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llvm-project/llvm/test/Transforms/LoopVectorize/consecutive-ptr-uniforms.ll
Nikita Popov 385fe30ee0
[InstCombine] Strip trailing zero GEP indices (#151338) 
Zero indices at the end do not change the GEP offset and can be removed.

(Doing the same at the start requires adjusting the source element
type.)
2025-07-30 17:55:00 +02:00

504 lines
21 KiB
LLVM
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; REQUIRES: asserts
; RUN: opt %s -passes=loop-vectorize,instcombine -force-vector-width=4 -force-vector-interleave=1 -debug-only=loop-vectorize -disable-output -print-after=instcombine 2>&1 | FileCheck %s
; RUN: opt %s -passes=loop-vectorize,instcombine -force-vector-width=4 -force-vector-interleave=1 -enable-interleaved-mem-accesses -debug-only=loop-vectorize -disable-output -print-after=instcombine 2>&1 | FileCheck %s --check-prefix=INTER
target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
%pair = type { i32, i32 }
; CHECK-LABEL: consecutive_ptr_forward
;
; Check that a forward consecutive pointer is recognized as uniform and remains
; uniform after vectorization.
;
; CHECK: LV: Found uniform instruction: %tmp1 = getelementptr inbounds i32, ptr %a, i64 %i
; CHECK: vector.body
; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK-NOT: getelementptr
; CHECK: getelementptr inbounds i32, ptr %a, i64 %index
; CHECK-NOT: getelementptr
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define i32 @consecutive_ptr_forward(ptr %a, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%tmp0 = phi i32 [ %tmp3, %for.body ], [ 0, %entry ]
%tmp1 = getelementptr inbounds i32, ptr %a, i64 %i
%tmp2 = load i32, ptr %tmp1, align 8
%tmp3 = add i32 %tmp0, %tmp2
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
%tmp4 = phi i32 [ %tmp3, %for.body ]
ret i32 %tmp4
}
; CHECK-LABEL: consecutive_ptr_reverse
;
; Check that a reverse consecutive pointer is recognized as uniform and remains
; uniform after vectorization.
;
; CHECK: LV: Found uniform instruction: %tmp1 = getelementptr inbounds i32, ptr %a, i64 %i
; CHECK: vector.body
; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK: [[OFFSET_IDX:%.+]] = sub i64 %n, %index
; CHECK-NOT: getelementptr
; CHECK: %[[G0:.+]] = getelementptr inbounds i32, ptr %a, i64 [[OFFSET_IDX]]
; CHECK: getelementptr inbounds i8, ptr %[[G0]], i64 -12
; CHECK-NOT: getelementptr
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define i32 @consecutive_ptr_reverse(ptr %a, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ %n, %entry ]
%tmp0 = phi i32 [ %tmp3, %for.body ], [ 0, %entry ]
%tmp1 = getelementptr inbounds i32, ptr %a, i64 %i
%tmp2 = load i32, ptr %tmp1, align 8
%tmp3 = add i32 %tmp0, %tmp2
%i.next = add nsw i64 %i, -1
%cond = icmp sgt i64 %i.next, 0
br i1 %cond, label %for.body, label %for.end
for.end:
%tmp4 = phi i32 [ %tmp3, %for.body ]
ret i32 %tmp4
}
; CHECK-LABEL: interleaved_access_forward
; INTER-LABEL: interleaved_access_forward
;
; Check that a consecutive-like pointer used by a forward interleaved group is
; recognized as uniform and remains uniform after vectorization. When
; interleaved memory accesses aren't enabled, the pointer should not be
; recognized as uniform, and it should not be uniform after vectorization.
