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Add Intel encodings for the bint instructions.

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Convert b1 to i32 or i64 by zero-extending the byte.
This commit is contained in:
Jakob Stoklund Olesen
2017-07-19 12:01:28 -07:00
parent 82fbc78f2f
commit 265bd351bd
4 changed files with 40 additions and 0 deletions
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11
lib/cretonne/meta/isa/intel/encodings.py
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@@ -182,3 +182,14 @@ I32.enc(base.icmp.i32, *r.icscc(0x39))
I64.enc(base.icmp.i64, *r.icscc.rex(0x39, w=1))
I64.enc(base.icmp.i32, *r.icscc.rex(0x39))
I64.enc(base.icmp.i32, *r.icscc(0x39))
#
# Convert bool to int.
#
# This assumes that b1 is represented as an 8-bit low register with the value 0
# or 1.
I32.enc(base.bint.i32.b1, *r.urm_abcd(0x0f, 0xb6))
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))