X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86%2Ffloat.lisp;h=183f97945ad98d8e00554a0dd6d39ded6a0e699d;hb=d25e3478acccec70402ff32554669a982be8e281;hp=621a1cd01256b3c27cc09b48180718fc454f30c2;hpb=0d871fd7a98fc4af92a8b942a1154761466ad8c9;p=sbcl.git diff --git a/src/compiler/x86/float.lisp b/src/compiler/x86/float.lisp index 621a1cd..183f979 100644 --- a/src/compiler/x86/float.lisp +++ b/src/compiler/x86/float.lisp @@ -12,10 +12,7 @@ (in-package "SB!VM") (macrolet ((ea-for-xf-desc (tn slot) - `(make-ea - :dword :base ,tn - :disp (- (* ,slot n-word-bytes) - other-pointer-lowtag)))) + `(make-ea-for-object-slot ,tn ,slot other-pointer-lowtag))) (defun ea-for-sf-desc (tn) (ea-for-xf-desc tn single-float-value-slot)) (defun ea-for-df-desc (tn) @@ -42,9 +39,9 @@ (macrolet ((ea-for-xf-stack (tn kind) `(make-ea :dword :base ebp-tn - :disp (- (* (+ (tn-offset ,tn) - (ecase ,kind (:single 1) (:double 2) (:long 3))) - n-word-bytes))))) + :disp (frame-byte-offset + (+ (tn-offset ,tn) + (ecase ,kind (:single 0) (:double 1) (:long 2))))))) (defun ea-for-sf-stack (tn) (ea-for-xf-stack tn :single)) (defun ea-for-df-stack (tn) @@ -79,13 +76,14 @@ (macrolet ((ea-for-cxf-stack (tn kind slot &optional base) `(make-ea :dword :base ,base - :disp (- (* (+ (tn-offset ,tn) - (* (ecase ,kind - (:single 1) - (:double 2) - (:long 3)) - (ecase ,slot (:real 1) (:imag 2)))) - n-word-bytes))))) + :disp (frame-byte-offset + (+ (tn-offset ,tn) + -1 + (* (ecase ,kind + (:single 1) + (:double 2) + (:long 3)) + (ecase ,slot (:real 1) (:imag 2)))))))) (defun ea-for-csf-real-stack (tn &optional (base ebp-tn)) (ea-for-cxf-stack tn :single :real base)) (defun ea-for-csf-imag-stack (tn &optional (base ebp-tn)) @@ -191,18 +189,23 @@ ((fp-constant) (single-reg double-reg #!+long-float long-reg)) (let ((value (sb!c::constant-value (sb!c::tn-leaf x)))) (with-empty-tn@fp-top(y) - (cond ((zerop value) + (cond ((or (eql value 0f0) (eql value 0d0) #!+long-float (eql value 0l0)) (inst fldz)) ((= value 1e0) (inst fld1)) + #!+long-float ((= value (coerce pi *read-default-float-format*)) (inst fldpi)) + #!+long-float ((= value (log 10e0 2e0)) (inst fldl2t)) + #!+long-float ((= value (log 2.718281828459045235360287471352662e0 2e0)) (inst fldl2e)) + #!+long-float ((= value (log 2e0 10e0)) (inst fldlg2)) + #!+long-float ((= value (log 2e0 2.718281828459045235360287471352662e0)) (inst fldln2)) (t (warn "ignoring bogus i387 constant ~A" value)))))) @@ -613,6 +616,7 @@ (inst fxch x))))) (,stack-sc (if (= (tn-offset fp) esp-offset) + ;; C-call (let* ((offset (* (tn-offset y) n-word-bytes)) (ea (make-ea :dword :base fp :disp offset))) (with-tn@fp-top(x) @@ -621,14 +625,15 @@ (:double '((inst fstd ea))) #!+long-float (:long '((store-long-float ea)))))) + ;; Lisp stack (let ((ea (make-ea :dword :base fp - :disp (- (* (+ (tn-offset y) - ,(case format - (:single 1) - (:double 2) - (:long 3))) - n-word-bytes))))) + :disp (frame-byte-offset + (+ (tn-offset y) + ,(case format + (:single 0) + (:double 1) + (:long 2))))))) (with-tn@fp-top(x) ,@(ecase format (:single '((inst fst ea))) @@ -1182,8 +1187,7 @@ (define-vop (=/float) (:args (x) (y)) (:temporary (:sc word-reg :offset eax-offset :from :eval) temp) - (:conditional) - (:info target not-p) + (:conditional :e) (:policy :fast-safe) (:vop-var vop) (:save-p :compute-only) @@ -1210,8 +1214,7 @@ (inst fxch x))) (inst fnstsw) ; status word to ax (inst and ah-tn #x45) ; C3 C2 C0 - (inst cmp ah-tn #x40) - (inst jmp (if not-p :ne :e) target))) + (inst cmp ah-tn #x40))) (define-vop (=/single-float =/float) (:translate =) @@ -1239,8 +1242,7 @@ (:arg-types single-float single-float) (:temporary (:sc single-reg :offset fr0-offset :from :eval) fr0) (:temporary (:sc word-reg :offset eax-offset :from :eval) temp) - (:conditional) - (:info target not-p) + (:conditional :e) (:policy :fast-safe) (:note "inline float comparison") (:ignore temp) @@ -1280,8 +1282,7 @@ (inst fcom (ea-for-sf-desc y))))) (inst fnstsw) ; status word to ax (inst and ah-tn #x45) ; C3 C2 C0 - (inst cmp ah-tn #x01))) - (inst jmp (if not-p :ne :e) target))) + (inst cmp ah-tn #x01))))) (define-vop (single-float) (:translate >) @@ -1376,8 +1374,7 @@ (:arg-types single-float single-float) (:temporary (:sc single-reg :offset fr0-offset :from :eval) fr0) (:temporary (:sc word-reg :offset eax-offset :from :eval) temp) - (:conditional) - (:info target not-p) + (:conditional :e) (:policy :fast-safe) (:note "inline float comparison") (:ignore temp) @@ -1417,8 +1414,7 @@ (inst fcom (ea-for-sf-stack y)) (inst fcom (ea-for-sf-desc y))))) (inst fnstsw) ; status word to ax - (inst and ah-tn #x45))) - (inst jmp (if not-p :ne :e) target))) + (inst and ah-tn #x45))))) (define-vop (>double-float) (:translate >) @@ -1427,8 +1423,7 @@ (:arg-types double-float double-float) (:temporary (:sc double-reg :offset fr0-offset :from :eval) fr0) (:temporary (:sc word-reg :offset eax-offset :from :eval) temp) - (:conditional) - (:info target not-p) + (:conditional :e) (:policy :fast-safe) (:note "inline float comparison") (:ignore temp) @@ -1468,8 +1463,7 @@ (inst fcomd (ea-for-df-stack y)) (inst fcomd (ea-for-df-desc y))))) (inst fnstsw) ; status word to ax - (inst and ah-tn #x45))) - (inst jmp (if not-p :ne :e) target))) + (inst and ah-tn #x45))))) #!+long-float (define-vop (>long-float) @@ -1478,8 +1472,7 @@ (y :scs (long-reg))) (:arg-types long-float long-float) (:temporary (:sc word-reg :offset eax-offset :from :eval) temp) - (:conditional) - (:info target not-p) + (:conditional :e) (:policy :fast-safe) (:note "inline float comparison") (:ignore temp) @@ -1503,16 +1496,15 @@ (inst fcomd y) (inst fxch x) (inst fnstsw) ; status word to ax - (inst and ah-tn #x45))) - (inst jmp (if not-p :ne :e) target))) + (inst and ah-tn #x45))))) ;;; Comparisons with 0 can use the FTST instruction. (define-vop (float-test) (:args (x)) (:temporary (:sc word-reg :offset eax-offset :from :eval) temp) - (:conditional) - (:info target not-p y) + (:conditional :e) + (:info y) (:variant-vars code) (:policy :fast-safe) (:vop-var vop) @@ -1533,8 +1525,7 @@ (inst fnstsw) ; status word to ax (inst and ah-tn #x45) ; C3 C2 C0 (unless (zerop code) - (inst cmp ah-tn code)) - (inst jmp (if not-p :ne :e) target))) + (inst cmp ah-tn code)))) (define-vop (=0/single-float float-test) (:translate =) @@ -1830,12 +1821,12 @@ (:policy :fast-safe) (:vop-var vop) (:generator 2 - (let ((offset (1+ (tn-offset temp)))) - (storew hi-bits ebp-tn (- offset)) - (storew lo-bits ebp-tn (- (1+ offset))) + (let ((offset (tn-offset temp))) + (storew hi-bits ebp-tn (frame-word-offset offset)) + (storew lo-bits ebp-tn (frame-word-offset (1+ offset))) (with-empty-tn@fp-top(res) (inst fldd (make-ea :dword :base ebp-tn - :disp (- (* (1+ offset) n-word-bytes)))))))) + :disp (frame-byte-offset (1+ offset)))))))) #!