tree 16e5937e8575799a846e12f7d9e20577098da087
parent 3e0db25721603a0a824a563d70068e7522d806bc
author Mikhail Ablakatov <ablakatov.m@gmail.com> 1647604307 +0300
committer Than McIntosh <thanm@google.com> 1647608419 +0000

gollvm: fix an unary minus operations effect on expressions of complex types

The current implementation translates '-EXPR' into
'ZERO_EXPR - EXPR'. It handles EXPR of floating-point types as a
special case for which ZERO_EXPR is -0.0. This change applies the
same approach to EXPR of complex types so that '-CMPLX_EXPR'
translates into '(-0.0-0.0i) - CMPLX_EXPR' instead of
'(0.0+0.0i) - CMPLX_EXPR'.

Updates golang/go#51648

Change-Id: I66bcfaa9864a83d108c2719fe6dce59975e1c205
Reviewed-on: https://go-review.googlesource.com/c/gollvm/+/393595
Reviewed-by: Than McIntosh <thanm@google.com>
Trust: Bryan Mills <bcmills@google.com>