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guix: cpu: Refactor cpu->gcc-architecture.

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* guix/cpu.scm (cpu->gcc-architecture): Refactor to wrap all the x86_64
options inside a common letrec-syntax.
This commit is contained in:
Efraim Flashner 2023-06-19 17:02:34 +03:00
parent b93057256f
commit 4dd5fa9e76
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GPG Key ID: 41AAE7DCCA3D8351
1 changed files with 18 additions and 39 deletions
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57
guix/cpu.scm
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@ -114,19 +114,19 @@ corresponds to CPU, a record as returned by 'current-cpu'."
(match (cpu-architecture cpu)
("x86_64"
;; Transcribed from GCC's 'host_detect_local_cpu' in driver-i386.cc.
(or (and (equal? "GenuineIntel" (cpu-vendor cpu))
(= 6 (cpu-family cpu)) ;the "Pentium Pro" family
(letrec-syntax ((if-flags (syntax-rules (=>)
((_)
#f)
((_ (flags ... => name) rest ...)
(if (every (lambda (flag)
(set-contains? (cpu-flags cpu)
flag))
'(flags ...))
name
(if-flags rest ...))))))
(letrec-syntax ((if-flags (syntax-rules (=>)
((_)
#f)
((_ (flags ... => name) rest ...)
(if (every (lambda (flag)
(set-contains? (cpu-flags cpu)
flag))
'(flags ...))
name
(if-flags rest ...))))))
(or (and (equal? "GenuineIntel" (cpu-vendor cpu))
(= 6 (cpu-family cpu)) ;the "Pentium Pro" family
(if-flags ("avx" "raoint" => "grandridge")
("avx" "amx_fp16" => "graniterapids")
("avx" "avxvnniint8" => "sierraforest")
@ -152,20 +152,9 @@ corresponds to CPU, a record as returned by 'current-cpu'."
("ssse3" "movbe" => "bonnell")
("ssse3" => "core2")
("longmode" => "x86-64")
("lm" => "x86-64"))))
(and (equal? "AuthenticAMD" (cpu-vendor cpu))
(letrec-syntax ((if-flags (syntax-rules (=>)
((_)
#f)
((_ (flags ... => name) rest ...)
(if (every (lambda (flag)
(set-contains? (cpu-flags cpu)
flag))
'(flags ...))
name
(if-flags rest ...))))))
("lm" => "x86-64")))
(and (equal? "AuthenticAMD" (cpu-vendor cpu))
(or (and (= 22 (cpu-family cpu))
(if-flags ("movbe" => "btver2")))
(and (= 6 (cpu-family cpu))
@ -192,20 +181,10 @@ corresponds to CPU, a record as returned by 'current-cpu'."
("lm" => "k8")
("mmx" "3dnow" => "k6-3")
("mmx" => "k6")
(_ => "pentium")))))
(_ => "pentium"))))
;; Fallback case for non-Intel processors or for Intel processors not
;; recognized above.
(letrec-syntax ((if-flags (syntax-rules (=>)
((_)
#f)
((_ (flags ... => name) rest ...)
(if (every (lambda (flag)
(set-contains? (cpu-flags cpu)
flag))
'(flags ...))
name
(if-flags rest ...))))))
;; Fallback case for non-Intel processors or for processors not
;; recognized above.
(if (and (= 7 (cpu-family cpu))
(= #x3b (cpu-model cpu)))
"lujiazui"
@ -213,7 +192,7 @@ corresponds to CPU, a record as returned by 'current-cpu'."
;; TODO: Recognize CENTAUR/CYRIX/NSC?
"x86_64"))
"x86_64")))
("aarch64"
;; Transcribed from GCC's list of aarch64 processors in aarch64-cores.def
;; What to do with big.LITTLE cores?