llvm/test/CodeGen/Hexagon/opt-fneg.ll
Sirish Pande 7517bbc91a Hexagon V5 FP Support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156568 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-10 20:20:25 +00:00

27 lines
679 B
LLVM

; RUN: llc -march=hexagon -mcpu=hexagonv5 < %s | FileCheck %s
; Optimize fneg to togglebit in V5.
define float @foo(float %x) nounwind {
entry:
; CHECK: r{{[0-9]+}} = togglebit(r{{[0-9]+}}, #31)
%x.addr = alloca float, align 4
store float %x, float* %x.addr, align 4
%0 = load float* %x.addr, align 4
%sub = fsub float -0.000000e+00, %0
ret float %sub
}
define float @bar(float %x) nounwind {
entry:
; CHECK: r{{[0-9]+}} = togglebit(r{{[0-9]+}}, #31)
%sub = fsub float -0.000000e+00, %x
ret float %sub
}
define float @baz(float %x) nounwind {
entry:
; CHECK: r{{[0-9]+}} = togglebit(r{{[0-9]+}}, #31)
%conv1 = fmul float %x, -1.000000e+00
ret float %conv1
}