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