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| author | Richard Henderson <rth@redhat.com> | 2004-03-31 02:34:13 +0000 |
|---|---|---|
| committer | Richard Henderson <rth@redhat.com> | 2004-03-31 02:34:13 +0000 |
| commit | b6f10974a7ec44f233d0bb071d9027eba9389d7d (patch) | |
| tree | 209b821b378c0cb6ae57f130299111df8eb425d3 /sysdeps/alpha | |
| parent | 3fa21fd813ac323f2890812b99663d7cf17578eb (diff) | |
| download | glibc-b6f10974a7ec44f233d0bb071d9027eba9389d7d.tar.gz glibc-b6f10974a7ec44f233d0bb071d9027eba9389d7d.tar.xz glibc-b6f10974a7ec44f233d0bb071d9027eba9389d7d.zip | |
* sysdeps/alpha/remqu.S: Detect power-of-two special case.
2004-03-30 Richard Henderson <rth@redhat.com> * sysdeps/alpha/remqu.S: Detect power-of-two special case.
Diffstat (limited to 'sysdeps/alpha')
| -rw-r--r-- | sysdeps/alpha/remqu.S | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/sysdeps/alpha/remqu.S b/sysdeps/alpha/remqu.S index 1a1dcad8a0..fa2eb626c7 100644 --- a/sysdeps/alpha/remqu.S +++ b/sysdeps/alpha/remqu.S @@ -54,24 +54,25 @@ __remqu: going to use the results. */ stq X, 16(sp) stq Y, 24(sp) - beq Y, DIVBYZERO + subq Y, 1, AT stt $f0, 0(sp) + and Y, AT, AT stt $f1, 8(sp) + beq AT, $powerof2 cfi_rel_offset ($f0, 0) cfi_rel_offset ($f1, 8) + ldt $f0, 16(sp) ldt $f1, 24(sp) - cvtqt $f0, $f0 cvtqt $f1, $f1 + blt X, $x_is_neg divt/c $f0, $f1, $f0 /* Check to see if Y was mis-converted as signed value. */ ldt $f1, 8(sp) - unop - nop blt Y, $y_is_neg /* Check to see if X fit in the double as an exact value. */ @@ -245,6 +246,16 @@ $y_is_neg: cfi_def_cfa_offset (0) ret $31, (RA), 1 + .align 4 + cfi_def_cfa_offset (FRAME) +$powerof2: + subq Y, 1, AT + beq Y, DIVBYZERO + and X, AT, RV + lda sp, FRAME(sp) + cfi_def_cfa_offset (0) + ret $31, (RA), 1 + cfi_endproc .size __remqu, .-__remqu |