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Begin an Intel-specific instruction group.

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Add instructions representing Intel's division instructions which use a
numerator that is twice as wide as the denominator and produce both the
quotient and remainder.

Add encodings for the x86_[su]divmodx instructions.
This commit is contained in:
Jakob Stoklund Olesen
2017-07-18 10:09:02 -07:00
parent 02fd83cd5c
commit 306ef2095b
8 changed files with 132 additions and 6 deletions
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30
filetests/isa/intel/binary64.cton
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@@ -154,6 +154,21 @@ ebb0:
; asm: imulq %rcx, %r10
[-,%r10] v122 = imul v3, v1 ; bin: 4c 0f af d1
[-,%rax] v130 = iconst.i64 1
[-,%rdx] v131 = iconst.i64 2
; asm: idivq %rcx
[-,%rax,%rdx] v132, v133 = x86_sdivmodx v130, v131, v1 ; bin: 48 f7 f9
; asm: idivq %rsi
[-,%rax,%rdx] v134, v135 = x86_sdivmodx v130, v131, v2 ; bin: 48 f7 fe
; asm: idivq %r10
[-,%rax,%rdx] v136, v137 = x86_sdivmodx v130, v131, v3 ; bin: 49 f7 fa
; asm: divq %rcx
[-,%rax,%rdx] v138, v139 = x86_udivmodx v130, v131, v1 ; bin: 48 f7 f1
; asm: divq %rsi
[-,%rax,%rdx] v140, v141 = x86_udivmodx v130, v131, v2 ; bin: 48 f7 f6
; asm: divq %r10
[-,%rax,%rdx] v142, v143 = x86_udivmodx v130, v131, v3 ; bin: 49 f7 f2
; Bit-counting instructions.
; asm: popcntq %rsi, %rcx
@@ -331,6 +346,21 @@ ebb0:
; asm: imull %ecx, %r10d
[-,%r10] v122 = imul v3, v1 ; bin: 44 0f af d1
[-,%rax] v130 = iconst.i32 1
[-,%rdx] v131 = iconst.i32 2
; asm: idivl %rcx
[-,%rax,%rdx] v132, v133 = x86_sdivmodx v130, v131, v1 ; bin: 40 f7 f9
; asm: idivl %rsi
[-,%rax,%rdx] v134, v135 = x86_sdivmodx v130, v131, v2 ; bin: 40 f7 fe
; asm: idivl %r10d
[-,%rax,%rdx] v136, v137 = x86_sdivmodx v130, v131, v3 ; bin: 41 f7 fa
; asm: divl %rcx
[-,%rax,%rdx] v138, v139 = x86_udivmodx v130, v131, v1 ; bin: 40 f7 f1
; asm: divl %rsi
[-,%rax,%rdx] v140, v141 = x86_udivmodx v130, v131, v2 ; bin: 40 f7 f6
; asm: divl %r10d
[-,%rax,%rdx] v142, v143 = x86_udivmodx v130, v131, v3 ; bin: 41 f7 f2
; Bit-counting instructions.
; asm: popcntl %esi, %ecx