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-rw-r--r--ChangeLog13
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/s_ceil.S9
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/s_ceilf.S9
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/s_floor.S9
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/s_floorf.S9
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/s_trunc.S9
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/s_truncf.S9
7 files changed, 49 insertions, 18 deletions
diff --git a/ChangeLog b/ChangeLog
index 1ecd6d5ab9..4564571809 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+2016-05-25 Joseph Myers <joseph@codesourcery.com>
+
+ [BZ #15479]
+ * sysdeps/powerpc/powerpc32/fpu/s_ceil.S (__ceil): Move save of
+ floating-point state after first floating-point operation on
+ input. Restore full floating-point state instead of just rounding
+ mode.
+ * sysdeps/powerpc/powerpc32/fpu/s_ceilf.S (__ceilf): Likewise.
+ * sysdeps/powerpc/powerpc32/fpu/s_floor.S (__floor): Likewise.
+ * sysdeps/powerpc/powerpc32/fpu/s_floorf.S (__floorf): Likewise.
+ * sysdeps/powerpc/powerpc32/fpu/s_trunc.S (__trunc): Likewise.
+ * sysdeps/powerpc/powerpc32/fpu/s_truncf.S (__truncf): Likewise.
+
2016-05-25 Stefan Liebler <stli@linux.vnet.ibm.com>
[BZ #19727]
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_ceil.S b/sysdeps/powerpc/powerpc32/fpu/s_ceil.S
index 48d6d0de19..07d031e22e 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_ceil.S
+++ b/sysdeps/powerpc/powerpc32/fpu/s_ceil.S
@@ -26,7 +26,6 @@
.section ".text"
ENTRY (__ceil)
- mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
cfi_register(lr,r11)
@@ -42,6 +41,8 @@ ENTRY (__ceil)
fabs fp0,fp1
fsub fp12,fp13,fp13 /* generate 0.0 */
fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
+ mffs fp11 /* Save current FPU rounding mode and
+ "inexact" state. */
fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
bnllr- cr7
mtfsfi 7,2 /* Set rounding mode toward +inf. */
@@ -50,7 +51,8 @@ ENTRY (__ceil)
fsub fp1,fp1,fp13 /* x-= TWO52; */
fabs fp1,fp1 /* if (x == 0.0) */
/* x = 0.0; */
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
.L4:
bge- cr6,.L9 /* if (x < 0.0) */
@@ -59,7 +61,8 @@ ENTRY (__ceil)
fnabs fp1,fp1 /* if (x == 0.0) */
/* x = -0.0; */
.L9:
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
END (__ceil)
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_ceilf.S b/sysdeps/powerpc/powerpc32/fpu/s_ceilf.S
index c70fd444e2..3987e24e41 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_ceilf.S
+++ b/sysdeps/powerpc/powerpc32/fpu/s_ceilf.S
@@ -25,7 +25,6 @@
.section ".text"
ENTRY (__ceilf)
- mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
cfi_register(lr,r11)
@@ -41,6 +40,8 @@ ENTRY (__ceilf)
fabs fp0,fp1
fsubs fp12,fp13,fp13 /* generate 0.0 */
fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO23) */
+ mffs fp11 /* Save current FPU rounding mode and
+ "inexact" state. */
fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
bnllr- cr7
mtfsfi 7,2 /* Set rounding mode toward +inf. */
@@ -49,7 +50,8 @@ ENTRY (__ceilf)
fsubs fp1,fp1,fp13 /* x-= TWO23; */
fabs fp1,fp1 /* if (x == 0.0) */
/* x = 0.0; */
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
.L4:
bge- cr6,.L9 /* if (x < 0.0) */
@@ -58,7 +60,8 @@ ENTRY (__ceilf)
fnabs fp1,fp1 /* if (x == 0.0) */
/* x = -0.0; */
.L9:
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
END (__ceilf)
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_floor.S b/sysdeps/powerpc/powerpc32/fpu/s_floor.S
index 3f84465a8e..b951666bd7 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_floor.S
+++ b/sysdeps/powerpc/powerpc32/fpu/s_floor.S
@@ -26,7 +26,6 @@
.section ".text"
ENTRY (__floor)
- mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
cfi_register(lr,r11)
@@ -42,6 +41,8 @@ ENTRY (__floor)
fabs fp0,fp1
fsub fp12,fp13,fp13 /* generate 0.0 */
fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
