[llvm] 34f81cf - [LoopVectorize][NFC] Split reductions out from sve-tail-folding into new file
David Sherwood via llvm-commits
llvm-commits at lists.llvm.org
Mon Jul 18 05:57:01 PDT 2022
Author: David Sherwood
Date: 2022-07-18T13:56:39+01:00
New Revision: 34f81cfa3dd5c67358522e509a9a23c0b33591ff
URL: https://github.com/llvm/llvm-project/commit/34f81cfa3dd5c67358522e509a9a23c0b33591ff
DIFF: https://github.com/llvm/llvm-project/commit/34f81cfa3dd5c67358522e509a9a23c0b33591ff.diff
LOG: [LoopVectorize][NFC] Split reductions out from sve-tail-folding into new file
In sve-tail-folding-reductions.ll I've also added an extra RUN line
to test normal reductions, i.e. not in-loop. This patch is a pre-commit
in preparation for a follow-on patch that changes how reduction selects
are generated in the vector loop.
Differential Revision: https://reviews.llvm.org/D129761
Added:
llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-reductions.ll
Modified:
llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll
Removed:
################################################################################
diff --git a/llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-reductions.ll b/llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-reductions.ll
new file mode 100644
index 000000000000..ec6910120dad
--- /dev/null
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-reductions.ll
@@ -0,0 +1,335 @@
+; RUN: opt -S -hints-allow-reordering=false -loop-vectorize -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue \
+; RUN: < %s | FileCheck %s --check-prefix=CHECK
+; RUN: opt -S -hints-allow-reordering=false -loop-vectorize -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue \
+; RUN: -prefer-inloop-reductions < %s | FileCheck %s --check-prefix=CHECK-IN-LOOP
+
+target triple = "aarch64-unknown-linux-gnu"
+
+define i32 @add_reduction_i32(i32* %ptr, i64 %n) #0 {
+; CHECK-LABEL: @add_reduction_i32(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1)
+; CHECK-NEXT: [[TMP0:%.*]] = sub i64 -1, [[UMAX]]
+; CHECK-NEXT: [[TMP1:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP2:%.*]] = mul i64 [[TMP1]], 4
+; CHECK-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP0]], [[TMP2]]
+; CHECK-NEXT: br i1 [[TMP3]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK: vector.ph:
+; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
+; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 4
+; CHECK-NEXT: [[TMP8:%.*]] = sub i64 [[TMP7]], 1
+; CHECK-NEXT: [[N_RND_UP:%.*]] = add i64 [[UMAX]], [[TMP8]]
+; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
+; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; CHECK-NEXT: [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[UMAX]])
+; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
+; CHECK: vector.body:
+; CHECK-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT: [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP13:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[INDEX1]], 0
+; CHECK-NEXT: [[TMP10:%.*]] = getelementptr i32, i32* [[PTR:%.*]], i64 [[TMP9]]
+; CHECK-NEXT: [[TMP11:%.*]] = getelementptr i32, i32* [[TMP10]], i32 0
+; CHECK-NEXT: [[TMP12:%.*]] = bitcast i32* [[TMP11]] to <vscale x 4 x i32>*
+; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0nxv4i32(<vscale x 4 x i32>* [[TMP12]], i32 4, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> poison)
+; CHECK-NEXT: [[TMP13]] = add <vscale x 4 x i32> [[VEC_PHI]], [[WIDE_MASKED_LOAD]]
+; CHECK-NEXT: [[TMP14:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> [[TMP13]], <vscale x 4 x i32> [[VEC_PHI]]
+; CHECK-NEXT: [[TMP15:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP16:%.*]] = mul i64 [[TMP15]], 4
+; CHECK-NEXT: [[INDEX_NEXT2]] = add i64 [[INDEX1]], [[TMP16]]
+; CHECK-NEXT: [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX_NEXT2]], i64 [[UMAX]])
+; CHECK-NEXT: [[TMP17:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK_NEXT]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i32 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-NEXT: [[TMP18:%.*]] = extractelement <vscale x 4 x i1> [[TMP17]], i32 0
+; CHECK-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; CHECK: middle.block:
+; CHECK-NEXT: [[TMP19:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP14]])
+; CHECK-NEXT: br i1 true, label [[WHILE_END_LOOPEXIT:%.*]], label [[SCALAR_PH]]
