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authorThomas Schwinge <thomas@codesourcery.com>2013-12-20 09:31:50 +0100
committerThomas Schwinge <thomas@codesourcery.com>2013-12-20 09:31:50 +0100
commitd421cfc9bd0275f1d81bd8757b80ff568c7b2826 (patch)
tree46b47f0c1b7a64e2697516b627be8464d15ab797 /sysdeps/x86_64/fpu/e_expl.S
parent1cbf52cde38c2c2c2d8ffdd55cd73f864d79abda (diff)
parentb4578bab30f72cddd2cf38abfb39f9c8dc892249 (diff)
Merge commit 'refs/top-bases/t/no-hp-timing' into t/no-hp-timing
Diffstat (limited to 'sysdeps/x86_64/fpu/e_expl.S')
-rw-r--r--sysdeps/x86_64/fpu/e_expl.S11
1 files changed, 11 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/e_expl.S b/sysdeps/x86_64/fpu/e_expl.S
index a919780390..1c21f03ddc 100644
--- a/sysdeps/x86_64/fpu/e_expl.S
+++ b/sysdeps/x86_64/fpu/e_expl.S
@@ -127,9 +127,20 @@ ENTRY(IEEE754_EXPL)
#endif
3: FLDLOG /* 1 log2(base) */
fmul %st(1), %st /* 1 x log2(base) */
+#ifdef USE_AS_EXPM1L
+ /* Set round-to-nearest temporarily. */
+ fstcw -4(%rsp)
+ movl $0xf3ff, %edx
+ andl -4(%rsp), %edx
+ movl %edx, -8(%rsp)
+ fldcw -8(%rsp)
+#endif
frndint /* 1 i */
fld %st(1) /* 2 x */
frndint /* 2 xi */
+#ifdef USE_AS_EXPM1L
+ fldcw -4(%rsp)
+#endif
fld %st(1) /* 3 i */
fldt MO(c0) /* 4 c0 */
fld %st(2) /* 5 xi */