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llvm-mirror/test/CodeGen/X86/scalar_widen_div.ll

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; RUN: llc < %s -disable-mmx -march=x86-64 -mattr=+sse42 | FileCheck %s
; Verify when widening a divide/remainder operation, we only generate a
; divide/rem per element since divide/remainder can trap.
define void @vectorDiv (<2 x i32> addrspace(1)* %nsource, <2 x i32> addrspace(1)* %dsource, <2 x i32> addrspace(1)* %qdest) nounwind {
; CHECK: idivl
; CHECK: idivl
; CHECK-NOT: idivl
; CHECK: ret
entry:
%nsource.addr = alloca <2 x i32> addrspace(1)*, align 4
%dsource.addr = alloca <2 x i32> addrspace(1)*, align 4
%qdest.addr = alloca <2 x i32> addrspace(1)*, align 4
%index = alloca i32, align 4
store <2 x i32> addrspace(1)* %nsource, <2 x i32> addrspace(1)** %nsource.addr
store <2 x i32> addrspace(1)* %dsource, <2 x i32> addrspace(1)** %dsource.addr
store <2 x i32> addrspace(1)* %qdest, <2 x i32> addrspace(1)** %qdest.addr
%tmp = load <2 x i32> addrspace(1)** %qdest.addr
%tmp1 = load i32* %index
%arrayidx = getelementptr <2 x i32> addrspace(1)* %tmp, i32 %tmp1
%tmp2 = load <2 x i32> addrspace(1)** %nsource.addr
%tmp3 = load i32* %index
%arrayidx4 = getelementptr <2 x i32> addrspace(1)* %tmp2, i32 %tmp3
%tmp5 = load <2 x i32> addrspace(1)* %arrayidx4
%tmp6 = load <2 x i32> addrspace(1)** %dsource.addr
%tmp7 = load i32* %index
%arrayidx8 = getelementptr <2 x i32> addrspace(1)* %tmp6, i32 %tmp7
%tmp9 = load <2 x i32> addrspace(1)* %arrayidx8
%tmp10 = sdiv <2 x i32> %tmp5, %tmp9
store <2 x i32> %tmp10, <2 x i32> addrspace(1)* %arrayidx
ret void
}
define <3 x i8> @test_char_div(<3 x i8> %num, <3 x i8> %div) {
; CHECK: idivb
; CHECK: idivb
; CHECK: idivb
; CHECK-NOT: idivb
; CHECK: ret
%div.r = sdiv <3 x i8> %num, %div
ret <3 x i8> %div.r
}
define <3 x i8> @test_uchar_div(<3 x i8> %num, <3 x i8> %div) {
; CHECK: divb
; CHECK: divb
; CHECK: divb
; CHECK-NOT: divb
; CHECK: ret
%div.r = udiv <3 x i8> %num, %div
ret <3 x i8> %div.r
}
define <5 x i16> @test_short_div(<5 x i16> %num, <5 x i16> %div) {
; CHECK: idivw
; CHECK: idivw
; CHECK: idivw
; CHECK: idivw
; CHECK: idivw
; CHECK-NOT: idivw
; CHECK: ret
%div.r = sdiv <5 x i16> %num, %div
ret <5 x i16> %div.r
}
define <4 x i16> @test_ushort_div(<4 x i16> %num, <4 x i16> %div) {
; CHECK: divw
; CHECK: divw
; CHECK: divw
; CHECK: divw
; CHECK-NOT: divw
; CHECK: ret
%div.r = udiv <4 x i16> %num, %div
ret <4 x i16> %div.r
}
define <3 x i32> @test_uint_div(<3 x i32> %num, <3 x i32> %div) {
; CHECK: divl
; CHECK: divl
; CHECK: divl
; CHECK-NOT: divl
; CHECK: ret
%div.r = udiv <3 x i32> %num, %div
ret <3 x i32> %div.r
}
define <3 x i64> @test_long_div(<3 x i64> %num, <3 x i64> %div) {
; CHECK: idivq
; CHECK: idivq
; CHECK: idivq
; CHECK-NOT: idivq
; CHECK: ret
%div.r = sdiv <3 x i64> %num, %div
ret <3 x i64> %div.r
}
define <3 x i64> @test_ulong_div(<3 x i64> %num, <3 x i64> %div) {
; CHECK: divq
; CHECK: divq
; CHECK: divq
; CHECK-NOT: divq
; CHECK: ret
%div.r = udiv <3 x i64> %num, %div
ret <3 x i64> %div.r
}
define <4 x i8> @test_char_rem(<4 x i8> %num, <4 x i8> %rem) {
; CHECK: idivb
; CHECK: idivb
; CHECK: idivb
; CHECK: idivb
; CHECK-NOT: idivb
; CHECK: ret
%rem.r = srem <4 x i8> %num, %rem
ret <4 x i8> %rem.r
}
define <5 x i16> @test_short_rem(<5 x i16> %num, <5 x i16> %rem) {
; CHECK: idivw
; CHECK: idivw
; CHECK: idivw
; CHECK: idivw
; CHECK: idivw
; CHECK-NOT: idivw
; CHECK: ret
%rem.r = srem <5 x i16> %num, %rem
ret <5 x i16> %rem.r
}
define <4 x i32> @test_uint_rem(<4 x i32> %num, <4 x i32> %rem) {
; CHECK: idivl
; CHECK: idivl
; CHECK: idivl
; CHECK: idivl
; CHECK-NOT: idivl
; CHECK: ret
%rem.r = srem <4 x i32> %num, %rem
ret <4 x i32> %rem.r
}
define <5 x i64> @test_ulong_rem(<5 x i64> %num, <5 x i64> %rem) {
; CHECK: divq
; CHECK: divq
; CHECK: divq
; CHECK: divq
; CHECK: divq
; CHECK-NOT: divq
; CHECK: ret
%rem.r = urem <5 x i64> %num, %rem
ret <5 x i64> %rem.r
}
define void @test_int_div(<3 x i32>* %dest, <3 x i32>* %old, i32 %n) {
; CHECK: idivl
; CHECK: idivl
; CHECK: idivl
; CHECK-NOT: idivl
; CHECK: ret
entry:
%cmp13 = icmp sgt i32 %n, 0
br i1 %cmp13, label %bb.nph, label %for.end
bb.nph:
br label %for.body
for.body:
%i.014 = phi i32 [ 0, %bb.nph ], [ %inc, %for.body ]
%arrayidx11 = getelementptr <3 x i32>* %dest, i32 %i.014
%tmp4 = load <3 x i32>* %arrayidx11 ; <<3 x i32>> [#uses=1]
%arrayidx7 = getelementptr inbounds <3 x i32>* %old, i32 %i.014
%tmp8 = load <3 x i32>* %arrayidx7 ; <<3 x i32>> [#uses=1]
%div = sdiv <3 x i32> %tmp4, %tmp8
store <3 x i32> %div, <3 x i32>* %arrayidx11
%inc = add nsw i32 %i.014, 1
%exitcond = icmp eq i32 %inc, %n
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body, %entry
ret void
}