http://llvm.org https://git.amat.us/llvm/atom/lib/ExecutionEngine/Interpreter?h=release_22 2007-12-29T20:36:04Z 2007-12-29T20:36:04Z Chris Lattner sabre@nondot.org 2007-12-29T20:36:04Z urn:sha1:4ee451de366474b9c228b4e5fa573795a715216d git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8 2007-12-29T20:09:26Z Chris Lattner sabre@nondot.org 2007-12-29T20:09:26Z urn:sha1:fc643c5e88c596f217750dd91fcc66488dfed73d git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45415 91177308-0d34-0410-b5e6-96231b3b80d8 2007-12-14T15:41:34Z Dan Gohman gohman@apple.com 2007-12-14T15:41:34Z urn:sha1:ded2b0d0fb0d4fa09198e3d05da529d2c97214c3 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45034 91177308-0d34-0410-b5e6-96231b3b80d8 2007-12-12T06:16:47Z Zhou Sheng zhousheng00@gmail.com 2007-12-12T06:16:47Z urn:sha1:621deadee8967ab3a56c5478bb810b7200c48edb not support it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44914 91177308-0d34-0410-b5e6-96231b3b80d8 2007-12-12T04:55:43Z Zhou Sheng zhousheng00@gmail.com 2007-12-12T04:55:43Z urn:sha1:6a7951ce9bc9e5f21fcee7314893345acd4e77d7 Make lli interpreter correctly call external functions sin()/cos(), __cxa_guard_acquire() and __cxa_guard_release(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44910 91177308-0d34-0410-b5e6-96231b3b80d8 2007-12-10T14:43:10Z Duncan Sands baldrick@free.fr 2007-12-10T14:43:10Z urn:sha1:22ad1d72cd4e5054389c94e1c03df4564c4a466a get it to compile. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44791 91177308-0d34-0410-b5e6-96231b3b80d8 2007-12-06T01:08:09Z Chris Lattner sabre@nondot.org 2007-12-06T01:08:09Z urn:sha1:9f2f142d255bc96f109dd5c6524a485937b1f3a1 delete one ExecutionEngine ctor, minor cleanup. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44646 91177308-0d34-0410-b5e6-96231b3b80d8 2007-11-28T17:07:01Z Duncan Sands baldrick@free.fr 2007-11-28T17:07:01Z urn:sha1:afa3b6da11bc05281bcf09e45de9e037e0ee5011 use them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44403 91177308-0d34-0410-b5e6-96231b3b80d8 2007-11-01T20:53:16Z Duncan Sands baldrick@free.fr 2007-11-01T20:53:16Z urn:sha1:514ab348fddcdffa8367685dc608b2f8d5de986d The meaning of getTypeSize was not clear - clarifying it is important now that we have x86 long double and arbitrary precision integers. The issue with long double is that it requires 80 bits, and this is not a multiple of its alignment. This gives a primitive type for which getTypeSize differed from getABITypeSize. For arbitrary precision integers it is even worse: there is the minimum number of bits needed to hold the type (eg: 36 for an i36), the maximum number of bits that will be overwriten when storing the type (40 bits for i36) and the ABI size (i.e. the storage size rounded up to a multiple of the alignment; 64 bits for i36). This patch removes getTypeSize (not really - it is still there but deprecated to allow for a gradual transition). Instead there is: (1) getTypeSizeInBits - a number of bits that suffices to hold all values of the type. For a primitive type, this is the minimum number of bits. For an i36 this is 36 bits. For x86 long double it is 80. This corresponds to gcc's TYPE_PRECISION. (2) getTypeStoreSizeInBits - the maximum number of bits that is written when storing the type (or read when reading it). For an i36 this is 40 bits, for an x86 long double it is 80 bits. This is the size alias analysis is interested in (getTypeStoreSize returns the number of bytes). There doesn't seem to be anything corresponding to this in gcc. (3) getABITypeSizeInBits - this is getTypeStoreSizeInBits rounded up to a multiple of the alignment. For an i36 this is 64, for an x86 long double this is 96 or 128 depending on the OS. This is the spacing between consecutive elements when you form an array out of this type (getABITypeSize returns the number of bytes). This is TYPE_SIZE in gcc. Since successive elements in a SequentialType (arrays, pointers and vectors) need to be aligned, the spacing between them will be given by getABITypeSize. This means that the size of an array is the length times the getABITypeSize. It also means that GEP computations need to use getABITypeSize when computing offsets. Furthermore, if an alloca allocates several elements at once then these too need to be aligned, so the size of the alloca has to be the number of elements multiplied by getABITypeSize. Logically speaking this doesn't have to be the case when allocating just one element, but it is simpler to also use getABITypeSize in this case. So alloca's and mallocs should use getABITypeSize. Finally, since gcc's only notion of size is that given by getABITypeSize, if you want to output assembler etc the same as gcc then getABITypeSize is the size you want. Since a store will overwrite no more than getTypeStoreSize bytes, and a read will read no more than that many bytes, this is the notion of size appropriate for alias analysis calculations. In this patch I have corrected all type size uses except some of those in ScalarReplAggregates, lib/Codegen, lib/Target (the hard cases). I will get around to auditing these too at some point, but I could do with some help. Finally, I made one change which I think wise but others might consider pointless and suboptimal: in an unpacked struct the amount of space allocated for a field is now given by the ABI size rather than getTypeStoreSize. I did this because every other place that reserves memory for a type (eg: alloca) now uses getABITypeSize, and I didn't want to make an exception for unpacked structs, i.e. I did it to make things more uniform. This only effects structs containing long doubles and arbitrary precision integers. If someone wants to pack these types more tightly they can always use a packed struct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43620 91177308-0d34-0410-b5e6-96231b3b80d8 2007-10-11T19:40:35Z Gabor Greif ggreif@gmail.com 2007-10-11T19:40:35Z urn:sha1:724441e64ad9dbf41579864d6364501aac8ba7db return NULL. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42871 91177308-0d34-0410-b5e6-96231b3b80d8