+;
+; CHECK-IN-LOOP-LABEL: @add_reduction_i32(
+; CHECK-IN-LOOP-NEXT: entry:
+; CHECK-IN-LOOP-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1)
+; CHECK-IN-LOOP-NEXT: [[TMP0:%.*]] = sub i64 -1, [[UMAX]]
+; CHECK-IN-LOOP-NEXT: [[TMP1:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP2:%.*]] = mul i64 [[TMP1]], 4
+; CHECK-IN-LOOP-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP0]], [[TMP2]]
+; CHECK-IN-LOOP-NEXT: br i1 [[TMP3]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-IN-LOOP: vector.ph:
+; CHECK-IN-LOOP-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
+; CHECK-IN-LOOP-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 4
+; CHECK-IN-LOOP-NEXT: [[TMP8:%.*]] = sub i64 [[TMP7]], 1
+; CHECK-IN-LOOP-NEXT: [[N_RND_UP:%.*]] = add i64 [[UMAX]], [[TMP8]]
+; CHECK-IN-LOOP-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
+; CHECK-IN-LOOP-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; CHECK-IN-LOOP-NEXT: [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[UMAX]])
+; CHECK-IN-LOOP-NEXT: br label [[VECTOR_BODY:%.*]]
+; CHECK-IN-LOOP: vector.body:
+; CHECK-IN-LOOP-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VECTOR_BODY]] ]
+; CHECK-IN-LOOP-NEXT: [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-IN-LOOP-NEXT: [[VEC_PHI:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[TMP15:%.*]], [[VECTOR_BODY]] ]
+; CHECK-IN-LOOP-NEXT: [[TMP9:%.*]] = add i64 [[INDEX1]], 0
+; CHECK-IN-LOOP-NEXT: [[TMP10:%.*]] = getelementptr i32, i32* [[PTR:%.*]], i64 [[TMP9]]
+; CHECK-IN-LOOP-NEXT: [[TMP11:%.*]] = getelementptr i32, i32* [[TMP10]], i32 0
+; CHECK-IN-LOOP-NEXT: [[TMP12:%.*]] = bitcast i32* [[TMP11]] to <vscale x 4 x i32>*
+; CHECK-IN-LOOP-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0nxv4i32(<vscale x 4 x i32>* [[TMP12]], i32 4, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> poison)
+; CHECK-IN-LOOP-NEXT: [[TMP13:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> [[WIDE_MASKED_LOAD]], <vscale x 4 x i32> zeroinitializer
+; CHECK-IN-LOOP-NEXT: [[TMP14:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP13]])
+; CHECK-IN-LOOP-NEXT: [[TMP15]] = add i32 [[TMP14]], [[VEC_PHI]]
+; CHECK-IN-LOOP-NEXT: [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP17:%.*]] = mul i64 [[TMP16]], 4
+; CHECK-IN-LOOP-NEXT: [[INDEX_NEXT2]] = add i64 [[INDEX1]], [[TMP17]]
+; CHECK-IN-LOOP-NEXT: [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX_NEXT2]], i64 [[UMAX]])
+; CHECK-IN-LOOP-NEXT: [[TMP18:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK_NEXT]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i32 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-IN-LOOP-NEXT: [[TMP19:%.*]] = extractelement <vscale x 4 x i1> [[TMP18]], i32 0
+; CHECK-IN-LOOP-NEXT: br i1 [[TMP19]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; CHECK-IN-LOOP: middle.block:
+; CHECK-IN-LOOP-NEXT: br i1 true, label [[WHILE_END_LOOPEXIT:%.*]], label [[SCALAR_PH]]
+;
+entry:
+ br label %while.body
+
+while.body: ; preds = %while.body, %entry
+ %index = phi i64 [ %index.next, %while.body ], [ 0, %entry ]
+ %red = phi i32 [ %red.next, %while.body ], [ 0, %entry ]
+ %gep = getelementptr i32, i32* %ptr, i64 %index
+ %val = load i32, i32* %gep
+ %red.next = add i32 %red, %val
+ %index.next = add nsw i64 %index, 1
+ %cmp10 = icmp ult i64 %index.next, %n
+ br i1 %cmp10, label %while.body, label %while.end.loopexit, !llvm.loop !0
+
+while.end.loopexit: ; preds = %while.body
+ ret i32 %red.next
+}
+
+define float @add_reduction_f32(float* %ptr, i64 %n) #0 {
+; CHECK-LABEL: @add_reduction_f32(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1)
+; CHECK-NEXT: [[TMP0:%.*]] = sub i64 -1, [[UMAX]]
+; CHECK-NEXT: [[TMP1:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP2:%.*]] = mul i64 [[TMP1]], 4
+; CHECK-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP0]], [[TMP2]]
+; CHECK-NEXT: br i1 [[TMP3]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK: vector.ph:
+; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
+; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 4
+; CHECK-NEXT: [[TMP8:%.*]] = sub i64 [[TMP7]], 1
+; CHECK-NEXT: [[N_RND_UP:%.*]] = add i64 [[UMAX]], [[TMP8]]
+; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
+; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; CHECK-NEXT: [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[UMAX]])
+; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
+; CHECK: vector.body:
+; CHECK-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT: [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT: [[VEC_PHI:%.*]] = phi float [ 0.000000e+00, [[VECTOR_PH]] ], [ [[TMP14:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[INDEX1]], 0
+; CHECK-NEXT: [[TMP10:%.*]] = getelementptr float, float* [[PTR:%.*]], i64 [[TMP9]]
+; CHECK-NEXT: [[TMP11:%.*]] = getelementptr float, float* [[TMP10]], i32 0
+; CHECK-NEXT: [[TMP12:%.*]] = bitcast float* [[TMP11]] to <vscale x 4 x float>*
+; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x float> @llvm.masked.load.nxv4f32.p0nxv4f32(<vscale x 4 x float>* [[TMP12]], i32 4, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x float> poison)
+; CHECK-NEXT: [[TMP13:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x float> [[WIDE_MASKED_LOAD]], <vscale x 4 x float> shufflevector (<vscale x 4 x float> insertelement (<vscale x 4 x float> poison, float -0.000000e+00, i32 0), <vscale x 4 x float> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-NEXT: [[TMP14]] = call float @llvm.vector.reduce.fadd.nxv4f32(float [[VEC_PHI]], <vscale x 4 x float> [[TMP13]])
+; CHECK-NEXT: [[TMP15:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP16:%.*]] = mul i64 [[TMP15]], 4
+; CHECK-NEXT: [[INDEX_NEXT2]] = add i64 [[INDEX1]], [[TMP16]]
+; CHECK-NEXT: [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX_NEXT2]], i64 [[UMAX]])
+; CHECK-NEXT: [[TMP17:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK_NEXT]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i32 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-NEXT: [[TMP18:%.*]] = extractelement <vscale x 4 x i1> [[TMP17]], i32 0
+; CHECK-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; CHECK: middle.block:
+; CHECK-NEXT: br i1 true, label [[WHILE_END_LOOPEXIT:%.*]], label [[SCALAR_PH]]
+;
+; CHECK-IN-LOOP-LABEL: @add_reduction_f32(
+; CHECK-IN-LOOP-NEXT: entry:
+; CHECK-IN-LOOP-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1)
+; CHECK-IN-LOOP-NEXT: [[TMP0:%.*]] = sub i64 -1, [[UMAX]]
+; CHECK-IN-LOOP-NEXT: [[TMP1:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP2:%.*]] = mul i64 [[TMP1]], 4
+; CHECK-IN-LOOP-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP0]], [[TMP2]]
+; CHECK-IN-LOOP-NEXT: br i1 [[TMP3]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-IN-LOOP: vector.ph:
+; CHECK-IN-LOOP-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
+; CHECK-IN-LOOP-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 4
+; CHECK-IN-LOOP-NEXT: [[TMP8:%.*]] = sub i64 [[TMP7]], 1
+; CHECK-IN-LOOP-NEXT: [[N_RND_UP:%.*]] = add i64 [[UMAX]], [[TMP8]]
+; CHECK-IN-LOOP-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
+; CHECK-IN-LOOP-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; CHECK-IN-LOOP-NEXT: [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[UMAX]])
+; CHECK-IN-LOOP-NEXT: br label [[VECTOR_BODY:%.*]]
+; CHECK-IN-LOOP: vector.body:
+; CHECK-IN-LOOP-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VECTOR_BODY]] ]
+; CHECK-IN-LOOP-NEXT: [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-IN-LOOP-NEXT: [[VEC_PHI:%.*]] = phi float [ 0.000000e+00, [[VECTOR_PH]] ], [ [[TMP14:%.*]], [[VECTOR_BODY]] ]
+; CHECK-IN-LOOP-NEXT: [[TMP9:%.*]] = add i64 [[INDEX1]], 0
+; CHECK-IN-LOOP-NEXT: [[TMP10:%.*]] = getelementptr float, float* [[PTR:%.*]], i64 [[TMP9]]
+; CHECK-IN-LOOP-NEXT: [[TMP11:%.*]] = getelementptr float, float* [[TMP10]], i32 0
+; CHECK-IN-LOOP-NEXT: [[TMP12:%.*]] = bitcast float* [[TMP11]] to <vscale x 4 x float>*
+; CHECK-IN-LOOP-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x float> @llvm.masked.load.nxv4f32.p0nxv4f32(<vscale x 4 x float>* [[TMP12]], i32 4, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x float> poison)
+; CHECK-IN-LOOP-NEXT: [[TMP13:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x float> [[WIDE_MASKED_LOAD]], <vscale x 4 x float> shufflevector (<vscale x 4 x float> insertelement (<vscale x 4 x float> poison, float -0.000000e+00, i32 0), <vscale x 4 x float> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-IN-LOOP-NEXT: [[TMP14]] = call float @llvm.vector.reduce.fadd.nxv4f32(float [[VEC_PHI]], <vscale x 4 x float> [[TMP13]])
+; CHECK-IN-LOOP-NEXT: [[TMP15:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP16:%.*]] = mul i64 [[TMP15]], 4
