e1000_shadow_ram {
+ u16 value;
+};
+struct e1000_dev_spec_ich8lan {
+ struct e1000_shadow_ram shadow_ram[2048];
+};
+struct e1000_hw {
+ u8 *hw_addr;
+ union {
+  struct e1000_dev_spec_ich8lan ich8lan;
+ } dev_spec;
+ enum e1000_media_type media_type;
+};
+struct e1000_adapter {
+ u16 link_speed;
+ struct e1000_hw hw;
+ struct e1000_hw_stats stats;
+ unsigned int flags;
+};
+static inline __attribute__((always_inline)) u32 __er32(struct e1000_hw *hw, unsigned long reg)
+{
+ return __readl(hw->hw_addr + reg);
+}
+void e1000e_update_stats(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 phy_tmp;
+ if (adapter->flags & (1 << 10)) {
+  adapter->stats.prc64 += __er32(hw, E1000_PRC64);
+  adapter->stats.prc127 += __er32(hw, E1000_PRC127);
+  adapter->stats.prc255 += __er32(hw, E1000_PRC255);
+  adapter->stats.ptc511 += __er32(hw, E1000_PTC511);
+  adapter->stats.ptc1023 += __er32(hw, E1000_PTC1023);
+  adapter->stats.ptc1522 += __er32(hw, E1000_PTC1522);
+ }
+ adapter->stats.mptc += __er32(hw, E1000_MPTC);
+ if (hw->media_type == e1000_media_type_copper) {
+  if ((adapter->link_speed == 1000) &&
+     (!e1e_rphy(hw, 0x0A, &phy_tmp))) {
+  }
+ }
+}