T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

cranelift/x64: lower min and max for <= i64 (#3748)

Browse Source 
* cranelift/x64: lower min and max for <= `i64`

* cranelift: add runtests for integer min/max
This commit is contained in:
Mrmaxmeier
2022-02-14 19:21:19 +01:00
committed by GitHub
parent da539255a5
commit 84b9c7bb8a
4 changed files with 246 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
cranelift/codegen/src/isa/x64/lower.isle
View File

@@ -1414,7 +1414,31 @@
(rule (vec_insert_lane $F64X2 vec val 1)
(movlhps vec (reg_mem_to_xmm_mem val)))
;;;; Rules for `imax` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;; Rules for `imin`, `imax`, `umin`, `umax` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; `i64` and smaller.
(decl cmp_and_choose (Type CC Value Value) ValueRegs)
(rule (cmp_and_choose (fits_in_64 ty) cc x y)
(let ((x_reg Reg (put_in_reg x))
(y_reg Reg (put_in_reg y))
(size OperandSize (raw_operand_size_of_type ty)))
(value_reg (with_flags_1 (cmp size (RegMemImm.Reg x_reg) y_reg)
(cmove ty cc (RegMem.Reg y_reg) x_reg)))))
(rule (lower (has_type (fits_in_64 ty) (umin x y)))
(cmp_and_choose ty (CC.B) x y))
(rule (lower (has_type (fits_in_64 ty) (umax x y)))
(cmp_and_choose ty (CC.NB) x y))
(rule (lower (has_type (fits_in_64 ty) (imin x y)))
(cmp_and_choose ty (CC.L) x y))
(rule (lower (has_type (fits_in_64 ty) (imax x y)))
(cmp_and_choose ty (CC.NL) x y))
;; SSE `imax`.
(rule (lower (has_type $I8X16 (imax x y)))
(value_xmm (pmaxsb (put_in_xmm x) (put_in_xmm_mem y))))
@@ -1425,7 +1449,7 @@
(rule (lower (has_type $I32X4 (imax x y)))
(value_xmm (pmaxsd (put_in_xmm x) (put_in_xmm_mem y))))
;;;; Rules for `imin` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; SSE `imin`.
(rule (lower (has_type $I8X16 (imin x y)))
(value_xmm (pminsb (put_in_xmm x) (put_in_xmm_mem y))))
@@ -1436,7 +1460,7 @@
(rule (lower (has_type $I32X4 (imin x y)))
(value_xmm (pminsd (put_in_xmm x) (put_in_xmm_mem y))))
;;;; Rules for `umax` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; SSE `umax`.
(rule (lower (has_type $I8X16 (umax x y)))
(value_xmm (pmaxub (put_in_xmm x) (put_in_xmm_mem y))))
@@ -1447,7 +1471,7 @@
(rule (lower (has_type $I32X4 (umax x y)))
(value_xmm (pmaxud (put_in_xmm x) (put_in_xmm_mem y))))
;;;; Rules for `umin` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; SSE `umin`.
(rule (lower (has_type $I8X16 (umin x y)))
(value_xmm (pminub (put_in_xmm x) (put_in_xmm_mem y))))