derek.holloway
7502bf64a4
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123 lines
9.3 KiB
LLVM
123 lines
9.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --filter-out-after "^scalar.ph:" --version 6
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; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=8 -scalable-vectorization=on \
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; RUN: -force-target-supports-masked-memory-ops -force-target-supports-scalable-vectors \
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; RUN: -enable-interleaved-mem-accesses -enable-masked-interleaved-mem-accesses -force-target-supports-gather-scatter-ops \
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; RUN: -S < %s | FileCheck %s --check-prefix=CHECK-GATHER-ENABLED
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; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=8 -scalable-vectorization=on \
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; RUN: -force-target-supports-masked-memory-ops -force-target-supports-scalable-vectors \
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; RUN: -enable-interleaved-mem-accesses -enable-masked-interleaved-mem-accesses \
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; RUN: -S < %s | FileCheck %s --check-prefix=CHECK-GATHER-DISABLED
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; Test whether the legality of gather/scatter has an impact on if-conversion
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; for scalable VFs. In either case, the example below should be vectorized with
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; VF = vscale x 8 and a masked deinterleaved load.
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; Loop with two conditional (interleaved) loads.
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define void @conv_interleaved_loads_load(ptr noalias %a, ptr readonly %b, ptr readonly %c, ptr readonly %flags, i64 %cond) {
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; CHECK-GATHER-ENABLED-LABEL: define void @conv_interleaved_loads_load(
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; CHECK-GATHER-ENABLED-SAME: ptr noalias [[A:%.*]], ptr readonly [[B:%.*]], ptr readonly [[C:%.*]], ptr readonly [[FLAGS:%.*]], i64 [[COND:%.*]]) {
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; CHECK-GATHER-ENABLED-NEXT: [[ENTRY:.*:]]
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; CHECK-GATHER-ENABLED-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
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; CHECK-GATHER-ENABLED-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 3
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; CHECK-GATHER-ENABLED-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
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; CHECK-GATHER-ENABLED-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
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; CHECK-GATHER-ENABLED: [[VECTOR_PH]]:
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; CHECK-GATHER-ENABLED-NEXT: [[TMP3:%.*]] = shl nuw i64 [[TMP0]], 3
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; CHECK-GATHER-ENABLED-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
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; CHECK-GATHER-ENABLED-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
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; CHECK-GATHER-ENABLED-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 8 x i64> poison, i64 [[COND]], i64 0
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; CHECK-GATHER-ENABLED-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 8 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 8 x i64> poison, <vscale x 8 x i32> zeroinitializer
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; CHECK-GATHER-ENABLED-NEXT: br label %[[VECTOR_BODY:.*]]
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; CHECK-GATHER-ENABLED: [[VECTOR_BODY]]:
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; CHECK-GATHER-ENABLED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; CHECK-GATHER-ENABLED-NEXT: [[TMP4:%.*]] = getelementptr inbounds i16, ptr [[B]], i64 [[INDEX]]
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; CHECK-GATHER-ENABLED-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x i16>, ptr [[TMP4]], align 2
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; CHECK-GATHER-ENABLED-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[FLAGS]], i64 [[INDEX]]
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; CHECK-GATHER-ENABLED-NEXT: [[WIDE_LOAD1:%.*]] = load <vscale x 8 x i64>, ptr [[TMP5]], align 8
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; CHECK-GATHER-ENABLED-NEXT: [[TMP6:%.*]] = icmp ne <vscale x 8 x i64> [[WIDE_LOAD1]], [[BROADCAST_SPLAT]]
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; CHECK-GATHER-ENABLED-NEXT: [[TMP7:%.*]] = getelementptr [2 x i16], ptr [[C]], i64 [[INDEX]], i64 0
