c14c3ceba6
When creating function Symbols for functions that were defined in LLVM bitcode for the standard library, if any of the function parameters are integer types, create two ispc-side Symbols: one where the integer types are all signed and the other where they are all unsigned. This allows us to provide, for example, both store_to_int16(reference int a[], uniform int offset, int val) as well as store_to_int16(reference unsigned int a[], uniform int offset, unsigned int val). functions.
Added some additional tests to exercise the new variants of these.
Also fixed some cases where the __{load,store}_int{8,16} builtins would read from/write to memory even if the mask was all off (which could cause crashes in some cases.)
47 lines
1.9 KiB
Plaintext
47 lines
1.9 KiB
Plaintext
=== v1.0.3 === (not yet released)
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There are now both 'signed' and 'unsigned' variants of the standard library
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functions like packed_load_active() that that references to arrays of
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signed int32s and unsigned int32s respectively. (The
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{load_from,store_to}_{int8,int16}() functions have similarly been augmented
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to have both 'signed' and 'unsigned' variants.)
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In initializer expressions with variable declarations, it is no longer
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legal to initialize arrays and structs with single scalar values that then
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initialize their members; they now must be initialized with initializer
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lists in braces (or initialized after of the initializer with a loop over
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array elements, etc.)
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Added another shuffle() function to the standard library:
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"<type> shuffle(<type> v0, <type> v1, int permute)", where the permutation
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vector indexes over the concatenation of the two vectors (e.g. the value
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0 corresponds to the first element of v0, the value 2*programCount-1
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corresponds to the last element of v1, etc.)
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=== v1.0.2 === (1 July 2011)
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Floating-point hexidecimal constants are now parsed correctly on Windows
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(fixes issue #16).
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SSE2 is now the default target if --cpu=atom is given in the command line
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arguments and another target isn't explicitly specified.
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The standard library now provides broadcast(), rotate(), and shuffle()
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routines for efficient communication between program instances.
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The MSVC solution files to build the examples on Windows now use
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/fpmath:fast when building.
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=== v1.0.1 === (24 June 2011)
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ispc no longer requires that pointers to memory that are passed in to ispc
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have alignment equal to the targets vector width; now alignment just has to
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be the regular element alignment (e.g. 4 bytes for floats, etc.) This
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change also fixed a number of cases where it previously incorrectly
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generated aligned load/store instructions in cases where the address wasn't
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actually aligned (even if the base address passed into ispc code was).
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=== v1.0 === (21 June 2011)
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Initial Release
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