cmd/internal/obj/arm64: golang assembler handles arm64 instruction ldxp incorrectly. #20697
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bradfitz
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NeedsFix
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Did it work in Go 1.8? If no, this is Go 1.10 material. |
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CL https://golang.org/cl/45850 mentions this issue. |
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Go 1.8 still does not work. |
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Please answer these questions before submitting your issue. Thanks!
What version of Go are you using (
go version)?go version devel +59051da Fri Jun 16 06:05:57 2017 +0000 linux/arm64
What operating system and processor architecture are you using (
go env)?GOARCH="arm64"
GOBIN=""
GOEXE=""
GOHOSTARCH="arm64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/fanzha02/go"
GORACE=""
GOROOT="/home/fanzha02/work/asm_test/golang_us/golang_1/golang"
GOTOOLDIR="/home/fanzha02/work/asm_test/golang_us/golang_1/golang/pkg/tool/linux_arm64"
GCCGO="gccgo"
CC="gcc"
GOGCCFLAGS="-fPIC -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build468264647=/tmp/go-build -gno-record-gcc-switches"
CXX="g++"
CGO_ENABLED="1"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
What did you do?
cd src/cmd/asm/internal/asm
add arm64enc.s test file
enable the ARM64Encoder test command
go test -run "ARM64Encoder"
arm64enc.s test file and endtoend_test.go you can load from this patch:
https://go-review.googlesource.com/c/45850/
What did you expect to see?
go test successfully
What did you see instead?
the ldxp/ldxpw test cases are failed
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