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; RUN: llc < %s -o - -march=x86 -mattr=+mmx | FileCheck %s
; There are no MMX instructions here. We use add+adcl for the adds.
define <1 x i64> @unsigned_add3(<1 x i64>* %a, <1 x i64>* %b, i32 %count) nounwind {
entry:
%tmp2942 = icmp eq i32 %count, 0 ; <i1> [#uses=1]
br i1 %tmp2942, label %bb31, label %bb26
bb26: ; preds = %bb26, %entry
; CHECK: addl
; CHECK: adcl
%i.037.0 = phi i32 [ 0, %entry ], [ %tmp25, %bb26 ] ; <i32> [#uses=3]
%sum.035.0 = phi <1 x i64> [ zeroinitializer, %entry ], [ %tmp22, %bb26 ] ; <<1 x i64>> [#uses=1]
%tmp13 = getelementptr <1 x i64>* %b, i32 %i.037.0 ; <<1 x i64>*> [#uses=1]
%tmp14 = load <1 x i64>* %tmp13 ; <<1 x i64>> [#uses=1]
%tmp18 = getelementptr <1 x i64>* %a, i32 %i.037.0 ; <<1 x i64>*> [#uses=1]
%tmp19 = load <1 x i64>* %tmp18 ; <<1 x i64>> [#uses=1]
%tmp21 = add <1 x i64> %tmp19, %tmp14 ; <<1 x i64>> [#uses=1]
%tmp22 = add <1 x i64> %tmp21, %sum.035.0 ; <<1 x i64>> [#uses=2]
%tmp25 = add i32 %i.037.0, 1 ; <i32> [#uses=2]
%tmp29 = icmp ult i32 %tmp25, %count ; <i1> [#uses=1]
br i1 %tmp29, label %bb26, label %bb31
bb31: ; preds = %bb26, %entry
%sum.035.1 = phi <1 x i64> [ zeroinitializer, %entry ], [ %tmp22, %bb26 ] ; <<1 x i64>> [#uses=1]
ret <1 x i64> %sum.035.1
}
; This is the original test converted to use MMX intrinsics.
define <1 x i64> @unsigned_add3a(x86_mmx* %a, x86_mmx* %b, i32 %count) nounwind {
entry:
%tmp2943 = bitcast <1 x i64><i64 0> to x86_mmx
%tmp2942 = icmp eq i32 %count, 0 ; <i1> [#uses=1]
br i1 %tmp2942, label %bb31, label %bb26
bb26: ; preds = %bb26, %entry
; CHECK: movq ({{.*}},8), %mm
; CHECK: paddq ({{.*}},8), %mm
; CHECK: paddq %mm{{[0-7]}}, %mm
%i.037.0 = phi i32 [ 0, %entry ], [ %tmp25, %bb26 ] ; <i32> [#uses=3]
%sum.035.0 = phi x86_mmx [ %tmp2943, %entry ], [ %tmp22, %bb26 ] ; <x86_mmx> [#uses=1]
%tmp13 = getelementptr x86_mmx* %b, i32 %i.037.0 ; <x86_mmx*> [#uses=1]
%tmp14 = load x86_mmx* %tmp13 ; <x86_mmx> [#uses=1]
%tmp18 = getelementptr x86_mmx* %a, i32 %i.037.0 ; <x86_mmx*> [#uses=1]
%tmp19 = load x86_mmx* %tmp18 ; <x86_mmx> [#uses=1]
%tmp21 = call x86_mmx @llvm.x86.mmx.padd.q (x86_mmx %tmp19, x86_mmx %tmp14) ; <x86_mmx> [#uses=1]
%tmp22 = call x86_mmx @llvm.x86.mmx.padd.q (x86_mmx %tmp21, x86_mmx %sum.035.0) ; <x86_mmx> [#uses=2]
%tmp25 = add i32 %i.037.0, 1 ; <i32> [#uses=2]
%tmp29 = icmp ult i32 %tmp25, %count ; <i1> [#uses=1]
br i1 %tmp29, label %bb26, label %bb31
bb31: ; preds = %bb26, %entry
%sum.035.1 = phi x86_mmx [ %tmp2943, %entry ], [ %tmp22, %bb26 ] ; <x86_mmx> [#uses=1]
%t = bitcast x86_mmx %sum.035.1 to <1 x i64>
ret <1 x i64> %t
}
declare x86_mmx @llvm.x86.mmx.padd.q(x86_mmx, x86_mmx)
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