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authorCarlos O'Donell <carlos@systemhalted.org>2013-05-15 11:47:47 -0400
committerCarlos O'Donell <carlos@systemhalted.org>2013-05-15 12:05:10 -0400
commitb7f7d28b61a806f02e1f4cea81213027c088be8b (patch)
treea4d7b1c56605fd6ba907f9eb46d771ee82acbc36 /ports/sysdeps
parent7abeee129ef9872abd8e2fe0f94b1ad31f4ac591 (diff)
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hppa: Fix _FPU_GETCW and _FPU_SETCW.
The following patch fixes both _FPU_GETCW and
_FPU_SETCW for hppa. The initial implementation was
flawed and not well tested. We failed to set cw,
and passed in the value of a register to fldd.
This patch fixes both of those errors and allows
the libm tests to pass without failure.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
---

2013-05-15  Guy Martin  <gmsoft@tuxicoman.be>
	    Carlos O'Donell  <carlos@redhat.com>

	[BZ# 15000]
	* ports/sysdeps/hppa/fpu/fpu_control.h (_FPU_GETCW): Set cw.
	(_FPU_SETCW): Pass address to fldd.
Diffstat (limited to 'ports/sysdeps')
-rw-r--r--ports/sysdeps/hppa/fpu/fpu_control.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/ports/sysdeps/hppa/fpu/fpu_control.h b/ports/sysdeps/hppa/fpu/fpu_control.h
index 5cac3344d6..627cdd5b92 100644
--- a/ports/sysdeps/hppa/fpu/fpu_control.h
+++ b/ports/sysdeps/hppa/fpu/fpu_control.h
@@ -49,7 +49,7 @@ typedef unsigned int fpu_control_t;
   __asm__ ("fstd %%fr0,0(%1)\n\t"						\
            "fldd 0(%1),%%fr0\n\t"						\
 	   : "=m" (__fullfp.__fpreg) : "r" (&__fullfp.__fpreg) : "%r0");	\
-  __fullfp.__halfreg[0];							\
+  cw = __fullfp.__halfreg[0];							\
 })
 
 #define _FPU_SETCW(cw) \
@@ -57,7 +57,7 @@ typedef unsigned int fpu_control_t;
   union { __extension__ unsigned long long __fpreg; unsigned int __halfreg[2]; } __fullfp;	\
   __fullfp.__halfreg[0] = cw;							\
   __asm__ ("fldd 0(%1),%%fr0\n\t"						\
-	   : : "m" (__fullfp.__fpreg), "r" (__fullfp.__fpreg) : "%r0" );	\
+	   : : "m" (__fullfp.__fpreg), "r" (&__fullfp.__fpreg) : "%r0" );	\
 })
 
 /* Default control word set at startup.  */