Chad,
Yes it helps, thanks. I have started hacking bitcode-analyzer.
---ajonwa
----- Original Message -----
From: Chad Rosier
Sent: 11/05/11 09:07 PM
To: ajonwa ajonwa
Subject: Re: [LLVMdev] Enable Detailed Output llvm-bcanalyzer
ajonwa,
It will provide some of the information you're seeking, but not all.
Here's a partial dump from one of the bitcode test cases:
./llvm-bcanalyzer ~/llvm/test/Bitcode/spirit-llvm-2.9.ll.bc 2>&1 | less
Block ID #12 (FUNCTION_BLOCK):
Num Instances: 4370
Total Size: 3696434b/462054.25B/115513W
Percent of file: 28.9617%
Average Size: 845.87/105.73B/26W
Tot/Avg SubBlocks: 5365/1.227689e+00
Tot/Avg Abbrevs: 0/0.000000e+00
Tot/Avg Records: 65553/1.500069e+01
Percent Abbrevs: 32.9809%
Record Histogram:
Count # Bits % Abv Record Kind
11024 705536 INST_STORE
10930 295098 100.00 INST_LOAD
10519 575014 INST_ALLOCA
8444 692924 INST_CALL
5714 217132 100.00 INST_CAST
4370 54722 100.00 INST_RET
4370 96188 DECLAREBLOCKS
3791 263822 INST_INBOUNDS_GEP
2209 64912 INST_BR
1805 173588 INST_INVOKE
1269 88794 INST_GEP
476 30464 INST_CMP2
445 1780 100.00 INST_UNREACHABLE
161 7378 100.00 INST_BINOP
21 1488 INST_PHI
4 160 INST_EXTRACTVAL
1 94 INST_SWITCH
The above tells you there are 4379 functions in the bitcode file. Globally,
there are 11024 stores, 10930 loads, 10519 allocas, etc. Obtaining details on a
per-function basis may require hacking the bitcode-analyzer a bit
(llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp). I doubt it would take too much
effort to get what you need. Hope this helps..
Chad
On Nov 5, 2011, at 1:39 PM, ajonwa ajonwa wrote:
I need to,quickly , get key information (function size, number of instructions,
type signature , number of basic blocks, e.t.c.) about critical functions in a
module. http://llvm.org/cmds/llvm-bcanalyzer.html says that llvm-bcanalyzer can
provide such informationon a per-function basis and that this feature is enabled
by default.
I have looked at -help and -help-hidden.
---ajonwa
----- Original Message -----
From: Chad Rosier
Sent: 11/05/11 07:42 PM
To: ajonwa ajonwa
Subject: Re: [LLVMdev] Enable Detailed Output llvm-bcanalyzer
On Nov 5, 2011, at 12:14 PM, ajonwa ajonwa wrote:
Hello all,
Does anyone know how to make llvm-bcanalyzer produce detailed output i.e.
provides additional information on a per-function basis.
Have you looked at -help and -help-hidden? What information are you looking for
specifically?
Chad
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