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82 lines
2.6 KiB
82 lines
2.6 KiB
7 years ago
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# commit 6a31fe7f9cce72b69fce8fe499a2c6ad492c2311
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# Author: Alan Modra <amodra@gmail.com>
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# Date: Sat Aug 17 18:32:18 2013 +0930
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#
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# PowerPC floating point little-endian [13 of 15]
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# http://sourceware.org/ml/libc-alpha/2013-08/msg00088.html
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#
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# * sysdeps/powerpc/powerpc32/fpu/s_roundf.S: Increase alignment of
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# constants to usual value for .cst8 section, and remove redundant
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# high address load.
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# * sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S: Use float
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# constant for 0x1p52. Load little-endian words of double from
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# correct stack offsets.
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#
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diff -urN glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/fpu/s_roundf.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/fpu/s_roundf.S
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--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/fpu/s_roundf.S 2014-05-27 22:50:13.000000000 -0500
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/fpu/s_roundf.S 2014-05-27 22:50:13.000000000 -0500
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@@ -19,7 +19,7 @@
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#include <sysdep.h>
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.section .rodata.cst8,"aM",@progbits,8
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- .align 2
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+ .align 3
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.LC0: /* 2**23 */
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.long 0x4b000000
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.LC1: /* 0.5 */
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@@ -60,7 +60,6 @@
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#ifdef SHARED
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lfs fp10,.LC1-.LC0(r9)
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#else
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- lis r9,.LC1@ha
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lfs fp10,.LC1@l(r9)
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#endif
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ble- cr6,.L4
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diff -urN glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S
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--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S 2014-05-27 22:50:13.000000000 -0500
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S 2014-05-27 22:50:13.000000000 -0500
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@@ -19,12 +19,10 @@
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#include <sysdep.h>
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#include <math_ldbl_opt.h>
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- .section .rodata.cst12,"aM",@progbits,12
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+ .section .rodata.cst8,"aM",@progbits,8
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.align 3
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- .LC0: /* 0x1.0000000000000p+52 == 2^52 */
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- .long 0x43300000
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- .long 0x00000000
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- .long 0x3f000000 /* Use this for 0.5 */
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+ .LC0: .long (52+127)<<23 /* 0x1p+52 */
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+ .long (-1+127)<<23 /* 0.5 */
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.section ".text"
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@@ -57,12 +55,12 @@
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addi r9,r9,.LC0-got_label@l
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mtlr r11
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cfi_same_value (lr)
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- lfd fp9,0(r9)
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- lfs fp10,8(r9)
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+ lfs fp9,0(r9)
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+ lfs fp10,4(r9)
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#else
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lis r9,.LC0@ha
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- lfd fp9,.LC0@l(r9) /* Load 2^52 into fpr9. */
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- lfs fp10,.LC0@l+8(r9) /* Load 0.5 into fpr10. */
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+ lfs fp9,.LC0@l(r9) /* Load 2^52 into fpr9. */
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+ lfs fp10,.LC0@l+4(r9) /* Load 0.5 into fpr10. */
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#endif
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fabs fp2,fp1 /* Get the absolute value of x. */
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fsub fp12,fp10,fp10 /* Compute 0.0 into fpr12. */
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@@ -80,8 +78,8 @@
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nop
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nop
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nop
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- lwz r4,12(r1) /* Load return as integer. */
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- lwz r3,8(r1)
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+ lwz r3,8+HIWORD(r1) /* Load return as integer. */
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+ lwz r4,8+LOWORD(r1)
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.Lout:
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addi r1,r1,16
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blr
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