kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

MIPS: math-emu: Avoid multiple assignment

Browse source 
Replace several instances of multiple assignment with individual
assignments.

Signed-off-by: Aleksandar Markovic <aleksandar.markovic@mips.com>
Cc: Douglas Leung <douglas.leung@mips.com>
Cc: Goran Ferenc <goran.ferenc@mips.com>
Cc: James Hogan <james.hogan@mips.com>
Cc: Maciej W. Rozycki <macro@mips.com>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Miodrag Dinic <miodrag.dinic@mips.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Petar Jovanovic <petar.jovanovic@mips.com>
Cc: Raghu Gandham <raghu.gandham@mips.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/17587/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Aleksandar Markovic 2017-11-02 12:14:04 +01:00 committed by Ralf Baechle
parent 8904d5b1a3
commit 61100500a1
3 changed files with 8 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
arch/mips/math-emu/cp1emu.c
View file

@ -1190,7 +1190,8 @@ emul:
if (!cpu_has_mips_r6 || delay_slot(xcp))
return SIGILL;
cond = likely = 0;
likely = 0;
cond = 0;
fpr = &current->thread.fpu.fpr[MIPSInst_RT(ir)];
bit0 = get_fpr32(fpr, 0) & 0x1;
switch (MIPSInst_RS(ir)) {

6
arch/mips/math-emu/dp_sqrt.c
View file

@ -91,7 +91,8 @@ union ieee754dp ieee754dp_sqrt(union ieee754dp x)
scalx -= 256;
}
y = x = builddp(0, xe + DP_EBIAS, xm & ~DP_HIDDEN_BIT);
x = builddp(0, xe + DP_EBIAS, xm & ~DP_HIDDEN_BIT);
y = x;
/* magic initial approximation to almost 8 sig. bits */
yh = y.bits >> 32;
@ -108,7 +109,8 @@ union ieee754dp ieee754dp_sqrt(union ieee754dp x)
/* triple to almost 56 sig. bits: y ~= sqrt(x) to within 1 ulp */
/* t=y*y; z=t; pt[n0]+=0x00100000; t+=z; z=(x-z)*y; */
z = t = ieee754dp_mul(y, y);
t = ieee754dp_mul(y, y);
z = t;
t.bexp += 0x001;
t = ieee754dp_add(t, z);
z = ieee754dp_mul(ieee754dp_sub(x, z), y);

3
arch/mips/math-emu/sp_sqrt.c
View file

@ -82,7 +82,8 @@ union ieee754sp ieee754sp_sqrt(union ieee754sp x)
/* generate sqrt(x) bit by bit */
ix += ix;
q = s = 0; /* q = sqrt(x) */
s = 0;
q = 0; /* q = sqrt(x) */
r = 0x01000000; /* r = moving bit from right to left */
while (r != 0) {