Displaying 8 results from an estimated 8 matches for "roffset".
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2019 Nov 22
2
Tablegen PAT limitation?
def STOREbos { // InstructionEncoding Instruction RPPInst RPPInstMMEMrr
field bits<32> Inst = { 0, 0, 0, 1, rs1{2}, rs1{1}, rs1{0}, index{0}, 0, 0, 0, 1, 0, rbase{3}, rbase{2}, rbase{1}, rbase{0}, rbase{4}, roffset{4}, roffset{3}, roffset{2}, roffset{1}, roffset{0}, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
field bits<32> SoftFail = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
int Size = 4;
string DecoderNamespace = "&qu...
2019 Nov 25
2
Tablegen PAT limitation?
...be an identifier”) was caused by tablegen being unable to match the rs1 in the pattern with any of the instruction operands.
Could you change the pattern to
[(OpNode (v1i16 MGPR:$rs1), (add (v1i32 (bitconvert (i32 SGPR32:$rbase))), (shl (v1i32 (sext (v1i16 MGPR:$roffset))), (v1i32 (build_vector (i32 uimm2:$rshift))) )))]
--
Krzysztof Parzyszek kparzysz at quicinc.com AI tools development
From: Celine <595602881 at qq.com>
Sent: Thursday, November 21, 2019 7:59 PM
To: Krzysztof Parzyszek <kpa...
2019 Nov 21
2
Tablegen PAT limitation?
Hi Krzysztof,
Today I try it on llvm9.0.0 version.
def bos : RPPInstMMEMrr<OPC_STORE,
(outs), (ins MGPR:$rs1, SGPR32:$rbase, MGPR:$roffset, uimm2:$rshift),
!strconcat(opcodestr, ""), "$rs1, [$rbase + ( $roffset << $rshift )]",
// [(OpNod...
2019 Nov 20
4
Tablegen PAT limitation?
...-LK5gWL/glibc-2.23/csu/../csu/libc-start.c:325:0
#28 0x0000000000407bd9 _start (../../../bin/llvm-tblgen+0x407bd9)
===========================================================
PATTERN: (st v1i16:{ *:[v1i16] }:$rs1, (add:{ *:[v1i32] } (shl:{ *:[v1i32] } (sext:{ *:[v1i32] } v1i16:{ *:[v1i16] }:$roffset), (build_vector:{ *:[v1i32] } (imm:{ *:[i32] })<<P:Predicate_uimm2>>:$rshift)), (bitconvert:{ *:[v1i32] } i32:{ *:[i32] }:$rbase)))<<P:Predicate_unindexedstore>><<P:Predicate_store>>
RESULT: (STOREbos v1i16:{ *:[v1i16] }:$rs1, i3...
2019 Sep 27
2
Maybe a TableGen bug?
Hi,
Here's llvm-tblgen -print-records message:
def LOADbos { // Instruction ABCInst ABCInstMMEMrr
field bits<32> Inst = { 0, 0, 0, 0, rs1{2}, rs1{1}, rs1{0}, index{0}, 0,
0, 0, 1, 0, rbase{3}, rbase{2}, rbase{1}, rbase{0}, rbase{4}, roffset{4},
roffset{3}, roffset{2}, roffset{1}, roffset{0}, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
field bits<32> SoftFail = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
string Namespace = "ABC";
dag OutOperandList = (outs GPR_OUT:$rs1);...
2018 Jan 21
2
Re: [PATCH nbdkit] filters: Add copy-on-write filter.
...; bm_bit;
+}
+
/* These are the block operations. They always read or write a single
* whole block of size blksize.
*/
@@ -207,36 +265,17 @@ static int
blk_read (struct nbdkit_next_ops *next_ops, void *nxdata,
uint64_t blknum, uint8_t *block)
{
- off_t offset = blknum * blksize, roffset;
- bool hole;
-
- nbdkit_debug ("cow: blk_read block %" PRIu64 " (offset %" PRIu64 ")",
- blknum, (uint64_t) offset);
+ off_t offset = blknum * BLKSIZE;
+ bool allocated = blk_is_allocated (blknum);
- /* Find out if the current block contains data...
2018 Jan 20
4
[PATCH nbdkit] filters: Add copy-on-write filter.
Eric, you'll probably find the design "interesting" ...
It does work, for me at least.
Rich.
2018 Jan 20
0
[PATCH nbdkit] filters: Add copy-on-write filter.
...*next_ops, void *nxdata, void *handle)
+{
+ return 1;
+}
+
+/* These are the block operations. Note they implicitly read or write
+ * into the global ‘block’ array.
+ */
+static int
+blk_read (struct nbdkit_next_ops *next_ops, void *nxdata, uint64_t blknum)
+{
+ off_t offset = blknum * blksize, roffset;
+ bool hole;
+
+ nbdkit_debug ("cow: blk_read block %" PRIu64 " (offset %" PRIu64 ")",
+ blknum, (uint64_t) offset);
+
+ /* Find out if the current block contains data or is a hole. */
+ roffset = lseek (fd, offset, SEEK_DATA);
+ if (roffset == -1)...