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authorAndreas Schwab <schwab@redhat.com>2009-10-19 21:23:15 -0700
committerUlrich Drepper <drepper@redhat.com>2009-10-19 21:23:15 -0700
commitb7805d0ba8948fcf5e406bf52530d9aba99f5954 (patch)
tree4cf6a9d4462778f3813492393059d095bd91c17a /sysdeps
parenta0902db9fe8f4cfc6b0b0344558166f5b230b806 (diff)
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Correct errno handling in expm1.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/i386/fpu/s_expm1.S6
-rw-r--r--sysdeps/i386/fpu/s_expm1f.S6
-rw-r--r--sysdeps/i386/fpu/s_expm1l.S3
-rw-r--r--sysdeps/ieee754/dbl-64/w_exp.c1
-rw-r--r--sysdeps/ieee754/flt-32/w_expf.c1
-rw-r--r--sysdeps/ieee754/ldbl-96/w_expl.c1
6 files changed, 17 insertions, 1 deletions
diff --git a/sysdeps/i386/fpu/s_expm1.S b/sysdeps/i386/fpu/s_expm1.S
index e761183639..c690a458f8 100644
--- a/sysdeps/i386/fpu/s_expm1.S
+++ b/sysdeps/i386/fpu/s_expm1.S
@@ -22,6 +22,7 @@
/* Using: e^x - 1 = 2^(x * log2(e)) - 1 */
+#include <sysdep.h>
#include <machine/asm.h>
#ifdef __ELF__
@@ -48,6 +49,11 @@ l2e: .tfloat 1.442695040888963407359924681002
.text
ENTRY(__expm1)
+ movzwl 4+6(%esp), %eax
+ xorb $0x80, %ah // invert sign bit (now 1 is "positive")
+ cmpl $0xc086, %eax // is num >= 704?
+ jae HIDDEN_JUMPTARGET (__exp)
+
fldl 4(%esp) // x
fxam // Is NaN or +-Inf?
fstsw %ax
diff --git a/sysdeps/i386/fpu/s_expm1f.S b/sysdeps/i386/fpu/s_expm1f.S
index 88adb75b86..8645107274 100644
--- a/sysdeps/i386/fpu/s_expm1f.S
+++ b/sysdeps/i386/fpu/s_expm1f.S
@@ -22,6 +22,7 @@
/* Using: e^x - 1 = 2^(x * log2(e)) - 1 */
+#include <sysdep.h>
#include <machine/asm.h>
#ifdef __ELF__
@@ -48,6 +49,11 @@ l2e: .tfloat 1.442695040888963407359924681002
.text
ENTRY(__expm1f)
+ movzwl 4+2(%esp), %eax
+ xorb $0x80, %ah // invert sign bit (now 1 is "positive")
+ cmpl $0xc2b1, %eax // is num >= 88.5?
+ jae HIDDEN_JUMPTARGET (__expf)
+
flds 4(%esp) // x
fxam // Is NaN or +-Inf?
fstsw %ax
diff --git a/sysdeps/i386/fpu/s_expm1l.S b/sysdeps/i386/fpu/s_expm1l.S
index b69b22bc62..60b5b82e20 100644
--- a/sysdeps/i386/fpu/s_expm1l.S
+++ b/sysdeps/i386/fpu/s_expm1l.S
@@ -22,6 +22,7 @@
/* Using: e^x - 1 = 2^(x * log2(e)) - 1 */
+#include <sysdep.h>
#include <machine/asm.h>
#ifdef __ELF__
@@ -51,7 +52,7 @@ ENTRY(__expm1l)
movzwl 4+8(%esp), %eax // load sign bit and 15-bit exponent
xorb $0x80, %ah // invert sign bit (now 1 is "positive")
cmpl $0xc006, %eax // is num positive and exp >= 6 (number is >= 128.0)?
- jae __ieee754_expl // (if num is denormal, it is at least >= 64.0)
+ jae HIDDEN_JUMPTARGET (__expl) // (if num is denormal, it is at least >= 64.0)
fldt 4(%esp) // x
fxam // Is NaN or +-Inf?
diff --git a/sysdeps/ieee754/dbl-64/w_exp.c b/sysdeps/ieee754/dbl-64/w_exp.c
index 445c5788d2..1216492090 100644
--- a/sysdeps/ieee754/dbl-64/w_exp.c
+++ b/sysdeps/ieee754/dbl-64/w_exp.c
@@ -51,6 +51,7 @@ u_threshold= -7.45133219101941108420e+02; /* 0xc0874910, 0xD52D3051 */
return z;
#endif
}
+hidden_def (__exp)
weak_alias (__exp, exp)
#ifdef NO_LONG_DOUBLE
strong_alias (__exp, __expl)
diff --git a/sysdeps/ieee754/flt-32/w_expf.c b/sysdeps/ieee754/flt-32/w_expf.c
index 4ba21c7c42..83b268f570 100644
--- a/sysdeps/ieee754/flt-32/w_expf.c
+++ b/sysdeps/ieee754/flt-32/w_expf.c
@@ -56,4 +56,5 @@ u_threshold= -1.0397208405e+02; /* 0xc2cff1b5 */
return z;
#endif
}
+hidden_def (__expf)
weak_alias (__expf, expf)
diff --git a/sysdeps/ieee754/ldbl-96/w_expl.c b/sysdeps/ieee754/ldbl-96/w_expl.c
index b8152cea65..53bb143734 100644
--- a/sysdeps/ieee754/ldbl-96/w_expl.c
+++ b/sysdeps/ieee754/ldbl-96/w_expl.c
@@ -57,4 +57,5 @@ u_threshold= -1.140019167866942050398521670162263001513e4;
return z;
#endif
}
+hidden_def (__expl)
weak_alias (__expl, expl)