8938e14442
The compiler now supports an --emit-c++ option, which generates generic vector C++ code. To actually compile this code, the user must provide C++ code that implements a variety of types and operations (e.g. adding two floating-point vector values together, comparing them, etc). There are two examples of this required code in examples/intrinsics: generic-16.h is a "generic" 16-wide implementation that does all required with scalar math; it's useful for demonstrating the requirements of the implementation. Then, sse4.h shows a simple implementation of a SSE4 target that maps the emitted function calls to SSE intrinsics. When using these example implementations with the ispc test suite, all but one or two tests pass with gcc and clang on Linux and OSX. There are currently ~10 failures with icc on Linux, and ~50 failures with MSVC 2010. (To be fixed in coming days.) Performance varies: when running the examples through the sse4.h target, some have the same performance as when compiled with --target=sse4 from ispc directly (options), while noise is 12% slower, rt is 26% slower, and aobench is 2.2x slower. The details of this haven't yet been carefully investigated, but will be in coming days as well. Issue #92.
44 lines
1.1 KiB
Python
Executable File
44 lines
1.1 KiB
Python
Executable File
#!/usr/bin/python
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import sys
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import string
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import re
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import subprocess
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import platform
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import os
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length=0
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src=str(sys.argv[1])
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target = re.sub("builtins/target-", "", src)
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target = re.sub(r"builtins\\target-", "", target)
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target = re.sub("builtins/", "", target)
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target = re.sub(r"builtins\\", "", target)
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target = re.sub("\.ll$", "", target)
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target = re.sub("\.c$", "", target)
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target = re.sub("-", "_", target)
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llvm_as="llvm-as"
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if platform.system() == 'Windows' or string.find(platform.system(), "CYGWIN_NT") != -1:
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llvm_as = os.getenv("LLVM_INSTALL_DIR").replace("\\", "/") + "/bin/" + llvm_as
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try:
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as_out=subprocess.Popen([llvm_as, "-", "-o", "-"], stdout=subprocess.PIPE)
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except IOError:
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print >> sys.stderr, "Couldn't open " + src
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sys.exit(1)
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print "unsigned char builtins_bitcode_" + target + "[] = {"
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for line in as_out.stdout.readlines():
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length = length + len(line)
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for c in line:
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print ord(c)
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print ", "
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print " 0 };\n\n"
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print "int builtins_bitcode_" + target + "_length = " + str(length) + ";\n"
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as_out.wait()
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sys.exit(as_out.returncode)
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