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Implement ireduce, sextend, and uextend between i8/i16 and i32/i64.

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This commit is contained in:
Dan Gohman
2018-03-05 15:13:59 -08:00
parent b1697dd1dc
commit 136d6f5c4b
3 changed files with 191 additions and 1 deletions
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32
cranelift/filetests/isa/intel/binary32.cton
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@@ -552,3 +552,35 @@ ebb1:
return
}
; Tests for i32/i8 conversion instructions.
function %I32_I8() {
ebb0:
[-,%rcx] v1 = iconst.i32 1
[-,%rcx] v11 = ireduce.i8 v1 ; bin:
; asm: movsbl %cl, %esi
[-,%rsi] v20 = sextend.i32 v11 ; bin: 0f be f1
; asm: movzbl %cl, %esi
[-,%rsi] v30 = uextend.i32 v11 ; bin: 0f b6 f1
trap user0 ; bin: 0f 0b
}
; Tests for i32/i16 conversion instructions.
function %I32_I16() {
ebb0:
[-,%rcx] v1 = iconst.i32 1
[-,%rcx] v11 = ireduce.i16 v1 ; bin:
; asm: movswl %cx, %esi
[-,%rsi] v20 = sextend.i32 v11 ; bin: 0f bf f1
; asm: movzwl %cx, %esi
[-,%rsi] v30 = uextend.i32 v11 ; bin: 0f b7 f1
trap user0 ; bin: 0f 0b
}