;
; CHECK-NOT: LV: Found uniform instruction: %tmp1 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 0
; CHECK-NOT: LV: Found uniform instruction: %tmp2 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 1
; CHECK: vector.body
; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK: %[[I1:.+]] = or disjoint i64 %index, 1
; CHECK: %[[I2:.+]] = or disjoint i64 %index, 2
; CHECK: %[[I3:.+]] = or disjoint i64 %index, 3
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %index
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I1]]
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I2]]
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I3]]
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %index, i32 1
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I1]], i32 1
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I2]], i32 1
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I3]], i32 1
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
; INTER: LV: Found uniform instruction: %tmp1 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 0
; INTER: LV: Found uniform instruction: %tmp2 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 1
; INTER: vector.body
; INTER: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; INTER-NOT: getelementptr
; INTER: getelementptr inbounds %pair, ptr %p, i64 %index
; INTER-NOT: getelementptr
; INTER: br i1 {{.*}}, label %middle.block, label %vector.body
;
define i32 @interleaved_access_forward(ptr %p, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%tmp0 = phi i32 [ %tmp6, %for.body ], [ 0, %entry ]
%tmp1 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 0
%tmp2 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 1
%tmp3 = load i32, ptr %tmp1, align 8
%tmp4 = load i32, ptr %tmp2, align 8
%tmp5 = add i32 %tmp3, %tmp4
%tmp6 = add i32 %tmp0, %tmp5
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
%tmp14 = phi i32 [ %tmp6, %for.body ]
ret i32 %tmp14
}
; CHECK-LABEL: interleaved_access_reverse
; INTER-LABEL: interleaved_access_reverse
;
; Check that a consecutive-like pointer used by a reverse interleaved group is
; recognized as uniform and remains uniform after vectorization. When
; interleaved memory accesses aren't enabled, the pointer should not be
; recognized as uniform, and it should not be uniform after vectorization.
;
; recognized as uniform, and it should not be uniform after vectorization.
; CHECK-NOT: LV: Found uniform instruction: %tmp1 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 0
; CHECK-NOT: LV: Found uniform instruction: %tmp2 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 1
; CHECK: vector.body
; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK: [[OFFSET_IDX:%.+]] = sub i64 %n, %index
; CHECK: %[[I1:.+]] = add i64 [[OFFSET_IDX]], -1
; CHECK: %[[I2:.+]] = add i64 [[OFFSET_IDX]], -2
; CHECK: %[[I3:.+]] = add i64 [[OFFSET_IDX]], -3
; CHECK: getelementptr inbounds %pair, ptr %p, i64 [[OFFSET_IDX]]
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I1]]
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I2]]
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I3]]
; CHECK: getelementptr inbounds %pair, ptr %p, i64 [[OFFSET_IDX]], i32 1
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I1]], i32 1
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I2]], i32 1
; CHECK: getelementptr inbounds %pair, ptr %p, i64 %[[I3]], i32 1
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
; INTER: LV: Found uniform instruction: %tmp1 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 0
; INTER: LV: Found uniform instruction: %tmp2 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 1
; INTER: vector.body
; INTER: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; INTER: [[OFFSET_IDX:%.+]] = sub i64 %n, %index
; INTER-NOT: getelementptr
; INTER: %[[G0:.+]] = getelementptr inbounds %pair, ptr %p, i64 [[OFFSET_IDX]]
; INTER: getelementptr inbounds i8, ptr %[[G0]], i64 -24
; INTER-NOT: getelementptr
; INTER: br i1 {{.*}}, label %middle.block, label %vector.body
;
define i32 @interleaved_access_reverse(ptr %p, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ %n, %entry ]
%tmp0 = phi i32 [ %tmp6, %for.body ], [ 0, %entry ]
%tmp1 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 0
%tmp2 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 1
%tmp3 = load i32, ptr %tmp1, align 8
%tmp4 = load i32, ptr %tmp2, align 8
%tmp5 = add i32 %tmp3, %tmp4
%tmp6 = add i32 %tmp0, %tmp5
%i.next = add nsw i64 %i, -1
%cond = icmp sgt i64 %i.next, 0
br i1 %cond, label %for.body, label %for.end
for.end:
%tmp14 = phi i32 [ %tmp6, %for.body ]
ret i32 %tmp14
}
; INTER-LABEL: predicated_store
;
; Check that a consecutive-like pointer used by a forward interleaved group and
; scalarized store is not recognized as uniform and is not uniform after
; vectorization. The store is scalarized because it's in a predicated block.
; Even though the load in this example is vectorized and only uses the pointer
; as if it were uniform, the store is scalarized, making the pointer
; non-uniform.
