diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/fpu/s_roundf.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/s_roundf.S | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_roundf.S b/sysdeps/powerpc/powerpc64/fpu/s_roundf.S index d2e29fdb8f..23ee4c052b 100644 --- a/sysdeps/powerpc/powerpc64/fpu/s_roundf.S +++ b/sysdeps/powerpc/powerpc64/fpu/s_roundf.S @@ -21,9 +21,11 @@ .section ".toc","aw" .LC0: /* 2**23 */ - .tc FD_4b000000_0[TC],0x4b00000000000000 + .tc FD_41600000_0[TC],0x4160000000000000 .LC1: /* 0.5 */ - .tc FD_3f000000_0[TC],0x3f00000000000000 + .tc FD_3fe00000_0[TC],0x3fe0000000000000 +.LC2: /* -0.0 */ + .tc FD_80000000_0[TC],0x8000000000000000 .section ".text" /* float [fp1] roundf (float x [fp1]) @@ -36,23 +38,22 @@ "Round toward Zero" mode and round by adding +-0.5 before rounding to the integer value. */ -EALIGN (__roundf, 4, 0) +ENTRY (__roundf ) CALL_MCOUNT 0 mffs fp11 /* Save current FPU rounding mode. */ - lfs fp13,.LC0@toc(2) + lfd fp13,.LC0@toc(2) fabs fp0,fp1 fsubs fp12,fp13,fp13 /* generate 0.0 */ fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO23) */ fcmpu cr6,fp1,fp12 /* if (x > 0.0) */ bnllr- cr7 mtfsfi 7,1 /* Set rounding mode toward 0. */ - lfs fp10,.LC1@toc(2) + lfd fp10,.LC1@toc(2) ble- cr6,.L4 fadds fp1,fp1,fp10 /* x+= 0.5; */ fadds fp1,fp1,fp13 /* x+= TWO23; */ fsubs fp1,fp1,fp13 /* x-= TWO23; */ - fabs fp1,fp1 /* if (x == 0.0) */ - /* x = 0.0; */ +.L9: mtfsf 0x01,fp11 /* restore previous rounding mode. */ blr .L4: @@ -60,10 +61,10 @@ EALIGN (__roundf, 4, 0) bge- cr6,.L9 /* if (x < 0.0) */ fsubs fp1,fp9,fp13 /* x-= TWO23; */ fadds fp1,fp1,fp13 /* x+= TWO23; */ - fnabs fp1,fp1 /* if (x == 0.0) */ - /* x = -0.0; */ -.L9: - mtfsf 0x01,fp11 /* restore previous rounding mode. */ + fcmpu cr5,fp1,fp12 /* if (x > 0.0) */ + mtfsf 0x01,fp11 /* restore previous rounding mode. */ + bnelr+ cr5 + lfd fp1,.LC2@toc(2) /* x must be -0.0 for the 0.0 case. */ blr END (__roundf) |