forked from OSchip/llvm-project
85 lines
3.6 KiB
LLVM
85 lines
3.6 KiB
LLVM
; RUN: opt -mtriple=thumbv7-unknown-linux-android -arm-parallel-dsp -S %s -o - | FileCheck %s
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; CHECK-LABEL: undef_no_return
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; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %incdec.ptr21 to i32*
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; CHECK: [[LOAD_A:%[^ ]+]] = load i32, i32* [[CAST_A]], align 2
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; CHECK: %uglygep15 = getelementptr i8, i8* undef, i32 undef
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; CHECK: [[GEP8:%[^ ]+]] = getelementptr i8, i8* undef, i32 undef
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; CHECK: [[CAST_GEP8:%[^ ]+]] = bitcast i8* [[GEP8]] to i16*
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; CHECK: [[GEP16:%[^ ]+]] = getelementptr i16, i16* [[CAST_GEP8]], i32 6
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; CHECK: [[CAST_GEP16:%[^ ]+]] = bitcast i16* [[GEP16]] to i32*
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; CHECK: [[LOAD_UNDEF:%[^ ]+]] = load i32, i32* [[CAST_GEP16]], align 2
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; CHECK: call i32 @llvm.arm.smladx(i32 [[LOAD_UNDEF]], i32 [[LOAD_A]], i32 undef)
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define void @undef_no_return(i16* %a) {
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entry:
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%incdec.ptr21 = getelementptr inbounds i16, i16* %a, i32 3
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%incdec.ptr29 = getelementptr inbounds i16, i16* %a, i32 4
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br label %for.body
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for.body:
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%0 = load i16, i16* %incdec.ptr21, align 2
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%conv25 = sext i16 %0 to i32
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%uglygep15 = getelementptr i8, i8* undef, i32 undef
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%uglygep1516 = bitcast i8* %uglygep15 to i16*
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%scevgep17 = getelementptr i16, i16* %uglygep1516, i32 7
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%1 = load i16, i16* %scevgep17, align 2
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%conv31 = sext i16 %1 to i32
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%2 = load i16, i16* %incdec.ptr29, align 2
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%conv33 = sext i16 %2 to i32
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%uglygep12 = getelementptr i8, i8* undef, i32 undef
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%uglygep1213 = bitcast i8* %uglygep12 to i16*
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%scevgep14 = getelementptr i16, i16* %uglygep1213, i32 6
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%3 = load i16, i16* %scevgep14, align 2
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%conv39 = sext i16 %3 to i32
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%mul.i287.neg.neg = mul nsw i32 %conv31, %conv25
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%mul.i283.neg.neg = mul nsw i32 %conv39, %conv33
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%reass.add408 = add i32 undef, %mul.i287.neg.neg
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%reass.add409 = add i32 %reass.add408, %mul.i283.neg.neg
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br label %for.body
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}
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; CHECK-LABEL: return
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; CHECK: phi i32 [ %N, %entry ]
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; CHECK: [[ACC:%[^ ]+]] = phi i32 [ 0, %entry ], [ [[ACC_NEXT:%[^ ]+]], %for.body ]
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; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %incdec.ptr21 to i32*
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; CHECK: [[LOAD_A:%[^ ]+]] = load i32, i32* [[CAST_A]], align 2
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; CHECK: [[GEP8:%[^ ]+]] = getelementptr i8, i8* %b, i32 0
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; CHECK: [[CAST_GEP8:%[^ ]+]] = bitcast i8* [[GEP8]] to i16*
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; CHECK: [[GEP16:%[^ ]+]] = getelementptr i16, i16* [[CAST_GEP8]], i32 %iv
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; CHECK: [[CAST_GEP16:%[^ ]+]] = bitcast i16* [[GEP16]] to i32*
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; CHECK: [[LOAD_B:%[^ ]+]] = load i32, i32* [[CAST_GEP16]], align 2
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; CHECK: [[ACC_NEXT]] = call i32 @llvm.arm.smladx(i32 [[LOAD_B]], i32 [[LOAD_A]], i32 [[ACC]])
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define i32 @return(i16* %a, i8* %b, i32 %N) {
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entry:
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%incdec.ptr21 = getelementptr inbounds i16, i16* %a, i32 3
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%incdec.ptr29 = getelementptr inbounds i16, i16* %a, i32 4
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br label %for.body
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for.body:
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%iv = phi i32 [ %N, %entry ], [ %iv.next, %for.body ]
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%acc = phi i32 [ 0, %entry ], [ %reass.add409, %for.body ]
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%0 = load i16, i16* %incdec.ptr21, align 2
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%conv25 = sext i16 %0 to i32
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%uglygep15 = getelementptr i8, i8* %b, i32 0
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%uglygep1516 = bitcast i8* %uglygep15 to i16*
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%b.idx = add nuw nsw i32 %iv, 1
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%scevgep17 = getelementptr i16, i16* %uglygep1516, i32 %b.idx
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%scevgep14 = getelementptr i16, i16* %uglygep1516, i32 %iv
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%1 = load i16, i16* %scevgep17, align 2
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%conv31 = sext i16 %1 to i32
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%2 = load i16, i16* %incdec.ptr29, align 2
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%conv33 = sext i16 %2 to i32
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%3 = load i16, i16* %scevgep14, align 2
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%conv39 = sext i16 %3 to i32
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%mul.i287.neg.neg = mul nsw i32 %conv31, %conv25
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%mul.i283.neg.neg = mul nsw i32 %conv39, %conv33
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%reass.add408 = add i32 %acc, %mul.i287.neg.neg
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%reass.add409 = add i32 %reass.add408, %mul.i283.neg.neg
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%iv.next = add nuw nsw i32 %iv, -1
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%cmp = icmp ne i32 %iv.next, 0
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br i1 %cmp, label %for.body, label %exit
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exit:
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ret i32 %reass.add409
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}
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