Displaying 20 results from an estimated 174 matches for "lsl".
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2012 May 08
2
How to deal with a dataframe within a dataframe?
...ic value but a vector of two elements using return(c(val1,
val2)). I don't know how to access the individual columns of that
vector in the resulting dataframe though. How is this done correctly?
Thanks, robert
> agg <- aggregate(formula=df$value ~ df$quarter + df$tool,
+ FUN=cp.cpk, lsl=1300, usl=1500)
> head(agg)
df$quarter df$tool df$value
1 09Q3 VS1A 1.800534, 1.628483
2 10Q1 VS1A 1.299652, 1.261302
3 10Q2 VS1A 1.699018, 1.381570
4 10Q3 VS1A 1.311681, 1.067232
> head(agg["df$value"])
df$value
1 1.800534...
2019 Aug 10
2
Re: [PATCH libnbd 9/9] FOR DISCUSSION ONLY: api: Add ‘allow’ parameter to nbd_connect_uri to control permitted URIs.
...ter in this patch, this change in the docs and example code
implies the use of the REQUIRE_TLS flag. Is that intentional that
passing all flags forbids the use of non-encrypted connections?
> +++ b/generator/generator
> @@ -939,7 +939,17 @@ let cmd_flags = {
> "REQ_ONE", 1 lsl 3;
> ]
> }
> -let all_flags = [ cmd_flags ]
> +let connect_uri_allow_flags = {
> + flag_prefix = "CONNECT_URI";
> + all_flags_bitmask = true;
> + flags = [
> + "ALLOW_TCP", 1 lsl 0;
> + "ALLOW_UNIX", 1 lsl 1;
> + "A...
2017 Dec 06
2
[LLD] Slow callstacks in gdb
...ecific_integral is fairly efficient. For example, on
x86_64 reading 32 bits with 1 2 and 4 byte alignment produces in all
cases:
movl (%rdi), %eax
But on armv6 the aligned case is
ldr r0, [r0]
the 2 byte aligned case is
ldrh r1, [r0, #2]
ldrh r0, [r0]
orr r0, r0, r1, lsl #16
and the unaligned case is
ldrb r1, [r0]
ldrb r2, [r0, #1]
ldrb r3, [r0, #2]
ldrb r0, [r0, #3]
orr r1, r1, r2, lsl #8
orr r0, r3, r0, lsl #8
orr r0, r1, r0, lsl #16
On armv7 it is a single ldr on all cases.
Now, I don't really know how much we suppor...
2015 Nov 11
3
[AArch64] Address computation folding
...ing at some AArch64 benchmarks and noticed some simple cases
where addresses are being folded into the address mode computations
and was curious as to why. In particular, consider the following
simple example:
void f2(unsigned long *x, unsigned long c)
{
x[c] *= 2;
}
This generates:
lsl x8, x1, #3
ldr x9, [x0, x8]
lsl x9, x9, #1
str x9, [x0, x8]
Given the two uses of the address computation I was expecting this:
add x8, x0, x1, lsl #3
ldr x9, [x8]
lsl x9, x9, #1
str x9, [x8]
>From reading 'SelectAddrModeXRO' the computation is getting folded if
the add...
2019 Aug 23
1
[libnbd PATCH 1/1] api: Add support for FAST_ZERO flag
...ROTOCOL_H */
diff --git a/generator/generator b/generator/generator
index c509573..9b1f5d8 100755
--- a/generator/generator
+++ b/generator/generator
@@ -958,10 +958,11 @@ let all_enums = [ tls_enum ]
let cmd_flags = {
flag_prefix = "CMD_FLAG";
flags = [
- "FUA", 1 lsl 0;
- "NO_HOLE", 1 lsl 1;
- "DF", 1 lsl 2;
- "REQ_ONE", 1 lsl 3;
+ "FUA", 1 lsl 0;
+ "NO_HOLE", 1 lsl 1;
+ "DF", 1 lsl 2;
+ "REQ_ONE", 1 lsl 3;
+ "FAST_ZERO", 1 lsl 4;
]...
2017 Nov 07
4
Questions about code-size optimizations in ARM backend
...y first candidate was switch-case lowering.
I also created a Bugzilla issue for this topic:
https://bugs.llvm.org/show_bug.cgi?id=34902
The full example code and the generated assembly for GCC and for LLVM is
in the Bugzilla issue.
My first idea was to simplify the following instruction pattern
*lsl r0, r0, #2**
** ldr pc, [r0, r1]*
to this:
*ldr pc, [r1, r0, lsl #2]*
but then I got really confused when I started to look into the
machine-dependent optimization passes in the backend.
I get a dump with the '-print-machineinstrs' option from the
MachineFunctionPass a...
