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Add a trapff instruction.

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This is the floating point equivalent of trapif: Trap when a given
condition is in the floating-point flags.

Define Intel encodings comparable to the trapif encodings.
This commit is contained in:
Jakob Stoklund Olesen
2018-02-20 14:35:41 -08:00
parent 1e56d44465
commit b9b1d0fcd5
12 changed files with 91 additions and 1 deletions
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1
cranelift/docs/langref.rst
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@@ -381,6 +381,7 @@ is zero.
.. autoinst:: trapz
.. autoinst:: trapnz
.. autoinst:: trapif
.. autoinst:: trapff
Function calls

17
cranelift/filetests/isa/intel/binary32-float.cton
View File

@@ -470,6 +470,23 @@ ebb1:
; asm: jbe ebb1
brff ule v1, ebb1 ; bin: 76 f0
; asm: jp .+4; ud2
trapff ord v1, user0 ; bin: 7a 02 0f 0b
; asm: jnp .+4; ud2
trapff uno v1, user0 ; bin: 7b 02 0f 0b
; asm: je .+4; ud2
trapff one v1, user0 ; bin: 74 02 0f 0b
; asm: jne .+4; ud2
trapff ueq v1, user0 ; bin: 75 02 0f 0b
; asm: jna .+4; ud2
trapff gt v1, user0 ; bin: 76 02 0f 0b
; asm: jnae .+4; ud2
trapff ge v1, user0 ; bin: 72 02 0f 0b
; asm: jnb .+4; ud2
trapff ult v1, user0 ; bin: 73 02 0f 0b
; asm: jnbe .+4; ud2
trapff ule v1, user0 ; bin: 77 02 0f 0b
; asm: setnp %bl
[-,%rbx] v10 = trueff ord v1 ; bin: 0f 9b c3
; asm: setp %bl

17
cranelift/filetests/isa/intel/binary64-float.cton
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@@ -494,6 +494,23 @@ ebb1:
; asm: jbe ebb1
brff ule v1, ebb1 ; bin: 76 f0
; asm: jp .+4; ud2
trapff ord v1, user0 ; bin: 7a 02 0f 0b
; asm: jnp .+4; ud2
trapff uno v1, user0 ; bin: 7b 02 0f 0b
; asm: je .+4; ud2
trapff one v1, user0 ; bin: 74 02 0f 0b
; asm: jne .+4; ud2
trapff ueq v1, user0 ; bin: 75 02 0f 0b
; asm: jna .+4; ud2
trapff gt v1, user0 ; bin: 76 02 0f 0b
; asm: jnae .+4; ud2
trapff ge v1, user0 ; bin: 72 02 0f 0b
; asm: jnb .+4; ud2
trapff ult v1, user0 ; bin: 73 02 0f 0b
; asm: jnbe .+4; ud2
trapff ule v1, user0 ; bin: 77 02 0f 0b
; asm: setnp %bl
[-,%rbx] v10 = trueff ord v1 ; bin: 0f 9b c3
; asm: setp %bl

6
cranelift/filetests/parser/tiny.cton
View File

@@ -216,6 +216,9 @@ ebb0(v0: i32):
trapz v0, stk_ovf
v1 = ifcmp_imm v0, 5
trapif ugt v1, oob
v2 = bitcast.f32 v1
v3 = ffcmp v2, v2
trapff uno v3, int_ovf
return
}
; sameln: function %cond_traps(i32)
@@ -223,5 +226,8 @@ ebb0(v0: i32):
; nextln: trapz $v0, stk_ovf
; nextln: $v1 = ifcmp_imm v0, 5
; nextln: trapif ugt $v1, oob
; nextln: $v2 = bitcast.f32 $v1
; nextln: $v3 = ffcmp $v2, $v2
; nextln: trapff uno $v3, int_ovf
; nextln: return
; nextln: }