+; CHECK-IN-LOOP-NEXT: [[INDEX_NEXT2]] = add i64 [[INDEX1]], [[TMP16]]
+; CHECK-IN-LOOP-NEXT: [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX_NEXT2]], i64 [[UMAX]])
+; CHECK-IN-LOOP-NEXT: [[TMP17:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK_NEXT]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i32 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-IN-LOOP-NEXT: [[TMP18:%.*]] = extractelement <vscale x 4 x i1> [[TMP17]], i32 0
+; CHECK-IN-LOOP-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
+; CHECK-IN-LOOP: middle.block:
+; CHECK-IN-LOOP-NEXT: br i1 true, label [[WHILE_END_LOOPEXIT:%.*]], label [[SCALAR_PH]]
+;
+entry:
+ br label %while.body
+
+while.body: ; preds = %while.body, %entry
+ %index = phi i64 [ %index.next, %while.body ], [ 0, %entry ]
+ %red = phi float [ %red.next, %while.body ], [ 0.000000, %entry ]
+ %gep = getelementptr float, float* %ptr, i64 %index
+ %val = load float, float* %gep
+ %red.next = fadd float %red, %val
+ %index.next = add nsw i64 %index, 1
+ %cmp10 = icmp ult i64 %index.next, %n
+ br i1 %cmp10, label %while.body, label %while.end.loopexit, !llvm.loop !0
+
+while.end.loopexit: ; preds = %while.body
+ ret float %red.next
+}
+
+define i32 @cond_xor_reduction(i32* noalias %a, i32* noalias %cond, i64 %N) #0 {
+; CHECK-LABEL: @cond_xor_reduction(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[TMP0:%.*]] = sub i64 -1, [[N:%.*]]
+; CHECK-NEXT: [[TMP1:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP2:%.*]] = mul i64 [[TMP1]], 4
+; CHECK-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP0]], [[TMP2]]
+; CHECK-NEXT: br i1 [[TMP3]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK: vector.ph:
+; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
+; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 4
+; CHECK-NEXT: [[TMP8:%.*]] = sub i64 [[TMP7]], 1
+; CHECK-NEXT: [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP8]]
+; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
+; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; CHECK-NEXT: [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[N]])
+; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
+; CHECK: vector.body:
+; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT: [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ insertelement (<vscale x 4 x i32> zeroinitializer, i32 7, i32 0), [[VECTOR_PH]] ], [ [[PREDPHI:%.*]], [[VECTOR_BODY]] ]
+; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[INDEX]], 0
+; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds i32, i32* [[COND:%.*]], i64 [[TMP9]]
+; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds i32, i32* [[TMP10]], i32 0
+; CHECK-NEXT: [[TMP12:%.*]] = bitcast i32* [[TMP11]] to <vscale x 4 x i32>*
+; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0nxv4i32(<vscale x 4 x i32>* [[TMP12]], i32 4, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> poison)
+; CHECK-NEXT: [[TMP13:%.*]] = icmp eq <vscale x 4 x i32> [[WIDE_MASKED_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 5, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-NEXT: [[TMP14:%.*]] = getelementptr i32, i32* [[A:%.*]], i64 [[TMP9]]
+; CHECK-NEXT: [[TMP15:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i1> [[TMP13]], <vscale x 4 x i1> zeroinitializer
+; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i32, i32* [[TMP14]], i32 0
+; CHECK-NEXT: [[TMP17:%.*]] = bitcast i32* [[TMP16]] to <vscale x 4 x i32>*
+; CHECK-NEXT: [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0nxv4i32(<vscale x 4 x i32>* [[TMP17]], i32 4, <vscale x 4 x i1> [[TMP15]], <vscale x 4 x i32> poison)
+; CHECK-NEXT: [[TMP18:%.*]] = xor <vscale x 4 x i32> [[VEC_PHI]], [[WIDE_MASKED_LOAD1]]
+; CHECK-NEXT: [[TMP19:%.*]] = xor <vscale x 4 x i1> [[TMP13]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i32 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-NEXT: [[TMP20:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i1> [[TMP19]], <vscale x 4 x i1> zeroinitializer
+; CHECK-NEXT: [[PREDPHI]] = select <vscale x 4 x i1> [[TMP15]], <vscale x 4 x i32> [[TMP18]], <vscale x 4 x i32> [[VEC_PHI]]
+; CHECK-NEXT: [[TMP21:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> [[PREDPHI]], <vscale x 4 x i32> [[VEC_PHI]]
+; CHECK-NEXT: [[TMP22:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-NEXT: [[TMP23:%.*]] = mul i64 [[TMP22]], 4
+; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP23]]
+; CHECK-NEXT: [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX_NEXT]], i64 [[N]])
+; CHECK-NEXT: [[TMP24:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK_NEXT]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i32 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-NEXT: [[TMP25:%.*]] = extractelement <vscale x 4 x i1> [[TMP24]], i32 0
+; CHECK-NEXT: br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; CHECK: middle.block:
+; CHECK-NEXT: [[TMP26:%.*]] = call i32 @llvm.vector.reduce.xor.nxv4i32(<vscale x 4 x i32> [[TMP21]])
+; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
+;
+; CHECK-IN-LOOP-LABEL: @cond_xor_reduction(
+; CHECK-IN-LOOP-NEXT: entry:
+; CHECK-IN-LOOP-NEXT: [[TMP0:%.*]] = sub i64 -1, [[N:%.*]]
+; CHECK-IN-LOOP-NEXT: [[TMP1:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP2:%.*]] = mul i64 [[TMP1]], 4
+; CHECK-IN-LOOP-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP0]], [[TMP2]]
+; CHECK-IN-LOOP-NEXT: br i1 [[TMP3]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
+; CHECK-IN-LOOP: vector.ph:
+; CHECK-IN-LOOP-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
+; CHECK-IN-LOOP-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 4
+; CHECK-IN-LOOP-NEXT: [[TMP8:%.*]] = sub i64 [[TMP7]], 1
+; CHECK-IN-LOOP-NEXT: [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP8]]
+; CHECK-IN-LOOP-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
+; CHECK-IN-LOOP-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
+; CHECK-IN-LOOP-NEXT: [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[N]])
+; CHECK-IN-LOOP-NEXT: br label [[VECTOR_BODY:%.*]]
+; CHECK-IN-LOOP: vector.body:
+; CHECK-IN-LOOP-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-IN-LOOP-NEXT: [[ACTIVE_LANE_MASK:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ]
+; CHECK-IN-LOOP-NEXT: [[VEC_PHI:%.*]] = phi i32 [ 7, [[VECTOR_PH]] ], [ [[TMP20:%.*]], [[VECTOR_BODY]] ]
+; CHECK-IN-LOOP-NEXT: [[TMP9:%.*]] = add i64 [[INDEX]], 0
+; CHECK-IN-LOOP-NEXT: [[TMP10:%.*]] = getelementptr inbounds i32, i32* [[COND:%.*]], i64 [[TMP9]]
+; CHECK-IN-LOOP-NEXT: [[TMP11:%.*]] = getelementptr inbounds i32, i32* [[TMP10]], i32 0
+; CHECK-IN-LOOP-NEXT: [[TMP12:%.*]] = bitcast i32* [[TMP11]] to <vscale x 4 x i32>*
+; CHECK-IN-LOOP-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0nxv4i32(<vscale x 4 x i32>* [[TMP12]], i32 4, <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i32> poison)
+; CHECK-IN-LOOP-NEXT: [[TMP13:%.*]] = icmp eq <vscale x 4 x i32> [[WIDE_MASKED_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 5, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-IN-LOOP-NEXT: [[TMP14:%.*]] = getelementptr i32, i32* [[A:%.*]], i64 [[TMP9]]
+; CHECK-IN-LOOP-NEXT: [[TMP15:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK]], <vscale x 4 x i1> [[TMP13]], <vscale x 4 x i1> zeroinitializer
+; CHECK-IN-LOOP-NEXT: [[TMP16:%.*]] = getelementptr i32, i32* [[TMP14]], i32 0
+; CHECK-IN-LOOP-NEXT: [[TMP17:%.*]] = bitcast i32* [[TMP16]] to <vscale x 4 x i32>*
+; CHECK-IN-LOOP-NEXT: [[WIDE_MASKED_LOAD1:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0nxv4i32(<vscale x 4 x i32>* [[TMP17]], i32 4, <vscale x 4 x i1> [[TMP15]], <vscale x 4 x i32> poison)
+; CHECK-IN-LOOP-NEXT: [[TMP18:%.*]] = select <vscale x 4 x i1> [[TMP15]], <vscale x 4 x i32> [[WIDE_MASKED_LOAD1]], <vscale x 4 x i32> zeroinitializer
+; CHECK-IN-LOOP-NEXT: [[TMP19:%.*]] = call i32 @llvm.vector.reduce.xor.nxv4i32(<vscale x 4 x i32> [[TMP18]])
+; CHECK-IN-LOOP-NEXT: [[TMP20]] = xor i32 [[TMP19]], [[VEC_PHI]]
+; CHECK-IN-LOOP-NEXT: [[TMP21:%.*]] = call i64 @llvm.vscale.i64()
+; CHECK-IN-LOOP-NEXT: [[TMP22:%.*]] = mul i64 [[TMP21]], 4
+; CHECK-IN-LOOP-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP22]]
+; CHECK-IN-LOOP-NEXT: [[ACTIVE_LANE_MASK_NEXT]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX_NEXT]], i64 [[N]])
+; CHECK-IN-LOOP-NEXT: [[TMP23:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK_NEXT]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i32 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
+; CHECK-IN-LOOP-NEXT: [[TMP24:%.*]] = extractelement <vscale x 4 x i1> [[TMP23]], i32 0
+; CHECK-IN-LOOP-NEXT: br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
+; CHECK-IN-LOOP: middle.block:
