; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s -loop-vectorize -dce -instcombine -S | FileCheck -check-prefix=GFX9 %s
; RUN: opt -mtriple=amdgcn-amd-amdhsa -mcpu=fiji < %s -loop-vectorize -dce -instcombine -S | FileCheck -check-prefix=VI %s
; RUN: opt -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii < %s -loop-vectorize -dce -instcombine -S | FileCheck -check-prefix=CI %s
define half @vectorize_v2f16_loop(half addrspace(1)* noalias %s) {
; GFX9-LABEL: @vectorize_v2f16_loop(
; GFX9-NEXT: entry:
; GFX9-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; GFX9: vector.ph:
; GFX9-NEXT: br label [[VECTOR_BODY:%.*]]
; GFX9: vector.body:
; GFX9-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; GFX9-NEXT: [[VEC_PHI:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP4:%.*]], [[VECTOR_BODY]] ]
; GFX9-NEXT: [[VEC_PHI1:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP5:%.*]], [[VECTOR_BODY]] ]
; GFX9-NEXT: [[TMP0:%.*]] = getelementptr inbounds half, half addrspace(1)* [[S:%.*]], i64 [[INDEX]]
; GFX9-NEXT: [[TMP1:%.*]] = bitcast half addrspace(1)* [[TMP0]] to <2 x half> addrspace(1)*
; GFX9-NEXT: [[WIDE_LOAD:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP1]], align 2
; GFX9-NEXT: [[TMP2:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 2
; GFX9-NEXT: [[TMP3:%.*]] = bitcast half addrspace(1)* [[TMP2]] to <2 x half> addrspace(1)*
; GFX9-NEXT: [[WIDE_LOAD2:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP3]], align 2
; GFX9-NEXT: [[TMP4]] = fadd fast <2 x half> [[VEC_PHI]], [[WIDE_LOAD]]
; GFX9-NEXT: [[TMP5]] = fadd fast <2 x half> [[VEC_PHI1]], [[WIDE_LOAD2]]
; GFX9-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; GFX9-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 256
; GFX9-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; GFX9: middle.block:
; GFX9-NEXT: [[BIN_RDX:%.*]] = fadd fast <2 x half> [[TMP5]], [[TMP4]]
; GFX9-NEXT: [[TMP7:%.*]] = call fast half @llvm.vector.reduce.fadd.v2f16(half 0xH8000, <2 x half> [[BIN_RDX]])
; GFX9-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
; GFX9: scalar.ph:
; GFX9-NEXT: br label [[FOR_BODY:%.*]]
; GFX9: for.body:
; GFX9-NEXT: br i1 poison, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]]
; GFX9: for.end:
; GFX9-NEXT: [[ADD_LCSSA:%.*]] = phi half [ poison, [[FOR_BODY]] ], [ [[TMP7]], [[MIDDLE_BLOCK]] ]
; GFX9-NEXT: ret half [[ADD_LCSSA]]
;
; VI-LABEL: @vectorize_v2f16_loop(
; VI-NEXT: entry:
; VI-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; VI: vector.ph:
; VI-NEXT: br label [[VECTOR_BODY:%.*]]
; VI: vector.body:
; VI-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; VI-NEXT: [[VEC_PHI:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP4:%.*]], [[VECTOR_BODY]] ]
; VI-NEXT: [[VEC_PHI1:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP5:%.*]], [[VECTOR_BODY]] ]
; VI-NEXT: [[TMP0:%.*]] = getelementptr inbounds half, half addrspace(1)* [[S:%.*]], i64 [[INDEX]]
; VI-NEXT: [[TMP1:%.*]] = bitcast half addrspace(1)* [[TMP0]] to <2 x half> addrspace(1)*
; VI-NEXT: [[WIDE_LOAD:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP1]], align 2
; VI-NEXT: [[TMP2:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 2
; VI-NEXT: [[TMP3:%.*]] = bitcast half addrspace(1)* [[TMP2]] to <2 x half> addrspace(1)*
; VI-NEXT: [[WIDE_LOAD2:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP3]], align 2
; VI-NEXT: [[TMP4]] = fadd fast <2 x half> [[VEC_PHI]], [[WIDE_LOAD]]
; VI-NEXT: [[TMP5]] = fadd fast <2 x half> [[VEC_PHI1]], [[WIDE_LOAD2]]
; VI-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; VI-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 256
; VI-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; VI: middle.block:
; VI-NEXT: [[BIN_RDX:%.*]] = fadd fast <2 x half> [[TMP5]], [[TMP4]]
; VI-NEXT: [[TMP7:%.*]] = call fast half @llvm.vector.reduce.fadd.v2f16(half 0xH8000, <2 x half> [[BIN_RDX]])
; VI-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
; VI: scalar.ph:
; VI-NEXT: br label [[FOR_BODY:%.*]]
; VI: for.body:
; VI-NEXT: br i1 poison, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]]
; VI: for.end:
; VI-NEXT: [[ADD_LCSSA:%.*]] = phi half [ poison, [[FOR_BODY]] ], [ [[TMP7]], [[MIDDLE_BLOCK]] ]
; VI-NEXT: ret half [[ADD_LCSSA]]
;
; CI-LABEL: @vectorize_v2f16_loop(
; CI-NEXT: entry:
; CI-NEXT: br label [[FOR_BODY:%.*]]
; CI: for.body:
; CI-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
; CI-NEXT: [[Q_04:%.*]] = phi half [ 0xH0000, [[ENTRY]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
; CI-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds half, half addrspace(1)* [[S:%.*]], i64 [[INDVARS_IV]]
; CI-NEXT: [[TMP0:%.*]] = load half, half addrspace(1)* [[ARRAYIDX]], align 2
; CI-NEXT: [[ADD]] = fadd fast half [[Q_04]], [[TMP0]]
; CI-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CI-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 256
; CI-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]]
; CI: for.end:
; CI-NEXT: ret half [[ADD]]
;
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%q.04 = phi half [ 0.0, %entry ], [ %add, %for.body ]
%arrayidx = getelementptr inbounds half, half addrspace(1)* %s, i64 %indvars.iv
%0 = load half, half addrspace(1)* %arrayidx, align 2
%add = fadd fast half %q.04, %0
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, 256
br i1 %exitcond, label %for.end, label %for.body
for.end:
%add.lcssa = phi half [ %add, %for.body ]
ret half %add.lcssa
}