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Add Intel encodings for trapif.

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This is implemented as a macro with a conditional jump over a ud2. This
way, we don't have to split up EBBs at every conditional trap.
This commit is contained in:
Jakob Stoklund Olesen
2018-02-08 15:15:15 -08:00
parent 11c721934c
commit 69f70fc61d
5 changed files with 63 additions and 2 deletions
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22
cranelift/filetests/isa/intel/binary32.cton
View File

@@ -512,5 +512,27 @@ ebb1:
; asm: setbe %bl
[-,%rbx] v29 = trueif ule v11 ; bin: 0f 96 c3
; The trapif instructions are encoded as macros: a conditional jump over a ud2.
; asm: jne .+4; ud2
trapif eq v11, user0 ; bin: 75 02 0f 0b
; asm: je .+4; ud2
trapif ne v11, user0 ; bin: 74 02 0f 0b
; asm: jnl .+4; ud2
trapif slt v11, user0 ; bin: 7d 02 0f 0b
; asm: jnge .+4; ud2
trapif sge v11, user0 ; bin: 7c 02 0f 0b
; asm: jng .+4; ud2
trapif sgt v11, user0 ; bin: 7e 02 0f 0b
; asm: jnle .+4; ud2
trapif sle v11, user0 ; bin: 7f 02 0f 0b
; asm: jnb .+4; ud2
trapif ult v11, user0 ; bin: 73 02 0f 0b
; asm: jnae .+4; ud2
trapif uge v11, user0 ; bin: 72 02 0f 0b
; asm: jna .+4; ud2
trapif ugt v11, user0 ; bin: 76 02 0f 0b
; asm: jnbe .+4; ud2
trapif ule v11, user0 ; bin: 77 02 0f 0b
return
}

22
cranelift/filetests/isa/intel/binary64.cton
View File

@@ -593,6 +593,28 @@ ebb1:
; asm: setbe %r11b
[-,%r11] v29 = trueif ule v11 ; bin: 41 0f 96 c3
; The trapif instructions are encoded as macros: a conditional jump over a ud2.
; asm: jne .+4; ud2
trapif eq v11, user0 ; bin: 75 02 0f 0b
; asm: je .+4; ud2
trapif ne v11, user0 ; bin: 74 02 0f 0b
; asm: jnl .+4; ud2
trapif slt v11, user0 ; bin: 7d 02 0f 0b
; asm: jnge .+4; ud2
trapif sge v11, user0 ; bin: 7c 02 0f 0b
; asm: jng .+4; ud2
trapif sgt v11, user0 ; bin: 7e 02 0f 0b
; asm: jnle .+4; ud2
trapif sle v11, user0 ; bin: 7f 02 0f 0b
; asm: jnb .+4; ud2
trapif ult v11, user0 ; bin: 73 02 0f 0b
; asm: jnae .+4; ud2
trapif uge v11, user0 ; bin: 72 02 0f 0b
; asm: jna .+4; ud2
trapif ugt v11, user0 ; bin: 76 02 0f 0b
; asm: jnbe .+4; ud2
trapif ule v11, user0 ; bin: 77 02 0f 0b
return
}