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llvm-6502/test/CodeGen/AArch64/fp16-instructions.ll
Oliver Stannard 5e487f8dc7 Teach the AArch64 backend about v4f16 and v8f16
This teaches the AArch64 backend to deal with the operations required
to deal with the operations on v4f16 and v8f16 which are exposed by
NEON intrinsics, plus the add, sub, mul and div operations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216555 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-27 16:16:04 +00:00

110 lines
2.1 KiB
LLVM

; RUN: llc < %s -mtriple=aarch64-none-eabi | FileCheck %s
define half @add_h(half %a, half %b) {
entry:
; CHECK-LABEL: add_h:
; CHECK-DAG: fcvt [[OP1:s[0-9]+]], h0
; CHECK-DAG: fcvt [[OP2:s[0-9]+]], h1
; CHECK: fadd [[RES:s[0-9]+]], [[OP1]], [[OP2]]
; CHECK: fcvt h0, [[RES]]
%0 = fadd half %a, %b
ret half %0
}
define half @sub_h(half %a, half %b) {
entry:
; CHECK-LABEL: sub_h:
; CHECK-DAG: fcvt [[OP1:s[0-9]+]], h0
; CHECK-DAG: fcvt [[OP2:s[0-9]+]], h1
; CHECK: fsub [[RES:s[0-9]+]], [[OP1]], [[OP2]]
; CHECK: fcvt h0, [[RES]]
%0 = fsub half %a, %b
ret half %0
}
define half @mul_h(half %a, half %b) {
entry:
; CHECK-LABEL: mul_h:
; CHECK-DAG: fcvt [[OP1:s[0-9]+]], h0
; CHECK-DAG: fcvt [[OP2:s[0-9]+]], h1
; CHECK: fmul [[RES:s[0-9]+]], [[OP1]], [[OP2]]
; CHECK: fcvt h0, [[RES]]
%0 = fmul half %a, %b
ret half %0
}
define half @div_h(half %a, half %b) {
entry:
; CHECK-LABEL: div_h:
; CHECK-DAG: fcvt [[OP1:s[0-9]+]], h0
; CHECK-DAG: fcvt [[OP2:s[0-9]+]], h1
; CHECK: fdiv [[RES:s[0-9]+]], [[OP1]], [[OP2]]
; CHECK: fcvt h0, [[RES]]
%0 = fdiv half %a, %b
ret half %0
}
define half @load_h(half* %a) {
entry:
; CHECK-LABEL: load_h:
; CHECK: ldr h0, [x0]
%0 = load half* %a, align 4
ret half %0
}
define void @store_h(half* %a, half %b) {
entry:
; CHECK-LABEL: store_h:
; CHECK: str h0, [x0]
store half %b, half* %a, align 4
ret void
}
define half @s_to_h(float %a) {
; CHECK-LABEL: s_to_h:
; CHECK: fcvt h0, s0
%1 = fptrunc float %a to half
ret half %1
}
define half @d_to_h(double %a) {
; CHECK-LABEL: d_to_h:
; CHECK: fcvt h0, d0
%1 = fptrunc double %a to half
ret half %1
}
define float @h_to_s(half %a) {
; CHECK-LABEL: h_to_s:
; CHECK: fcvt s0, h0
%1 = fpext half %a to float
ret float %1
}
define double @h_to_d(half %a) {
; CHECK-LABEL: h_to_d:
; CHECK: fcvt d0, h0
%1 = fpext half %a to double
ret double %1
}
define half @bitcast_i_to_h(i16 %a) {
; CHECK-LABEL: bitcast_i_to_h:
; CHECK: fmov s0, w0
%1 = bitcast i16 %a to half
ret half %1
}
define i16 @bitcast_h_to_i(half %a) {
; CHECK-LABEL: bitcast_h_to_i:
; CHECK: fmov w0, s0
%1 = bitcast half %a to i16
ret i16 %1
}