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; CHECK-GATHER-ENABLED-NEXT: [[INTERLEAVED_MASK:%.*]] = call <vscale x 16 x i1> @llvm.vector.interleave2.nxv16i1(<vscale x 8 x i1> [[TMP6]], <vscale x 8 x i1> [[TMP6]])
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; CHECK-GATHER-ENABLED-NEXT: [[WIDE_MASKED_VEC:%.*]] = call <vscale x 16 x i16> @llvm.masked.load.nxv16i16.p0(ptr align 2 [[TMP7]], <vscale x 16 x i1> [[INTERLEAVED_MASK]], <vscale x 16 x i16> poison)
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; CHECK-GATHER-ENABLED-NEXT: [[STRIDED_VEC:%.*]] = call { <vscale x 8 x i16>, <vscale x 8 x i16> } @llvm.vector.deinterleave2.nxv16i16(<vscale x 16 x i16> [[WIDE_MASKED_VEC]])
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; CHECK-GATHER-ENABLED-NEXT: [[TMP8:%.*]] = extractvalue { <vscale x 8 x i16>, <vscale x 8 x i16> } [[STRIDED_VEC]], 0
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; CHECK-GATHER-ENABLED-NEXT: [[TMP9:%.*]] = extractvalue { <vscale x 8 x i16>, <vscale x 8 x i16> } [[STRIDED_VEC]], 1
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; CHECK-GATHER-ENABLED-NEXT: [[TMP10:%.*]] = add <vscale x 8 x i16> [[TMP8]], [[TMP9]]
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; CHECK-GATHER-ENABLED-NEXT: [[PREDPHI:%.*]] = select <vscale x 8 x i1> [[TMP6]], <vscale x 8 x i16> [[TMP10]], <vscale x 8 x i16> zeroinitializer
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; CHECK-GATHER-ENABLED-NEXT: [[TMP11:%.*]] = add <vscale x 8 x i16> [[WIDE_LOAD]], [[PREDPHI]]
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; CHECK-GATHER-ENABLED-NEXT: [[TMP12:%.*]] = getelementptr inbounds i16, ptr [[A]], i64 [[INDEX]]
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; CHECK-GATHER-ENABLED-NEXT: store <vscale x 8 x i16> [[TMP11]], ptr [[TMP12]], align 2
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; CHECK-GATHER-ENABLED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]]
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; CHECK-GATHER-ENABLED-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
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; CHECK-GATHER-ENABLED-NEXT: br i1 [[TMP13]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; CHECK-GATHER-ENABLED: [[MIDDLE_BLOCK]]:
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; CHECK-GATHER-ENABLED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
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; CHECK-GATHER-ENABLED-NEXT: br i1 [[CMP_N]], [[EXIT:label %.*]], label %[[SCALAR_PH]]
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; CHECK-GATHER-ENABLED: [[SCALAR_PH]]:
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;
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; CHECK-GATHER-DISABLED-LABEL: define void @conv_interleaved_loads_load(
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; CHECK-GATHER-DISABLED-SAME: ptr noalias [[A:%.*]], ptr readonly [[B:%.*]], ptr readonly [[C:%.*]], ptr readonly [[FLAGS:%.*]], i64 [[COND:%.*]]) {
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; CHECK-GATHER-DISABLED-NEXT: [[ENTRY:.*:]]
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; CHECK-GATHER-DISABLED-NEXT: br label %[[VECTOR_PH:.*]]
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; CHECK-GATHER-DISABLED: [[VECTOR_PH]]:
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; CHECK-GATHER-DISABLED-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x i64> poison, i64 [[COND]], i64 0
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; CHECK-GATHER-DISABLED-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i64> [[BROADCAST_SPLATINSERT]], <8 x i64> poison, <8 x i32> zeroinitializer
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; CHECK-GATHER-DISABLED-NEXT: br label %[[VECTOR_BODY:.*]]
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; CHECK-GATHER-DISABLED: [[VECTOR_BODY]]:
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; CHECK-GATHER-DISABLED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; CHECK-GATHER-DISABLED-NEXT: [[TMP0:%.*]] = getelementptr inbounds i16, ptr [[B]], i64 [[INDEX]]
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; CHECK-GATHER-DISABLED-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i16>, ptr [[TMP0]], align 2
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; CHECK-GATHER-DISABLED-NEXT: [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[FLAGS]], i64 [[INDEX]]
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; CHECK-GATHER-DISABLED-NEXT: [[WIDE_LOAD1:%.*]] = load <8 x i64>, ptr [[TMP1]], align 8
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; CHECK-GATHER-DISABLED-NEXT: [[TMP2:%.*]] = icmp ne <8 x i64> [[WIDE_LOAD1]], [[BROADCAST_SPLAT]]
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; CHECK-GATHER-DISABLED-NEXT: [[TMP3:%.*]] = getelementptr [2 x i16], ptr [[C]], i64 [[INDEX]], i64 0
