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| author | Ben Shi <powerman1st@163.com> | 2018-10-15 02:25:10 +0000 |
|---|---|---|
| committer | Cherry Zhang <cherryyz@google.com> | 2018-10-15 02:41:33 +0000 |
| commit | c3208842e138a4dd51499ca84b3bdba99ac4d413 (patch) | |
| tree | cd4c559cef780fd2ea0516514c52f9eef20f5ef1 /test/codegen/arithmetic.go | |
| parent | 389e942745ddd7eef44b71571c463b0dfc3dcac2 (diff) | |
| download | go-c3208842e138a4dd51499ca84b3bdba99ac4d413.tar.xz | |
test/codegen: add tests for multiplication-subtraction
This CL adds tests for armv7's MULS and arm64's MSUBW.
Change-Id: Id0fd5d26fd477e4ed14389b0d33cad930423eb5b
Reviewed-on: https://go-review.googlesource.com/c/141651
Run-TryBot: Ben Shi <powerman1st@163.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Diffstat (limited to 'test/codegen/arithmetic.go')
| -rw-r--r-- | test/codegen/arithmetic.go | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/codegen/arithmetic.go b/test/codegen/arithmetic.go index 879aaf285c..b1cdef6eee 100644 --- a/test/codegen/arithmetic.go +++ b/test/codegen/arithmetic.go @@ -227,3 +227,16 @@ func MULA(a, b, c uint32) (uint32, uint32, uint32) { r2 := b*64 + c return r0, r1, r2 } + +func MULS(a, b, c uint32) (uint32, uint32, uint32) { + // arm/7:`MULS`,-`MUL\s` + // arm64:`MSUBW`,-`MULW` + r0 := c - a*b + // arm/7:`MULS`-`MUL\s` + // arm64:`MSUBW`,-`MULW` + r1 := a - c*79 + // arm/7:`SUB`,-`MULS`-`MUL\s` + // arm64:`SUB`,-`MSUBW`,-`MULW` + r2 := c - b*64 + return r0, r1, r2 +} |