2013 Jan 23
2
[LLVMdev] introducing sign extending halfword loads into the LLVM IR
...gt; LBB1_1:
> ldrsh r3, [r1] # loads a short that is sign-extended to 32 bits
> mov r4, lr
> cmp r3, #2048
> bge .LBB1_3
> and r4, r3, r12 # mask with 0xffff to convert to short again
> lsl r4, r4, #16 # this lsl and the following
> asr r5, r4, #16 # asr implement sign-extension to 32 bits again ....
> ldr r4, .LCPI1_1
> cmn r5, #2048
> movge r4, r3
> .LBB1_3:
> str r4, [r2, r0,...
2005 Dec 06
1
ARM4 filter code
...er_mem2 bit exact with the C.
-Fritz
-------------- next part --------------
--- filters_arm4.h 2005-11-16 06:08:28.000000000 -0500
+++ filters_arm4_new.h 2005-12-06 11:06:51.012221200 -0500
@@ -240,9 +240,11 @@
"\tmov %8, %8, lsr #15\n"
"\tadd %10, %8, %9, lsl #17\n"
"\tldrsh %6, [%2], #2\n"
- "\tsmull %8, %9, %5, %6\n"
- "\tadd %10, %10, %8, lsr #15\n"
- "\tadd %10, %10, %9, lsl #17\n"
+ "\trsb %11, %5, #0\n"
+ "\tsmull %8, %9,...
2020 Sep 11
0
[libnbd PATCH v2 4/5] api: Add STRICT_FLAGS to set_strict_mode
...165,6 +166,7 @@ let all_enums = [ tls_enum; block_size_enum ]
(* Flags. See also Constants below. *)
let cmd_flags = {
flag_prefix = "CMD_FLAG";
+ guard = Some "((h->strict & LIBNBD_STRICT_FLAGS) || flags > UINT16_MAX)";
flags = [
"FUA", 1 lsl 0;
"NO_HOLE", 1 lsl 1;
@@ -175,6 +177,7 @@ let cmd_flags = {
}
let handshake_flags = {
flag_prefix = "HANDSHAKE_FLAG";
+ guard = None;
flags = [
"FIXED_NEWSTYLE", 1 lsl 0;
"NO_ZEROES", 1 lsl 1;
@@ -182,12 +185,15 @@ let handshak...
2005 Aug 12
3
Dating Objects
Hi
I know this subject has been mentioned before but from the mail archives
I'm under the impression that this is not possible ?
I'm trying to carryout the equivalent of ls -l in R to give some
date/time label to each of my objects
If the case is that there is no equivalent, is it possible to list all
objects in an environment that share a common component ?
So that the common
2007 Dec 02
2
Optimised qmf_synth and iir_mem16
...14, r5 @ Clip positive
cmn r14, r5
rsblt r14, r5, #0 @ Clip negative
strh r14, [r2], #2 @ Write result to y[i]
rsb r14, r14, #0 @ r14 = -y[i]
ldmia r1!, { r10-r12 } @ r10-r12 = den[0..5]
mov r5, r10, lsl #16
mov r5, r5, asr #16
mla r5, r14, r5, r6 @ mem[0] = mem[1] - den[0]*y[i]
mov r10, r10, asr #16
mla r6, r14, r10, r7 @ mem[1] = mem[2] - den[1]*y[i]
mov r10, r11, lsl #16
mov r10, r10, asr #16
mla r7, r14, r10, r8 @ mem...
2019 Aug 11
0
Re: [PATCH libnbd 9/9] FOR DISCUSSION ONLY: api: Add ‘allow’ parameter to nbd_connect_uri to control permitted URIs.
...ode
> implies the use of the REQUIRE_TLS flag. Is that intentional that
> passing all flags forbids the use of non-encrypted connections?
Yes I believe it's wrong.
> > +++ b/generator/generator
> > @@ -939,7 +939,17 @@ let cmd_flags = {
> > "REQ_ONE", 1 lsl 3;
> > ]
> > }
> > -let all_flags = [ cmd_flags ]
> > +let connect_uri_allow_flags = {
> > + flag_prefix = "CONNECT_URI";
> > + all_flags_bitmask = true;
> > + flags = [
> > + "ALLOW_TCP", 1 lsl 0;
> > + "...
2020 Sep 17
2
Re: [libnbd PATCH v2 4/5] api: Add STRICT_FLAGS to set_strict_mode
...= [ tls_enum; block_size_enum ]
> (* Flags. See also Constants below. *)
> let cmd_flags = {
> flag_prefix = "CMD_FLAG";
> + guard = Some "((h->strict & LIBNBD_STRICT_FLAGS) || flags > UINT16_MAX)";
> flags = [
> "FUA", 1 lsl 0;
> "NO_HOLE", 1 lsl 1;
> @@ -175,6 +177,7 @@ let cmd_flags = {
> }
> let handshake_flags = {
> flag_prefix = "HANDSHAKE_FLAG";
> + guard = None;
> flags = [
> "FIXED_NEWSTYLE", 1 lsl 0;
> "NO_ZEROES",...
