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d2aa5dca74
Import ashldr3, ashrdi3 and lshrdi3 to squash possible libgcc fp mismatch,
resulting in the following warning:
mips-linux-gnu-ld: Warning: /usr/lib/gcc/mips-linux-gnu/4.7/libgcc.a(_lshrdi3.o) uses hard float, u-boot uses soft float
mips-linux-gnu-ld: Warning: /usr/lib/gcc/mips-linux-gnu/4.7/libgcc.a(_ashldi3.o) uses hard float, u-boot uses soft float
Imported from Linux (linux-next 20120723) as of commit:
commit 72fbfb260197a52c2bc2583f3e8f15d261d0f924
Author: Ralf Baechle <ralf@linux-mips.org>
Date: Wed Jun 7 13:25:37 2006 +0100
[MIPS] Fix optimization for size build.
It took a while longer than on other architectures but gcc has finally
started to strike us as well ...
This also fixes the damage by 6edfba1b33c701108717f4e036320fc39abe1912.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
[<daniel.schwierzeck@gmail.com>: removed USE_PRIVATE_LIBGCC = yes]
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
27 lines
445 B
C
27 lines
445 B
C
#include "libgcc.h"
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long long __ashrdi3(long long u, word_type b)
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{
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DWunion uu, w;
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word_type bm;
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if (b == 0)
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return u;
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uu.ll = u;
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bm = 32 - b;
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if (bm <= 0) {
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/* w.s.high = 1..1 or 0..0 */
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w.s.high =
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uu.s.high >> 31;
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w.s.low = uu.s.high >> -bm;
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} else {
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const unsigned int carries = (unsigned int) uu.s.high << bm;
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w.s.high = uu.s.high >> b;
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w.s.low = ((unsigned int) uu.s.low >> b) | carries;
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}
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return w.ll;
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}
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