+; CHECK-IN-LOOP-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
+;
+entry:
+ br label %for.body
+
+for.body:
+ %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.inc ]
+ %rdx = phi i32 [ 7, %entry ], [ %res, %for.inc ]
+ %arrayidx = getelementptr inbounds i32, i32* %cond, i64 %iv
+ %0 = load i32, i32* %arrayidx
+ %tobool = icmp eq i32 %0, 5
+ br i1 %tobool, label %if.then, label %for.inc
+
+if.then:
+ %arrayidx2 = getelementptr inbounds i32, i32* %a, i64 %iv
+ %1 = load i32, i32* %arrayidx2
+ %xor = xor i32 %rdx, %1
+ br label %for.inc
+
+for.inc:
+ %res = phi i32 [ %rdx, %for.body ], [ %xor, %if.then ]
+ %iv.next = add i64 %iv, 1
+ %exitcond.not = icmp eq i64 %iv.next, %N
+ br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0
+
+for.end:
+ ret i32 %res
+}
+
+!0 = distinct !{!0, !1, !2}
+!1 = !{!"llvm.loop.vectorize.width", i32 4}
+!2 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}
+!3 = distinct !{!3, !4}
+!4 = !{!"llvm.loop.vectorize.width", i32 4}
+
+attributes #0 = { "target-features"="+sve" }
diff --git a/llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll b/llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll
index 1d88a294fd86..b2da9d44b8b1 100644
--- a/llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll
@@ -1,4 +1,4 @@
-; RUN: opt -S -hints-allow-reordering=false -loop-vectorize -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue -prefer-inloop-reductions < %s | FileCheck %s
+; RUN: opt -S -hints-allow-reordering=false -loop-vectorize -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue < %s | FileCheck %s
target triple = "aarch64-unknown-linux-gnu"
@@ -562,198 +562,6 @@ while.end.loopexit: ; preds = %while.body
ret void
}
-
-define i32 @add_reduction_i32(i32* %ptr, i64 %n) #0 {
-; CHECK-LABEL: @add_reduction_i32(
-; CHECK-NEXT: entry:
-; CHECK-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1)
-; CHECK-NEXT: [[TMP2:%.*]] = sub i64 -1, [[UMAX]]
-; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 4
-; CHECK-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP2]], [[TMP1]]
-; CHECK-NEXT: br i1 [[TMP3]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
-; CHECK: vector.ph:
-; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
-; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 4
-; CHECK-NEXT: [[TMP8:%.*]] = sub i64 [[TMP7]], 1
-; CHECK-NEXT: [[N_RND_UP:%.*]] = add i64 [[UMAX]], [[TMP8]]
-; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
-; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
-; CHECK-NEXT: [[ACTIVE_LANE_MASK:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[UMAX]])
-; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
-; CHECK: vector.body:
-; CHECK-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT3:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT: [[ACTIVE_LANE_MASK2:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK4:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT: [[VEC_PHI:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[TMP15:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[INDEX1]], 0
-; CHECK-NEXT: [[TMP10:%.*]] = getelementptr i32, i32* [[PTR:%.*]], i64 [[TMP9]]
-; CHECK-NEXT: [[TMP11:%.*]] = getelementptr i32, i32* [[TMP10]], i32 0
-; CHECK-NEXT: [[TMP12:%.*]] = bitcast i32* [[TMP11]] to <vscale x 4 x i32>*
-; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0nxv4i32(<vscale x 4 x i32>* [[TMP12]], i32 4, <vscale x 4 x i1> [[ACTIVE_LANE_MASK2]], <vscale x 4 x i32> poison)
-; CHECK-NEXT: [[TMP13:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK2]], <vscale x 4 x i32> [[WIDE_MASKED_LOAD]], <vscale x 4 x i32> zeroinitializer
-; CHECK-NEXT: [[TMP14:%.*]] = call i32 @llvm.vector.reduce.add.nxv4i32(<vscale x 4 x i32> [[TMP13]])
-; CHECK-NEXT: [[TMP15]] = add i32 [[TMP14]], [[VEC_PHI]]
-; CHECK-NEXT: [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP17:%.*]] = mul i64 [[TMP16]], 4
-; CHECK-NEXT: [[INDEX_NEXT3]] = add i64 [[INDEX1]], [[TMP17]]
-; CHECK-NEXT: [[ACTIVE_LANE_MASK4]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX_NEXT3]], i64 [[UMAX]])
-; CHECK-NEXT: [[TMP18:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK4]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i32 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
-; CHECK-NEXT: [[TMP19:%.*]] = extractelement <vscale x 4 x i1> [[TMP18]], i32 0