+ mffs fp11 /* Save current FPU rounding mode and
+ "inexact" state. */
fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
bnllr- cr7
mtfsfi 7,3 /* Set rounding mode toward -inf. */
@@ -50,7 +51,8 @@ ENTRY (__floor)
fsub fp1,fp1,fp13 /* x-= TWO52; */
fabs fp1,fp1 /* if (x == 0.0) */
/* x = 0.0; */
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
.L4:
bge- cr6,.L9 /* if (x < 0.0) */
@@ -59,7 +61,8 @@ ENTRY (__floor)
fnabs fp1,fp1 /* if (x == 0.0) */
/* x = -0.0; */
.L9:
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
END (__floor)
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_floorf.S b/sysdeps/powerpc/powerpc32/fpu/s_floorf.S
index 55ac526d71..64b87b1cc1 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_floorf.S
+++ b/sysdeps/powerpc/powerpc32/fpu/s_floorf.S
@@ -25,7 +25,6 @@
.section ".text"
ENTRY (__floorf)
- mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
cfi_register(lr,r11)
@@ -41,6 +40,8 @@ ENTRY (__floorf)
fabs fp0,fp1
fsubs fp12,fp13,fp13 /* generate 0.0 */
fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO23) */
+ mffs fp11 /* Save current FPU rounding mode and
+ "inexact" state. */
fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
bnllr- cr7
mtfsfi 7,3 /* Set rounding mode toward -inf. */
@@ -49,7 +50,8 @@ ENTRY (__floorf)
fsubs fp1,fp1,fp13 /* x-= TWO23; */
fabs fp1,fp1 /* if (x == 0.0) */
/* x = 0.0; */
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
.L4:
bge- cr6,.L9 /* if (x < 0.0) */
@@ -58,7 +60,8 @@ ENTRY (__floorf)
fnabs fp1,fp1 /* if (x == 0.0) */
/* x = -0.0; */
.L9:
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
END (__floorf)
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_trunc.S b/sysdeps/powerpc/powerpc32/fpu/s_trunc.S
index c8aa2fb245..260b4fd336 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_trunc.S
+++ b/sysdeps/powerpc/powerpc32/fpu/s_trunc.S
@@ -33,7 +33,6 @@
.section ".text"
ENTRY (__trunc)
- mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
cfi_register(lr,r11)
@@ -49,6 +48,8 @@ ENTRY (__trunc)
fabs fp0,fp1
fsub fp12,fp13,fp13 /* generate 0.0 */
fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
+ mffs fp11 /* Save current FPU rounding mode and
+ "inexact" state. */
fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
bnllr- cr7
mtfsfi 7,1 /* Set rounding toward 0 mode. */
@@ -57,7 +58,8 @@ ENTRY (__trunc)
fsub fp1,fp1,fp13 /* x-= TWO52; */
fabs fp1,fp1 /* if (x == 0.0) */
/* x = 0.0; */
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
.L4:
bge- cr6,.L9 /* if (x < 0.0) */
@@ -66,7 +68,8 @@ ENTRY (__trunc)
fnabs fp1,fp1 /* if (x == 0.0) */
/* x = -0.0; */
.L9:
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
END (__trunc)
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_truncf.S b/sysdeps/powerpc/powerpc32/fpu/s_truncf.S
index e47ee96c55..6c2c959e71 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_truncf.S
+++ b/sysdeps/powerpc/powerpc32/fpu/s_truncf.S
@@ -32,7 +32,6 @@
.section ".text"
ENTRY (__truncf)
- mffs fp11 /* Save current FPU rounding mode. */
#ifdef SHARED
mflr r11
cfi_register(lr,r11)
@@ -48,6 +47,8 @@ ENTRY (__truncf)
fabs fp0,fp1
fsubs fp12,fp13,fp13 /* generate 0.0 */
fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO23) */
+ mffs fp11 /* Save current FPU rounding mode and
+ "inexact" state. */
fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
bnllr- cr7
mtfsfi 7,1 /* Set rounding toward 0 mode. */
@@ -56,7 +57,8 @@ ENTRY (__truncf)
fsubs fp1,fp1,fp13 /* x-= TWO23; */
fabs fp1,fp1 /* if (x == 0.0) */
/* x = 0.0; */
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
.L4:
bge- cr6,.L9 /* if (x < 0.0) */
@@ -65,7 +67,8 @@ ENTRY (__truncf)
fnabs fp1,fp1 /* if (x == 0.0) */
/* x = -0.0; */
.L9:
- mtfsf 0x01,fp11 /* restore previous rounding mode. */
+ mtfsf 0xff,fp11 /* Restore previous rounding mode and
+ "inexact" state. */
blr
END (__truncf)
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