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Add a null encoding for ireduce.i32.i64.

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This conversion doesn't require any code, we're just looking at the bits
differently.
This commit is contained in:
Jakob Stoklund Olesen
2017-07-19 13:11:11 -07:00
parent f03f1e1898
commit 9f105145af
3 changed files with 20 additions and 0 deletions
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5
lib/cretonne/meta/isa/intel/encodings.py
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@@ -193,3 +193,8 @@ I64.enc(base.bint.i64.b1, *r.urm.rex(0x0f, 0xb6, w=1))
I64.enc(base.bint.i64.b1, *r.urm_abcd(0x0f, 0xb6)) # zext to i64 implicit.
I64.enc(base.bint.i32.b1, *r.urm.rex(0x0f, 0xb6))
I64.enc(base.bint.i32.b1, *r.urm_abcd(0x0f, 0xb6))
# Numerical conversions.
# Converting i64 to i32 is a no-op in 64-bit mode.
I64.enc(base.ireduce.i32.i64, r.null, 0)