2019 May 28
0
[libnbd PATCH 4/4] api: Add DF flag support for pread
...iple
+packets would otherwise allow a more efficient representation of
+holes contained in the region (if that is supported - some servers
+cannot do this, see C<nbd_can_df>).";
};
"pwrite", {
@@ -1774,6 +1790,7 @@ let constants = [
"CMD_FLAG_FUA", 1 lsl 0;
"CMD_FLAG_NO_HOLE", 1 lsl 1;
+ "CMD_FLAG_DF", 1 lsl 2;
"CMD_FLAG_REQ_ONE", 1 lsl 3;
]
diff --git a/lib/flags.c b/lib/flags.c
index 421a7d2..cdbc28f 100644
--- a/lib/flags.c
+++ b/lib/flags.c
@@ -42,6 +42,11 @@ nbd_internal_set_size_and_flags (...
2017 Dec 05
2
[LLD] Slow callstacks in gdb
Martin Richtarsky <s at martinien.de> writes:
> Output looks as follows [1] Seems sh_offset is missing?
That is what readelf prints as Off
> [17] .rela.text RELA 0000000000000000 071423 001728 18
> 1 4 8
The offset of rela text should have been aligned, but it is not. Can you
report a bug on icc? As a work around using the gnu assembler if
possible
2007 Dec 12
2
Speex crashing on ARM with assembler optimization enabled.
...08d68 in main ()
(gdb) disassemble
Dump of assembler code for function open_loop_nbest_pitch:
... skipped...
0x40030300 <open_loop_nbest_pitch+620>: add r0, r3, r8
0x40030304 <open_loop_nbest_pitch+624>: ldrsh r3, [r0]
0x40030308 <open_loop_nbest_pitch+628>: mov r3, r3, lsl #1
0x4003030c <open_loop_nbest_pitch+632>: strh r3, [r0], #2
0x40030310 <open_loop_nbest_pitch+636>: add r6, r6, #1 ; 0x1
0x40030314 <open_loop_nbest_pitch+640>: cmp r6, r7
0x40030318 <open_loop_nbest_pitch+644>: bne 0x40030304
<open_loop_nbest_pitch+6...
2007 Dec 12
2
Speex crashing on ARM with assembler optimization enabled.
Hi,
I'm trying to get speex working on an ARM board (ARM926EJ-Sid(wb) core,
ARM 5TE architecture) and getting segfaults if build with "--enable-fixed-point
--enable-arm5e-asm" options. If I use just "--enable-fixed-point", then
it runs fine, but once I add "--enable-arm5e-asm" it start crashing
(I use testenc to test it).
Further investigation showed, that it
2012 Apr 16
1
How to create a data.frame from several time series?
...'t know how
to do that because I don't know beforehand how many series I create in
the for() loop, how to distinguish them by (unknown beforehand) tool
names, and how to supply them to ts.union.
Thanks,
robert
############################ CODE HERE
library(zoo)
ppk <- function(data, lsl, usl) {
if (length(data) < 15) {
return(NA)
} else {
return (min(mean(data)-lsl,
usl-mean(data))/(3*sd(data)))
}
}
load <- function(filename) {
d <- read.table(filename,
header=TRUE,
sep='\t')
# filter data
d <- d[...
2009 Feb 17
1
[LLVMdev] ARM backend playing with alternative jump table implementations
...ackend.
As a warmup exercise I wanted to be able to move
jumptables especially large ones out of the code section.
Currently the idiom for jump tables loooks like this
// .set PCRELV0, (.LJTI9_0_0-(.LPCRELL0+8))
// .LPCRELL0:
// add r3, pc, #PCRELV0
// ldr pc, [r3, +r0, lsl #2]
// .LJTI9_0_0:
// .long .LBB9_2
// .long .LBB9_5
// .long .LBB9_7
// .long .LBB9_4
// .long .LBB9_8
I would like to be able to change this to something like:
ldr r3, .POOL_ADDR
ldr pc, [r3, +r0, lsl #2
.POOL...
2019 Aug 10
0
[PATCH libnbd 9/9] FOR DISCUSSION ONLY: api: Add ‘allow’ parameter to nbd_connect_uri to control permitted URIs.
...fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
diff --git a/generator/generator b/generator/generator
index fe24738..5f5523a 100755
--- a/generator/generator
+++ b/generator/generator
@@ -939,7 +939,17 @@ let cmd_flags = {
"REQ_ONE", 1 lsl 3;
]
}
-let all_flags = [ cmd_flags ]
+let connect_uri_allow_flags = {
+ flag_prefix = "CONNECT_URI";
+ all_flags_bitmask = true;
+ flags = [
+ "ALLOW_TCP", 1 lsl 0;
+ "ALLOW_UNIX", 1 lsl 1;
+ "ALLOW_TLS", 1 lsl 2;
+ "REQUIRE_TLS&...