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; CHECK-GATHER-DISABLED-NEXT: [[INTERLEAVED_MASK:%.*]] = shufflevector <8 x i1> [[TMP2]], <8 x i1> poison, <16 x i32> <i32 0, i32 0, i32 1, i32 1, i32 2, i32 2, i32 3, i32 3, i32 4, i32 4, i32 5, i32 5, i32 6, i32 6, i32 7, i32 7>
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; CHECK-GATHER-DISABLED-NEXT: [[WIDE_MASKED_VEC:%.*]] = call <16 x i16> @llvm.masked.load.v16i16.p0(ptr align 2 [[TMP3]], <16 x i1> [[INTERLEAVED_MASK]], <16 x i16> poison)
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; CHECK-GATHER-DISABLED-NEXT: [[STRIDED_VEC:%.*]] = shufflevector <16 x i16> [[WIDE_MASKED_VEC]], <16 x i16> poison, <8 x i32> <i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 12, i32 14>
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; CHECK-GATHER-DISABLED-NEXT: [[STRIDED_VEC2:%.*]] = shufflevector <16 x i16> [[WIDE_MASKED_VEC]], <16 x i16> poison, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15>
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; CHECK-GATHER-DISABLED-NEXT: [[TMP4:%.*]] = add <8 x i16> [[STRIDED_VEC]], [[STRIDED_VEC2]]
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; CHECK-GATHER-DISABLED-NEXT: [[PREDPHI:%.*]] = select <8 x i1> [[TMP2]], <8 x i16> [[TMP4]], <8 x i16> zeroinitializer
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; CHECK-GATHER-DISABLED-NEXT: [[TMP5:%.*]] = add <8 x i16> [[WIDE_LOAD]], [[PREDPHI]]
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; CHECK-GATHER-DISABLED-NEXT: [[TMP6:%.*]] = getelementptr inbounds i16, ptr [[A]], i64 [[INDEX]]
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; CHECK-GATHER-DISABLED-NEXT: store <8 x i16> [[TMP5]], ptr [[TMP6]], align 2
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; CHECK-GATHER-DISABLED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
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; CHECK-GATHER-DISABLED-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
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; CHECK-GATHER-DISABLED-NEXT: br i1 [[TMP7]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; CHECK-GATHER-DISABLED: [[MIDDLE_BLOCK]]:
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; CHECK-GATHER-DISABLED-NEXT: br label %[[EXIT:.*]]
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; CHECK-GATHER-DISABLED: [[EXIT]]:
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; CHECK-GATHER-DISABLED-NEXT: ret void
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;
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entry:
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br label %for.body
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for.body:
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.inc ]
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%arrayidx0 = getelementptr inbounds i16, ptr %b, i64 %iv
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%0 = load i16, ptr %arrayidx0, align 2
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%flagidx = getelementptr inbounds i64, ptr %flags, i64 %iv
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%val.for.cmp = load i64, ptr %flagidx, align 8
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%do.access = icmp ne i64 %val.for.cmp, %cond
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br i1 %do.access, label %if.then, label %for.inc
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if.then:
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%arrayidx1 = getelementptr inbounds [2 x i16], ptr %c, i64 %iv, i64 0
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%cond.load.1 = load i16, ptr %arrayidx1, align 2
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%arrayidx2 = getelementptr inbounds [2 x i16], ptr %c, i64 %iv, i64 1
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%cond.load.2 = load i16, ptr %arrayidx2, align 2
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%cond.loads.sum = add i16 %cond.load.1, %cond.load.2
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br label %for.inc
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for.inc:
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%1 = phi i16 [ zeroinitializer, %for.body ], [ %cond.loads.sum, %if.then ]
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%result = add i16 %0, %1
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%arrayidx3 = getelementptr inbounds i16, ptr %a, i64 %iv
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store i16 %result, ptr %arrayidx3, align 2
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond.not = icmp eq i64 %iv.next, 1024
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br i1 %exitcond.not, label %exit, label %for.body
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exit:
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ret void
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}
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