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x64: port fcmp to ISLE (#3967)

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* x64: port scalar `fcmp` to ISLE

Implement the CLIF lowering for the `fcmp` to ISLE. This adds a new
type-matcher, `ty_scalar_float`, for detecting uses of `F32` and `F64`.

* isle: rename `vec128` to `ty_vec12`

This refactoring changes the name of the `vec128` matcher function to
follow the `ty_*` convention of the other type matchers. It also makes
the helper an inline function call.

* x64: port vector `fcmp` to ISLE
This commit is contained in:
Andrew Brown
2022-03-29 15:41:49 -07:00
committed by GitHub
parent 819b61b661
commit 5d8dd648d7
13 changed files with 746 additions and 400 deletions
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30
cranelift/codegen/src/isa/x64/inst.isle
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@@ -2092,7 +2092,11 @@
imm
size))
;; Helper for creating `cmpps` instructions.
;; Helpers for creating `cmpp*` instructions.
(decl x64_cmpp (Type Xmm XmmMem FcmpImm) Xmm)
(rule (x64_cmpp $F32X4 x y imm) (x64_cmpps x y imm))
(rule (x64_cmpp $F64X2 x y imm) (x64_cmppd x y imm))
(decl x64_cmpps (Xmm XmmMem FcmpImm) Xmm)
(rule (x64_cmpps src1 src2 imm)
(xmm_rm_r_imm (SseOpcode.Cmpps)
@@ -2101,6 +2105,17 @@
(encode_fcmp_imm imm)
(OperandSize.Size32)))
;; Note that `Size32` is intentional despite this being used for 64-bit
;; operations, since this presumably induces the correct encoding of the
;; instruction.
(decl x64_cmppd (Xmm XmmMem FcmpImm) Xmm)
(rule (x64_cmppd src1 src2 imm)
(xmm_rm_r_imm (SseOpcode.Cmppd)
src1
src2
(encode_fcmp_imm imm)
(OperandSize.Size32)))
;; Helper for creating `pinsrb` instructions.
(decl x64_pinsrb (Xmm GprMem u8) Xmm)
(rule (x64_pinsrb src1 src2 lane)
@@ -2321,19 +2336,6 @@
(operand_size_of_type_32_64 (lane_type ty))))))
dst))
;; Helper for creating `cmppd` instructions.
;;
;; Note that `Size32` is intentional despite this being used for 64-bit
;; operations, since this presumably induces the correct encoding of the
;; instruction.
(decl x64_cmppd (Xmm XmmMem FcmpImm) Xmm)
(rule (x64_cmppd src1 src2 imm)
(xmm_rm_r_imm (SseOpcode.Cmppd)
src1
src2
(encode_fcmp_imm imm)
(OperandSize.Size32)))
;; Helper for creating `MInst.GprToXmm` instructions.
(decl gpr_to_xmm (SseOpcode GprMem OperandSize) Xmm)
(rule (gpr_to_xmm op src size)