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authorUlrich Drepper <drepper@redhat.com>2001-02-18 19:52:52 +0000
committerUlrich Drepper <drepper@redhat.com>2001-02-18 19:52:52 +0000
commite208f556cad11f729533385e46e4191fcc49aa0a (patch)
tree7313b0ca2c1bc399228dc93c04a3b23fd072ee65 /sysdeps/i386
parent3667c08816a6e43e2d41f6bcc58f17ad4f86b911 (diff)
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Update.
2001-02-18 Ulrich Drepper <drepper@redhat.com> * math/libm-test.inc (scalb_test): Require invalid exception being raised for invalid parameters. * sysdeps/i386/fpu/e_scalb.S: Raise invalid exception if necessary. * sysdeps/i386/fpu/e_scalbf.S: Likewise. * sysdeps/i386/fpu/e_scalbl.S: Likewise.
Diffstat (limited to 'sysdeps/i386')
-rw-r--r--sysdeps/i386/fpu/e_scalb.S10
-rw-r--r--sysdeps/i386/fpu/e_scalbf.S10
-rw-r--r--sysdeps/i386/fpu/e_scalbl.S10
3 files changed, 27 insertions, 3 deletions
diff --git a/sysdeps/i386/fpu/e_scalb.S b/sysdeps/i386/fpu/e_scalb.S
index f463002..1596f6a 100644
--- a/sysdeps/i386/fpu/e_scalb.S
+++ b/sysdeps/i386/fpu/e_scalb.S
@@ -56,7 +56,7 @@ ENTRY(__ieee754_scalb)
fcomp %st(2)
fnstsw
sahf
- jne 2f
+ jne 4f
fscale
fstp %st(1)
ret
@@ -75,6 +75,7 @@ ENTRY(__ieee754_scalb)
fstp %st
andl $0x80000000, %edx
andl $8, %eax
+ jnz 4f
shrl $27, %edx
addl %edx, %eax
fldl MOX(zero_nan, %eax, 1)
@@ -95,4 +96,11 @@ ENTRY(__ieee754_scalb)
/* The first parameter is a NaN. Return it. */
3: fstp %st(1)
ret
+
+ /* Return NaN and raise the invalid exception. */
+4: fstp %st
+ fstp %st
+ fldz
+ fdiv %st
+ ret
END(__ieee754_scalb)
diff --git a/sysdeps/i386/fpu/e_scalbf.S b/sysdeps/i386/fpu/e_scalbf.S
index 4b5b0d0..d41c293 100644
--- a/sysdeps/i386/fpu/e_scalbf.S
+++ b/sysdeps/i386/fpu/e_scalbf.S
@@ -58,7 +58,7 @@ ENTRY(__ieee754_scalbf)
fcomp %st(2)
fnstsw
sahf
- jne 2f
+ jne 4f
fscale
fstp %st(1)
ret
@@ -77,6 +77,7 @@ ENTRY(__ieee754_scalbf)
fstp %st
andl $0x80000000, %edx
andl $8, %eax
+ jnz 4f
shrl $27, %edx
addl %edx, %eax
fldl MOX(zero_nan, %eax, 1)
@@ -97,4 +98,11 @@ ENTRY(__ieee754_scalbf)
/* The first parameter is a NaN. Return it. */
3: fstp %st(1)
ret
+
+ /* Return NaN and raise the invalid exception. */
+4: fstp %st
+ fstp %st
+ fldz
+ fdiv %st
+ ret
END(__ieee754_scalbf)
diff --git a/sysdeps/i386/fpu/e_scalbl.S b/sysdeps/i386/fpu/e_scalbl.S
index e8166fa..65644f8 100644
--- a/sysdeps/i386/fpu/e_scalbl.S
+++ b/sysdeps/i386/fpu/e_scalbl.S
@@ -58,7 +58,7 @@ ENTRY(__ieee754_scalbl)
fcomp %st(2)
fnstsw
sahf
- jne 2f
+ jne 4f
fscale
fstp %st(1)
ret
@@ -77,6 +77,7 @@ ENTRY(__ieee754_scalbl)
fstp %st
andl $0x8000, %edx
andl $8, %eax
+ jnz 4f
shrl $11, %edx
addl %edx, %eax
fldl MOX(zero_nan, %eax, 1)
@@ -97,4 +98,11 @@ ENTRY(__ieee754_scalbl)
/* The first parameter is a NaN. Return it. */
3: fstp %st(1)
ret
+
+ /* Return NaN and raise the invalid exception. */
+4: fstp %st
+ fstp %st
+ fldz
+ fdiv %st
+ ret
END(__ieee754_scalbl)