math/big: wrong parameter names for mulAddVWW in loong64 assembly [consistent failure]

[gopherbot]

#!watchflakes
default <- (pkg == "math/big" && test == "" || builder == "gotip-linux-amd64-misccompile" && repo == "go" && mode == "build" && log ~ `loong64`)

Issue created automatically to collect these failures.

Example (log):

FAIL	math/big [build failed]
# math/big
# [math/big]
math/big/arith_loong64.s:85:1: [loong64] mulAddVWW: unknown variable y; offset 48 is m+48(FP)
math/big/arith_loong64.s:86:1: [loong64] mulAddVWW: unknown variable r; offset 56 is a+56(FP)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "math/big" && test == ""

2025-04-15 11:56 gotip-linux-loong64 go@72fa8adb math/big (log)

FAIL	math/big [build failed]
# math/big
# [math/big]
math/big/arith_loong64.s:85:1: [loong64] mulAddVWW: unknown variable y; offset 48 is m+48(FP)
math/big/arith_loong64.s:86:1: [loong64] mulAddVWW: unknown variable r; offset 56 is a+56(FP)

2025-04-15 11:56 gotip-linux-loong64 go@396a48be math/big (log)

FAIL	math/big [build failed]
# math/big
# [math/big]
math/big/arith_loong64.s:112:1: [loong64] mulAddVWW: unknown variable y; offset 48 is m+48(FP)
math/big/arith_loong64.s:113:1: [loong64] mulAddVWW: unknown variable r; offset 56 is a+56(FP)

2025-04-15 18:17 gotip-linux-loong64 go@79b809af math/big (log)

FAIL	math/big [build failed]
# math/big
# [math/big]
math/big/arith_loong64.s:112:1: [loong64] mulAddVWW: unknown variable y; offset 48 is m+48(FP)
math/big/arith_loong64.s:113:1: [loong64] mulAddVWW: unknown variable r; offset 56 is a+56(FP)

2025-04-15 20:05 gotip-linux-loong64 go@fcd73b0a math/big (log)

FAIL	math/big [build failed]
# math/big
# [math/big]
math/big/arith_loong64.s:112:1: [loong64] mulAddVWW: unknown variable y; offset 48 is m+48(FP)
math/big/arith_loong64.s:113:1: [loong64] mulAddVWW: unknown variable r; offset 56 is a+56(FP)

— watchflakes

[randall77]

CL 665575 or CL 665717 both fix this.

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "math/big" && test == ""

2025-04-15 22:43 gotip-linux-loong64 go@64371adc math/big (log)

FAIL	math/big [build failed]
# math/big
# [math/big]
math/big/arith_loong64.s:112:1: [loong64] mulAddVWW: unknown variable y; offset 48 is m+48(FP)
math/big/arith_loong64.s:113:1: [loong64] mulAddVWW: unknown variable r; offset 56 is a+56(FP)

2025-04-15 22:55 gotip-linux-loong64 go@2869d553 math/big (log)

FAIL	math/big [build failed]
# math/big
# [math/big]
math/big/arith_loong64.s:112:1: [loong64] mulAddVWW: unknown variable y; offset 48 is m+48(FP)
math/big/arith_loong64.s:113:1: [loong64] mulAddVWW: unknown variable r; offset 56 is a+56(FP)

— watchflakes

[dmitshur]

Fixed by CL 665717.