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[PowerPC] Add VSX builtins for vec_div

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This patch adds builtin support for xvdivdp and xvdivsp, along with a
test case.  Straightforward stuff.

There's a companion patch for Clang.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221983 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Schmidt 2014-11-14 12:10:40 +00:00
parent 080c5fe70e
commit 40b0f5d6ce
3 changed files with 40 additions and 2 deletions
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7
include/llvm/IR/IntrinsicsPowerPC.td
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@ -528,14 +528,17 @@ def int_ppc_vsx_stxvw4x :
def int_ppc_vsx_stxvd2x :
Intrinsic<[], [llvm_v2f64_ty, llvm_ptr_ty], [IntrReadWriteArgMem]>;
// Vector maximum.
// Vector and scalar maximum.
def int_ppc_vsx_xvmaxdp : PowerPC_VSX_Vec_DDD_Intrinsic<"xvmaxdp">;
def int_ppc_vsx_xvmaxsp : PowerPC_VSX_Vec_FFF_Intrinsic<"xvmaxsp">;
def int_ppc_vsx_xsmaxdp : PowerPC_VSX_Sca_DDD_Intrinsic<"xsmaxdp">;
// Vector minimum.
// Vector and scalar minimum.
def int_ppc_vsx_xvmindp : PowerPC_VSX_Vec_DDD_Intrinsic<"xvmindp">;
def int_ppc_vsx_xvminsp : PowerPC_VSX_Vec_FFF_Intrinsic<"xvminsp">;
def int_ppc_vsx_xsmindp : PowerPC_VSX_Sca_DDD_Intrinsic<"xsmindp">;
// Vector divide.
def int_ppc_vsx_xvdivdp : PowerPC_VSX_Vec_DDD_Intrinsic<"xvdivdp">;
def int_ppc_vsx_xvdivsp : PowerPC_VSX_Vec_FFF_Intrinsic<"xvdivsp">;
}

6
lib/Target/PowerPC/PPCInstrVSX.td
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@ -887,6 +887,12 @@ def : Pat<(f64 (selectcc i1:$lhs, i1:$rhs, f64:$tval, f64:$fval, SETGT)),
def : Pat<(f64 (selectcc i1:$lhs, i1:$rhs, f64:$tval, f64:$fval, SETNE)),
(SELECT_VSFRC (CRXOR $lhs, $rhs), $tval, $fval)>;
// Divides.
def : Pat<(int_ppc_vsx_xvdivsp v4f32:$A, v4f32:$B),
(XVDIVSP $A, $B)>;
def : Pat<(int_ppc_vsx_xvdivdp v2f64:$A, v2f64:$B),
(XVDIVDP $A, $B)>;
} // AddedComplexity
} // HasVSX

29
test/CodeGen/PowerPC/vsx-div.ll Normal file
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@ -0,0 +1,29 @@
; RUN: llc -mcpu=pwr7 -mattr=+vsx -O1 -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck %s
@vf = global <4 x float> <float -1.500000e+00, float 2.500000e+00, float -3.500000e+00, float 4.500000e+00>, align 16
@vd = global <2 x double> <double 3.500000e+00, double -7.500000e+00>, align 16
@vf_res = common global <4 x float> zeroinitializer, align 16
@vd_res = common global <2 x double> zeroinitializer, align 16
define void @test1() {
entry:
%0 = load <4 x float>* @vf, align 16
%1 = tail call <4 x float> @llvm.ppc.vsx.xvdivsp(<4 x float> %0, <4 x float> %0)
store <4 x float> %1, <4 x float>* @vf_res, align 16
ret void
}
; CHECK-LABEL: @test1
; CHECK: xvdivsp
define void @test2() {
entry:
%0 = load <2 x double>* @vd, align 16
%1 = tail call <2 x double> @llvm.ppc.vsx.xvdivdp(<2 x double> %0, <2 x double> %0)
store <2 x double> %1, <2 x double>* @vd_res, align 16
ret void
}
; CHECK-LABEL: @test2
; CHECK: xvdivdp
declare <2 x double> @llvm.ppc.vsx.xvdivdp(<2 x double>, <2 x double>)
declare <4 x float> @llvm.ppc.vsx.xvdivsp(<4 x float>, <4 x float>)