diff options
| author | Joseph Myers <joseph@codesourcery.com> | 2016-05-27 17:47:54 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2016-05-27 17:47:54 +0000 |
| commit | f6ef0657e493e1f84dfb5b0b1966cf34e371ae27 (patch) | |
| tree | bb1f337bbc8ceb8b9a43fe869792f8c90be8f7e3 /sysdeps/powerpc/powerpc64/fpu/s_truncf.S | |
| parent | debf7618f68deed8b378beb199525d4467edb6d4 (diff) | |
| download | glibc-f6ef0657e493e1f84dfb5b0b1966cf34e371ae27.tar.gz glibc-f6ef0657e493e1f84dfb5b0b1966cf34e371ae27.tar.xz glibc-f6ef0657e493e1f84dfb5b0b1966cf34e371ae27.zip | |
Fix powerpc64 ceil, rint etc. on sNaN input (bug 20160).
The powerpc64 versions of ceil, floor, round, trunc, rint, nearbyint and their float versions return sNaN for sNaN input when they should return qNaN. This patch fixes them to add a NaN argument to itself to quiet sNaNs before returning. Tested for powerpc64. [BZ #20160] * sysdeps/powerpc/powerpc64/fpu/s_ceil.S (__ceil): Add NaN argument to itself before returning the result. * sysdeps/powerpc/powerpc64/fpu/s_ceilf.S (__ceilf): Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floor.S (__floor): Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floorf.S (__floorf): Likewise. * sysdeps/powerpc/powerpc64/fpu/s_nearbyint.S (__nearbyint): Likewise. * sysdeps/powerpc/powerpc64/fpu/s_nearbyintf.S (__nearbyintf): Likewise. * sysdeps/powerpc/powerpc64/fpu/s_rint.S (__rint): Likewise. * sysdeps/powerpc/powerpc64/fpu/s_rintf.S (__rintf): Likewise. * sysdeps/powerpc/powerpc64/fpu/s_round.S (__round): Likewise. * sysdeps/powerpc/powerpc64/fpu/s_roundf.S (__roundf): Likewise. * sysdeps/powerpc/powerpc64/fpu/s_trunc.S (__trunc): Likewise. * sysdeps/powerpc/powerpc64/fpu/s_truncf.S (__truncf): Likewise.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/fpu/s_truncf.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/s_truncf.S | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_truncf.S b/sysdeps/powerpc/powerpc64/fpu/s_truncf.S index b4fce645cd..021308ed81 100644 --- a/sysdeps/powerpc/powerpc64/fpu/s_truncf.S +++ b/sysdeps/powerpc/powerpc64/fpu/s_truncf.S @@ -41,7 +41,7 @@ EALIGN (__truncf, 4, 0) mffs fp11 /* Save current FPU rounding mode and "inexact" state. */ fcmpu cr6,fp1,fp12 /* if (x > 0.0) */ - bnllr- cr7 + bnl- cr7,.L10 mtfsfi 7,1 /* Set rounding toward 0 mode. */ ble- cr6,.L4 fadds fp1,fp1,fp13 /* x+= TWO23; */ @@ -61,6 +61,12 @@ EALIGN (__truncf, 4, 0) mtfsf 0xff,fp11 /* Restore previous rounding mode and "inexact" state. */ blr +.L10: + /* Ensure sNaN input is converted to qNaN. */ + fcmpu cr7,fp1,fp1 + beqlr cr7 + fadds fp1,fp1,fp1 + blr END (__truncf) weak_alias (__truncf, truncf) |