4a6f475446
The modified tests didn't have actual users of all inductions, making it trivial to eliminate them. Add users to make sure the inductions are actually used in the vectorized version.
57 lines
2.4 KiB
LLVM
57 lines
2.4 KiB
LLVM
; RUN: opt -S -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 < %s 2>&1 | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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@b = common local_unnamed_addr global i8 0, align 1
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define void @doit1(i32* %ptr) {
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; CHECK-LABEL: @doit1(
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; CHECK: vector.body:
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; CHECK-NEXT: [[MAIN_IV:%.*]] = phi i32 [ 0, [[VECTOR_PH:%.*]] ], [ [[MAIN_IV_NEXT:%.*]], [[VECTOR_BODY:%.*]] ]
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; CHECK-NEXT: [[I8_IV:%.*]] = phi <4 x i8> [ zeroinitializer, [[VECTOR_PH]] ], [ [[I8_IV_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[I32_IV:%.*]] = phi <4 x i32> [ <i32 0, i32 9, i32 18, i32 27>, [[VECTOR_PH]] ], [ [[I32_IV_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[IV_FROM_TRUNC:%.*]] = phi <4 x i8> [ <i8 0, i8 9, i8 18, i8 27>, [[VECTOR_PH]] ], [ [[IV_FROM_TRUNC_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP7:%.*]] = add i32 [[MAIN_IV]], 0
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; CHECK-NEXT: [[I8_IV_NEXT]] = add <4 x i8> [[I8_IV]], [[IV_FROM_TRUNC]]
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; CHECK-NEXT: [[GEP1:%.+]] = getelementptr inbounds i32, i32* %ptr, i32 [[TMP7]]
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; CHECK-NEXT: [[GEP2:%.+]] = getelementptr inbounds i32, i32* [[GEP1]], i32 0
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; CHECK-NEXT: [[GEP_BC:%.+]] = bitcast i32* [[GEP2]] to <4 x i32>*
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; CHECK-NEXT: store <4 x i32> [[I32_IV]], <4 x i32>* [[GEP_BC]], align 4
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; CHECK-NEXT: [[MAIN_IV_NEXT]] = add nuw i32 [[MAIN_IV]], 4
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; CHECK-NEXT: [[I32_IV_NEXT]] = add <4 x i32> [[I32_IV]], <i32 36, i32 36, i32 36, i32 36>
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; CHECK-NEXT: [[IV_FROM_TRUNC_NEXT]] = add <4 x i8> [[IV_FROM_TRUNC]], <i8 36, i8 36, i8 36, i8 36>
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; CHECK-NEXT: [[TMP9:%.*]] = icmp eq i32 [[MAIN_IV_NEXT]], 16
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; CHECK-NEXT: br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop !0
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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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%main.iv = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%i8.iv = phi i8 [ 0, %entry ], [ %i8.add, %for.body ]
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%i32.iv = phi i32 [ 0, %entry ], [ %i32.add, %for.body ]
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%trunc.to.be.converted.to.new.iv = trunc i32 %i32.iv to i8
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%i8.add = add i8 %i8.iv, %trunc.to.be.converted.to.new.iv
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%ptr.gep = getelementptr inbounds i32, i32* %ptr, i32 %main.iv
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store i32 %i32.iv, i32* %ptr.gep
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%noop.conv.under.pse = and i32 %i32.iv, 255
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%i32.add = add nuw nsw i32 %noop.conv.under.pse, 9
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%inc = add i32 %main.iv, 1
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%tobool = icmp eq i32 %inc, 16
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br i1 %tobool, label %for.cond.for.end_crit_edge, label %for.body
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for.cond.for.end_crit_edge:
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store i8 %i8.add, i8* @b, align 1
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br label %for.end
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for.end:
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ret void
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}
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