From: Siddhesh Poyarekar <siddhesh@sourceware.org>
To: libc-alpha@sourceware.org
Cc: adhemerval.zanella@linaro.org, fweimer@redhat.com,
joseph@codesourcery.com
Subject: [PATCH v2 1/5] x86 long double: Support pseudo numbers in fpclassifyl
Date: Wed, 23 Dec 2020 17:25:58 +0530 [thread overview]
Message-ID: <20201223115602.3472627-2-siddhesh@sourceware.org> (raw)
In-Reply-To: <20201223115602.3472627-1-siddhesh@sourceware.org>
Also move sysdeps/i386/fpu/s_fpclassifyl.c to
sysdeps/x86/fpu/s_fpclassifyl.c and remove
sysdeps/x86_64/fpu/s_fpclassifyl.c
---
sysdeps/{i386 => x86}/fpu/s_fpclassifyl.c | 4 ++++
sysdeps/x86_64/fpu/s_fpclassifyl.c | 2 --
2 files changed, 4 insertions(+), 2 deletions(-)
rename sysdeps/{i386 => x86}/fpu/s_fpclassifyl.c (87%)
delete mode 100644 sysdeps/x86_64/fpu/s_fpclassifyl.c
diff --git a/sysdeps/i386/fpu/s_fpclassifyl.c b/sysdeps/x86/fpu/s_fpclassifyl.c
similarity index 87%
rename from sysdeps/i386/fpu/s_fpclassifyl.c
rename to sysdeps/x86/fpu/s_fpclassifyl.c
index 501312f51e..a48b7685c4 100644
--- a/sysdeps/i386/fpu/s_fpclassifyl.c
+++ b/sysdeps/x86/fpu/s_fpclassifyl.c
@@ -34,6 +34,10 @@ __fpclassifyl (long double x)
retval = FP_ZERO;
else if (ex == 0 && (hx & 0x80000000) == 0)
retval = FP_SUBNORMAL;
+ /* Pseudo-normals, i.e. pseudo-zero, pseudo-infinity and un-normals. They
+ behave like NaNs, so categorize them as such. */
+ else if ((hx & 0x80000000) == 0)
+ retval = FP_NAN;
else if (ex == 0x7fff)
retval = ((hx & 0x7fffffff) | lx) != 0 ? FP_NAN : FP_INFINITE;
diff --git a/sysdeps/x86_64/fpu/s_fpclassifyl.c b/sysdeps/x86_64/fpu/s_fpclassifyl.c
deleted file mode 100644
index 856854b0f5..0000000000
--- a/sysdeps/x86_64/fpu/s_fpclassifyl.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#include <sysdeps/i386/fpu/s_fpclassifyl.c>
-
--
2.29.2
next prev parent reply other threads:[~2020-12-23 11:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-23 11:55 [PATCH v2 0/5] x86 pseudo-normal numbers Siddhesh Poyarekar
2020-12-23 11:55 ` Siddhesh Poyarekar [this message]
2020-12-23 17:59 ` [PATCH v2 1/5] x86 long double: Support pseudo numbers in fpclassifyl Adhemerval Zanella
2020-12-23 11:55 ` [PATCH v2 2/5] x86 long double: Support pseudo numbers in isnanl Siddhesh Poyarekar
2020-12-23 18:03 ` Adhemerval Zanella
2020-12-23 11:56 ` [PATCH v2 3/5] Partially revert 681900d29683722b1cb0a8e565a0585846ec5a61 Siddhesh Poyarekar
2020-12-23 12:09 ` Florian Weimer
2020-12-23 11:56 ` [PATCH v2 4/5] x86 long double: Consider pseudo numbers as signaling Siddhesh Poyarekar
2020-12-23 18:14 ` Adhemerval Zanella
2020-12-23 11:56 ` [PATCH v2 5/5] x86 long double: Add tests for pseudo normal numbers Siddhesh Poyarekar
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