-; CHECK-NEXT: br i1 [[TMP19]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
-; CHECK: middle.block:
-; CHECK-NEXT: br i1 true, label [[WHILE_END_LOOPEXIT:%.*]], label [[SCALAR_PH]]
-;
-entry:
- br label %while.body
-
-while.body: ; preds = %while.body, %entry
- %index = phi i64 [ %index.next, %while.body ], [ 0, %entry ]
- %red = phi i32 [ %red.next, %while.body ], [ 0, %entry ]
- %gep = getelementptr i32, i32* %ptr, i64 %index
- %val = load i32, i32* %gep
- %red.next = add i32 %red, %val
- %index.next = add nsw i64 %index, 1
- %cmp10 = icmp ult i64 %index.next, %n
- br i1 %cmp10, label %while.body, label %while.end.loopexit, !llvm.loop !0
-
-while.end.loopexit: ; preds = %while.body
- ret i32 %red.next
-}
-
-define float @add_reduction_f32(float* %ptr, i64 %n) #0 {
-; CHECK-LABEL: @add_reduction_f32(
-; CHECK-NEXT: entry:
-; CHECK-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1)
-; CHECK-NEXT: [[TMP2:%.*]] = sub i64 -1, [[UMAX]]
-; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 4
-; CHECK-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP2]], [[TMP1]]
-; CHECK-NEXT: br i1 [[TMP3]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
-; CHECK: vector.ph:
-; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
-; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 4
-; CHECK-NEXT: [[TMP8:%.*]] = sub i64 [[TMP7]], 1
-; CHECK-NEXT: [[N_RND_UP:%.*]] = add i64 [[UMAX]], [[TMP8]]
-; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
-; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
-; CHECK-NEXT: [[ACTIVE_LANE_MASK:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[UMAX]])
-; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
-; CHECK: vector.body:
-; CHECK-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT3:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT: [[ACTIVE_LANE_MASK2:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK4:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT: [[VEC_PHI:%.*]] = phi float [ 0.000000e+00, [[VECTOR_PH]] ], [ [[TMP14:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[INDEX1]], 0
-; CHECK-NEXT: [[TMP10:%.*]] = getelementptr float, float* [[PTR:%.*]], i64 [[TMP9]]
-; CHECK-NEXT: [[TMP11:%.*]] = getelementptr float, float* [[TMP10]], i32 0
-; CHECK-NEXT: [[TMP12:%.*]] = bitcast float* [[TMP11]] to <vscale x 4 x float>*
-; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x float> @llvm.masked.load.nxv4f32.p0nxv4f32(<vscale x 4 x float>* [[TMP12]], i32 4, <vscale x 4 x i1> [[ACTIVE_LANE_MASK2]], <vscale x 4 x float> poison)
-; CHECK-NEXT: [[TMP13:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK2]], <vscale x 4 x float> [[WIDE_MASKED_LOAD]], <vscale x 4 x float> shufflevector (<vscale x 4 x float> insertelement (<vscale x 4 x float> poison, float -0.000000e+00, i32 0), <vscale x 4 x float> poison, <vscale x 4 x i32> zeroinitializer)
-; CHECK-NEXT: [[TMP14]] = call float @llvm.vector.reduce.fadd.nxv4f32(float [[VEC_PHI]], <vscale x 4 x float> [[TMP13]])
-; CHECK-NEXT: [[TMP15:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP16:%.*]] = mul i64 [[TMP15]], 4
-; CHECK-NEXT: [[INDEX_NEXT3]] = add i64 [[INDEX1]], [[TMP16]]
-; CHECK-NEXT: [[ACTIVE_LANE_MASK4]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX_NEXT3]], i64 [[UMAX]])
-; CHECK-NEXT: [[TMP17:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK4]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i32 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
-; CHECK-NEXT: [[TMP18:%.*]] = extractelement <vscale x 4 x i1> [[TMP17]], i32 0
-; CHECK-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP22:![0-9]+]]
-; CHECK: middle.block:
-; CHECK-NEXT: br i1 true, label [[WHILE_END_LOOPEXIT:%.*]], label [[SCALAR_PH]]
-;
-entry:
- br label %while.body
-
-while.body: ; preds = %while.body, %entry
- %index = phi i64 [ %index.next, %while.body ], [ 0, %entry ]
- %red = phi float [ %red.next, %while.body ], [ 0.000000, %entry ]
- %gep = getelementptr float, float* %ptr, i64 %index
- %val = load float, float* %gep
- %red.next = fadd float %red, %val
- %index.next = add nsw i64 %index, 1
- %cmp10 = icmp ult i64 %index.next, %n
- br i1 %cmp10, label %while.body, label %while.end.loopexit, !llvm.loop !0
-
-while.end.loopexit: ; preds = %while.body
- ret float %red.next
-}
-
-define i32 @cond_xor_reduction(i32* noalias %a, i32* noalias %cond, i64 %N) #0 {