+long-float (define-vop (make-long-float) @@ -1850,13 +1841,13 @@ (:policy :fast-safe) (:vop-var vop) (:generator 3 - (let ((offset (1+ (tn-offset temp)))) - (storew exp-bits ebp-tn (- offset)) - (storew hi-bits ebp-tn (- (1+ offset))) - (storew lo-bits ebp-tn (- (+ offset 2))) + (let ((offset (tn-offset temp))) + (storew exp-bits ebp-tn (frame-word-offset offset)) + (storew hi-bits ebp-tn (frame-word-offset (1+ offset))) + (storew lo-bits ebp-tn (frame-word-offset (+ offset 2))) (with-empty-tn@fp-top(res) (inst fldl (make-ea :dword :base ebp-tn - :disp (- (* (+ offset 2) n-word-bytes)))))))) + :disp (frame-byte-offset (+ offset 2)))))))) (define-vop (single-float-bits) (:args (float :scs (single-reg descriptor-reg) @@ -1903,12 +1894,11 @@ (double-reg (with-tn@fp-top(float) (let ((where (make-ea :dword :base ebp-tn - :disp (- (* (+ 2 (tn-offset temp)) - n-word-bytes))))) + :disp (frame-byte-offset (1+ (tn-offset temp)))))) (inst fstd where))) - (loadw hi-bits ebp-tn (- (1+ (tn-offset temp))))) + (loadw hi-bits ebp-tn (frame-word-offset (tn-offset temp)))) (double-stack - (loadw hi-bits ebp-tn (- (1+ (tn-offset float))))) + (loadw hi-bits ebp-tn (frame-word-offset (tn-offset float)))) (descriptor-reg (loadw hi-bits float (1+ double-float-value-slot) other-pointer-lowtag))))) @@ -1928,12 +1918,11 @@ (double-reg (with-tn@fp-top(float) (let ((where (make-ea :dword :base ebp-tn - :disp (- (* (+ 2 (tn-offset temp)) - n-word-bytes))))) + :disp (frame-byte-offset (1+ (tn-offset temp)))))) (inst fstd where))) - (loadw lo-bits ebp-tn (- (+ 2 (tn-offset temp))))) + (loadw lo-bits ebp-tn (frame-word-offset (1+ (tn-offset temp))))) (double-stack - (loadw lo-bits ebp-tn (- (+ 2 (tn-offset float))))) + (loadw lo-bits ebp-tn (frame-word-offset (1+ (tn-offset float))))) (descriptor-reg (loadw lo-bits float double-float-value-slot other-pointer-lowtag))))) @@ -1954,22 +1943,19 @@ (long-reg (with-tn@fp-top(float) (let ((where (make-ea :dword :base ebp-tn - :disp (- (* (+ 3 (tn-offset temp)) - n-word-bytes))))) + :disp (frame-byte-offset (+ 2 (tn-offset temp)))))) (store-long-float where))) (inst movsx exp-bits (make-ea :word :base ebp-tn - :disp (* (- (1+ (tn-offset temp))) n-word-bytes)))) + :disp (frame-byte-offset (tn-offset temp))))) (long-stack (inst movsx exp-bits (make-ea :word :base ebp-tn - :disp (* (- (1+ (tn-offset float))) n-word-bytes)))) + :disp (frame-byte-offset (tn-offset temp))))) (descriptor-reg (inst movsx exp-bits - (make-ea :word :base float - :disp (- (* (+ 2 long-float-value-slot) - n-word-bytes) - other-pointer-lowtag))))))) + (make-ea-for-object-slot float (+ 2 long-float-value-slot) + other-pointer-lowtag :word)))))) #!+long-float (define-vop (long-float-high-bits) @@ -1987,12 +1973,11 @@ (long-reg (with-tn@fp-top(float) (let ((where (make-ea :dword :base ebp-tn - :disp (- (* (+ 3 (tn-offset temp)) - n-word-bytes))))) + :disp (frame-byte-offset (+ 2 (tn-offset temp)))))) (store-long-float where))) - (loadw hi-bits ebp-tn (- (+ (tn-offset temp) 2)))) + (loadw hi-bits ebp-tn (frame-word-offset (1+ (tn-offset temp))))) (long-stack - (loadw hi-bits ebp-tn (- (+ (tn-offset float) 2)))) + (loadw hi-bits ebp-tn (frame-word-offset (1+ (tn-offset temp))))) (descriptor-reg (loadw hi-bits float (1+ long-float-value-slot) other-pointer-lowtag))))) @@ -2013,12 +1998,11 @@ (long-reg (with-tn@fp-top(float) (let ((where (make-ea :dword :base ebp-tn - :disp (- (* (+ 3 (tn-offset temp)) - n-word-bytes))))) + :disp (frame-byte-offset (+ 2 (tn-offset temp)))))) (store-long-float where))) - (loadw lo-bits ebp-tn (- (+ (tn-offset temp) 3)))) + (loadw lo-bits ebp-tn (frame-word-offset (+ (tn-offset temp) 2)))) (long-stack - (loadw lo-bits ebp-tn (- (+ (tn-offset float) 3)))) + (loadw lo-bits ebp-tn (frame-word-offset (+ (tn-offset float) 2)))) (descriptor-reg (loadw lo-bits float long-float-value-slot other-pointer-lowtag)))))