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Add encodings for CPU flags instructions.

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Branch on flags: brif, brff,
Compare integers to flags: ifcmp
Compare floats to flags: ffcmp
Convert flags to b1: trueif, trueff
This commit is contained in:
Jakob Stoklund Olesen
2017-10-13 16:44:34 -07:00
parent 0f4f663584
commit 5d065c4d8f
7 changed files with 430 additions and 9 deletions
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59
cranelift/filetests/isa/intel/binary32-float.cton
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@@ -220,6 +220,13 @@ ebb0:
; asm: setbe %dl
[-,%rdx] v307 = fcmp ule v11, v10 ; bin: 0f 2e d5 0f 96 c2
; asm: ucomiss %xmm2, %xmm5
[-,%eflags] v310 = ffcmp v10, v11 ; bin: 0f 2e ea
; asm: ucomiss %xmm2, %xmm5
[-,%eflags] v311 = ffcmp v11, v10 ; bin: 0f 2e d5
; asm: ucomiss %xmm5, %xmm5
[-,%eflags] v312 = ffcmp v10, v10 ; bin: 0f 2e ed
return
}
@@ -428,5 +435,57 @@ ebb0:
; asm: setbe %dl
[-,%rdx] v307 = fcmp ule v11, v10 ; bin: 66 0f 2e d5 0f 96 c2
; asm: ucomisd %xmm2, %xmm5
[-,%eflags] v310 = ffcmp v10, v11 ; bin: 66 0f 2e ea
; asm: ucomisd %xmm2, %xmm5
[-,%eflags] v311 = ffcmp v11, v10 ; bin: 66 0f 2e d5
; asm: ucomisd %xmm5, %xmm5
[-,%eflags] v312 = ffcmp v10, v10 ; bin: 66 0f 2e ed
return
}
function %cpuflags_float(f32 [%xmm0]) {
ebb0(v0: f32 [%xmm0]):
; asm: ucomiss %xmm0, %xmm0
[-,%eflags] v1 = ffcmp v0, v0 ; bin: 0f 2e c0
jump ebb1
ebb1:
; asm: jnp ebb1
brff ord v1, ebb1 ; bin: 7b fe
; asm: jp ebb1
brff uno v1, ebb1 ; bin: 7a fc
; asm: jne ebb1
brff one v1, ebb1 ; bin: 75 fa
; asm: je ebb1
brff ueq v1, ebb1 ; bin: 74 f8
; asm: ja ebb1
brff gt v1, ebb1 ; bin: 77 f6
; asm: jae ebb1
brff ge v1, ebb1 ; bin: 73 f4
; asm: jb ebb1
brff ult v1, ebb1 ; bin: 72 f2
; asm: jbe ebb1
brff ule v1, ebb1 ; bin: 76 f0
; asm: setnp %bl
[-,%rbx] v10 = trueff ord v1 ; bin: 0f 9b c3
; asm: setp %bl
[-,%rbx] v11 = trueff uno v1 ; bin: 0f 9a c3
; asm: setne %dl
[-,%rdx] v12 = trueff one v1 ; bin: 0f 95 c2
; asm: sete %dl
[-,%rdx] v13 = trueff ueq v1 ; bin: 0f 94 c2
; asm: seta %al
[-,%rax] v14 = trueff gt v1 ; bin: 0f 97 c0
; asm: setae %al
[-,%rax] v15 = trueff ge v1 ; bin: 0f 93 c0
; asm: setb %cl
[-,%rcx] v16 = trueff ult v1 ; bin: 0f 92 c1
; asm: setbe %cl
[-,%rcx] v17 = trueff ule v1 ; bin: 0f 96 c1
return
}