search for: w19

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2015 Feb 19
2
[LLVMdev] ScheduleDAGInstrs computes deps using IR Values that may be invalid
...------------------------------------------------------------------------- BB#14: derived from LLVM BB %if.end.1 Live Ins: %X16 %X17 %X18 %X7 %X0 %X6 %X4 %W8 %X15 %X14 %W3 %W2 %X1 %X10 %X11 %X12 %X13 %X9 Predecessors according to CFG: BB#12 %X5<def> = ADDXrr %X16, %X13 * %W19<def> = LDRBBui %X5, 1; mem:LD1[%scevgep95](tbaa=<0x6e02518>) * %W3<def> = MADDWrrr %W2<kill>, %W3<kill>, %WZR * %W2<def> = SUBWrr %W3<kill>, %W19<kill> * STRBBui %W2<kill>, %X5<kill>, 1; mem:ST1[%scevgep95](tbaa=<0x6e0...
2018 Dec 05
2
Strange regalloc behaviour: one more available register causes much worse allocation
...patch is not correct, but it happens to be a useful way of provoking the problem. Without the patch generating assembly with llc -mcpu=cortex-a57 everything looks fine, but with the patch we get this (which comes from the block bb.17.switchdest13): .LBB0_16: mov x29, x24 mov w24, w20 mov w20, w19 mov w19, w7 mov w7, w6 mov w6, w5 mov w5, w2 mov x2, x18 mov w18, w15 orr w15, wzr, #0x1c str w15, [x8, #8] mov w0, wzr mov w15, w18 mov x18, x2 mov w2, w5 mov w5, w6 mov w6, w7 mov w7, w19 mov w19, w20 mov w20, w24 mov x24, x29 b .LBB0_3 It looks like the orr and str have barge...
2018 Dec 05
3
Strange regalloc behaviour: one more available register causes much worse allocation
...pens to be a useful way of provoking the problem. Without the patch generating assembly with llc -mcpu=cortex-a57 everything looks fine, but with the patch we get this (which comes from the block bb.17.switchdest13): .LBB0_16: mov x29, x24 mov w24, w20 mov w20, w19 mov w19, w7 mov w7, w6 mov w6, w5 mov w5, w2 mov x2, x18 mov w18, w15 orr w15, wzr, #0x1c str w15, [x8, #8] mov w0, wzr mov w15, w18 mov x18, x2 mov w2, w5...
2010 Dec 17
3
Alternative to extended recode sintax?
Dear R-users, I have a factor variable within my data frame which I derive week after week from a POSIXct variable using the cut(var,"weeks") command I have found in the chron package. The levels() command gives me: [1] "2009-03-30 00:00:00" "2009-04-06 00:00:00" "2009-04-13 00:00:00" "2009-04-20 00:00:00" "2009-04-27 00:00:00"
2015 May 06
2
[LLVMdev] [lld] Wrong references for C++ COMDAT groups
...ndefined Where it should be: 0000000000000000 <_Z4funcj>: 0: a9bd57f6 stp x22, x21, [sp,#-48]! 4: a9014ff4 stp x20, x19, [sp,#16] 8: a9027bfd stp x29, x30, [sp,#32] c: 910083fd add x29, sp, #0x20 10: 2a0003f3 mov w19, w0 And there is no relocation (static or dynamic) point to the faulty instruction. It exist, however, a group section relocation with same offset, but for a different text segments (the exception handler stub create by clang): Relocation section '.rela.text' at offset 0xed8 contains 2 en...
2015 May 07
2
[LLVMdev] [lld] Wrong references for C++ COMDAT groups
...00 <_Z4funcj>: > 0: a9bd57f6 stp x22, x21, [sp,#-48]! > 4: a9014ff4 stp x20, x19, [sp,#16] > 8: a9027bfd stp x29, x30, [sp,#32] > c: 910083fd add x29, sp, #0x20 > 10: 2a0003f3 mov w19, w0 > > And there is no relocation (static or dynamic) point to the faulty instruction. > It exist, however, a group section relocation with same offset, but for a > different text segments (the exception handler stub create by clang): > > Relocation section '...