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Move constant instructions into meta.

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Add new immediate types for floating point and vector immediates.
Use new immediates to define the constant value instructions in meta.

Split the fconst instruction into two: f32const and f64const. This prevents
confusion about the interpretation of 64 immediate bits when generating an f32
constant.

Add an immvector ImmediateType. This immediate type is variable length, and
provides all the bits of a SIMD vector directly.
This commit is contained in:
Jakob Stoklund Olesen
2016-03-31 14:18:02 -07:00
parent c3233fb332
commit e5305c249b
5 changed files with 87 additions and 30 deletions
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13
meta/cretonne/immediates.py
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@@ -10,3 +10,16 @@ from . import ImmediateType
#: This type of immediate integer can interact with SSA values with any
#: :py:class:`cretonne.IntType` type.
imm64 = ImmediateType('imm64', 'A 64-bit immediate integer.')
#: A 32-bit immediate floating point operand.
#:
#: IEEE 754-2008 binary32 interchange format.
ieee32 = ImmediateType('ieee32', 'A 32-bit immediate floating point number.')
#: A 64-bit immediate floating point operand.
#:
#: IEEE 754-2008 binary64 interchange format.
ieee64 = ImmediateType('ieee64', 'A 64-bit immediate floating point number.')
#: A large SIMD vector constant.
immvector = ImmediateType('immvector', 'An immediate SIMD vector.')