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* [glibc/maskray/grte] Work around lack of .tfloat in clang assembler
@ 2021-08-27 23:21 Fangrui Song
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From: Fangrui Song @ 2021-08-27 23:21 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=bf806c9c4e515c78b35d1e16977475c699bdaf32
commit bf806c9c4e515c78b35d1e16977475c699bdaf32
Author: Stan Shebs <stanshebs@google.com>
Date: Tue Feb 6 15:53:53 2018 -0800
Work around lack of .tfloat in clang assembler
Diff:
---
sysdeps/x86_64/fpu/s_log1pl.S | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/sysdeps/x86_64/fpu/s_log1pl.S b/sysdeps/x86_64/fpu/s_log1pl.S
index 947e5e4552..5fe18c60e4 100644
--- a/sysdeps/x86_64/fpu/s_log1pl.S
+++ b/sysdeps/x86_64/fpu/s_log1pl.S
@@ -17,7 +17,13 @@ RCSID("$NetBSD: s_log1p.S,v 1.7 1995/05/09 00:10:58 jtc Exp $")
-1 + sqrt(2) / 2 <= x <= 1 - sqrt(2) / 2
0.29 is a safe value.
*/
+#if defined(__clang__)
+/* Necessary in the absence of a .tfloat directive in the assembler. */
+limit:
+ .byte 0xe1, 0x7a, 0x14, 0xae, 0x47, 0xe1, 0x7a, 0x94, 0xfd, 0x3f
+#else
limit: .tfloat 0.29
+#endif
/* Please note: we use a double value here. Since 1.0 has
an exact representation this does not effect the accuracy
but it helps to optimize the code. */
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