-; CHECK-LABEL: @cond_xor_reduction(
-; CHECK-NEXT: entry:
-; CHECK-NEXT: [[TMP2:%.*]] = sub i64 -1, [[N:%.*]]
-; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 4
-; CHECK-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP2]], [[TMP1]]
-; CHECK-NEXT: br i1 [[TMP3]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
-; CHECK: vector.ph:
-; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4
-; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 4
-; CHECK-NEXT: [[TMP8:%.*]] = sub i64 [[TMP7]], 1
-; CHECK-NEXT: [[N_RND_UP:%.*]] = add i64 [[N]], [[TMP8]]
-; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]]
-; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
-; CHECK-NEXT: [[ACTIVE_LANE_MASK:%.*]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[N]])
-; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
-; CHECK: vector.body:
-; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT: [[ACTIVE_LANE_MASK1:%.*]] = phi <vscale x 4 x i1> [ [[ACTIVE_LANE_MASK]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK3:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT: [[VEC_PHI:%.*]] = phi i32 [ 7, [[VECTOR_PH]] ], [ [[TMP20:%.*]], [[VECTOR_BODY]] ]
-; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[INDEX]], 0
-; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds i32, i32* [[COND:%.*]], i64 [[TMP9]]
-; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds i32, i32* [[TMP10]], i32 0
-; CHECK-NEXT: [[TMP12:%.*]] = bitcast i32* [[TMP11]] to <vscale x 4 x i32>*
-; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0nxv4i32(<vscale x 4 x i32>* [[TMP12]], i32 4, <vscale x 4 x i1> [[ACTIVE_LANE_MASK1]], <vscale x 4 x i32> poison)
-; CHECK-NEXT: [[TMP13:%.*]] = icmp eq <vscale x 4 x i32> [[WIDE_MASKED_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 5, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
-; CHECK-NEXT: [[TMP14:%.*]] = getelementptr i32, i32* [[A:%.*]], i64 [[TMP9]]
-; CHECK-NEXT: [[TMP15:%.*]] = select <vscale x 4 x i1> [[ACTIVE_LANE_MASK1]], <vscale x 4 x i1> [[TMP13]], <vscale x 4 x i1> zeroinitializer
-; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i32, i32* [[TMP14]], i32 0
-; CHECK-NEXT: [[TMP17:%.*]] = bitcast i32* [[TMP16]] to <vscale x 4 x i32>*
-; CHECK-NEXT: [[WIDE_MASKED_LOAD2:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0nxv4i32(<vscale x 4 x i32>* [[TMP17]], i32 4, <vscale x 4 x i1> [[TMP15]], <vscale x 4 x i32> poison)
-; CHECK-NEXT: [[TMP18:%.*]] = select <vscale x 4 x i1> [[TMP15]], <vscale x 4 x i32> [[WIDE_MASKED_LOAD2]], <vscale x 4 x i32> zeroinitializer
-; CHECK-NEXT: [[TMP19:%.*]] = call i32 @llvm.vector.reduce.xor.nxv4i32(<vscale x 4 x i32> [[TMP18]])
-; CHECK-NEXT: [[TMP20]] = xor i32 [[TMP19]], [[VEC_PHI]]
-; CHECK-NEXT: [[TMP21:%.*]] = call i64 @llvm.vscale.i64()
-; CHECK-NEXT: [[TMP22:%.*]] = mul i64 [[TMP21]], 4
-; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP22]]
-; CHECK-NEXT: [[ACTIVE_LANE_MASK3]] = call <vscale x 4 x i1> @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX_NEXT]], i64 [[N]])
-; CHECK-NEXT: [[TMP23:%.*]] = xor <vscale x 4 x i1> [[ACTIVE_LANE_MASK3]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i32 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
-; CHECK-NEXT: [[TMP24:%.*]] = extractelement <vscale x 4 x i1> [[TMP23]], i32 0
-; CHECK-NEXT: br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP24:![0-9]+]]
-; CHECK: middle.block:
-; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
-;
-entry:
- br label %for.body
-
-for.body:
- %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.inc ]
- %rdx = phi i32 [ 7, %entry ], [ %res, %for.inc ]
- %arrayidx = getelementptr inbounds i32, i32* %cond, i64 %iv
- %0 = load i32, i32* %arrayidx
- %tobool = icmp eq i32 %0, 5
- br i1 %tobool, label %if.then, label %for.inc
-
-if.then:
- %arrayidx2 = getelementptr inbounds i32, i32* %a, i64 %iv
- %1 = load i32, i32* %arrayidx2
- %xor = xor i32 %rdx, %1
- br label %for.inc
-
-for.inc:
- %res = phi i32 [ %rdx, %for.body ], [ %xor, %if.then ]
- %iv.next = add i64 %iv, 1
- %exitcond.not = icmp eq i64 %iv.next, %N
- br i1 %exitcond.not, label %for.end, label %for.body, !llvm.loop !0
-
-for.end:
- ret i32 %res
-}
-
; Negative tests where we don't expect tail-folding
; Integer divides can throw exceptions and since we can't scalarize conditional
More information about the llvm-commits
mailing list