;
; INTER-NOT: LV: Found uniform instruction: %tmp0 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 0
; INTER: vector.body
; INTER: %index = phi i64 [ 0, %vector.ph ], [ %index.next, {{.*}} ]
; INTER: %[[G0:.+]] = getelementptr inbounds %pair, ptr %p, i64 %index
; INTER: %wide.vec = load <8 x i32>, ptr %[[G0]], align 8
; INTER: %[[G1:.+]] = getelementptr %pair, ptr %p, i64 %index
; INTER: getelementptr i8, ptr %[[G1]], i64 8
; INTER: %[[G2:.+]] = getelementptr %pair, ptr %p, i64 %index
; INTER: getelementptr i8, ptr %[[G2]], i64 16
; INTER: %[[G3:.+]] = getelementptr %pair, ptr %p, i64 %index
; INTER: getelementptr i8, ptr %[[G3]], i64 24
; INTER: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @predicated_store(ptr %p, i32 %x, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %if.merge ], [ 0, %entry ]
%tmp0 = getelementptr inbounds %pair, ptr %p, i64 %i, i32 0
%tmp1 = load i32, ptr %tmp0, align 8
%tmp2 = icmp eq i32 %tmp1, %x
br i1 %tmp2, label %if.then, label %if.merge
if.then:
store i32 %tmp1, ptr %tmp0, align 8
br label %if.merge
if.merge:
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
; CHECK-LABEL: irregular_type
;
; Check that a consecutive pointer used by a scalarized store is not recognized
; as uniform and is not uniform after vectorization. The store is scalarized
; because the stored type may required padding.
;
; CHECK-NOT: LV: Found uniform instruction: %tmp1 = getelementptr inbounds x86_fp80, ptr %a, i64 %i
; CHECK: vector.body
; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK: getelementptr inbounds x86_fp80, ptr %a, i64 %index
; CHECK: %[[G1:.+]] = getelementptr x86_fp80, ptr %a, i64 %index
; CHECK: getelementptr i8, ptr %[[G1]], i64 16
; CHECK: %[[G2:.+]] = getelementptr x86_fp80, ptr %a, i64 %index
; CHECK: getelementptr i8, ptr %[[G2]], i64 32
; CHECK: %[[G3:.+]] = getelementptr x86_fp80, ptr %a, i64 %index
; CHECK: getelementptr i8, ptr %[[G3]], i64 48
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @irregular_type(ptr %a, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
%tmp0 = sitofp i32 1 to x86_fp80
%tmp1 = getelementptr inbounds x86_fp80, ptr %a, i64 %i
store x86_fp80 %tmp0, ptr %tmp1, align 16
%i.next = add i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
; CHECK-LABEL: pointer_iv_uniform
;
; Check that a pointer induction variable is recognized as uniform and remains
; uniform after vectorization.
;
; CHECK: LV: Found uniform instruction: %p = phi ptr [ %tmp03, %for.body ], [ %a, %entry ]
; CHECK: vector.body
; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK-NOT: getelementptr
; CHECK: [[SHL:%.+]] = shl i64 %index, 2
; CHECK: %next.gep = getelementptr i8, ptr %a, i64 [[SHL]]
; CHECK-NOT: getelementptr
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @pointer_iv_uniform(ptr %a, i32 %x, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%p = phi ptr [ %tmp03, %for.body ], [ %a, %entry ]
store i32 %x, ptr %p, align 8
%tmp03 = getelementptr inbounds i32, ptr %p, i32 1
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
; INTER-LABEL: pointer_iv_non_uniform_0
;
; Check that a pointer induction variable with a non-uniform user is not
; recognized as uniform and is not uniform after vectorization. The pointer
; induction variable is used by getelementptr instructions that are non-uniform
; due to scalarization of the stores.
;
; INTER-NOT: LV: Found uniform instruction: %p = phi ptr [ %tmp03, %for.body ], [ %a, %entry ]
; INTER: vector.body
; INTER: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; INTER: %[[I0:.+]] = shl i64 %index, 4
; INTER-NEXT: %next.gep = getelementptr i8, ptr %a, i64 %[[I0]]
; INTER-NEXT: %[[G2:.+]] = getelementptr i8, ptr %a, i64 %[[I0]]
; INTER-NEXT: %[[G3:.+]] = getelementptr i8, ptr %a, i64 %[[I0]]
; INTER-NEXT: %[[G4:.+]] = getelementptr i8, ptr %a, i64 %[[I0]]
; INTER: = getelementptr i8, ptr %[[G2]], i64 24
; INTER-NEXT: = getelementptr i8, ptr %[[G3]], i64 40
; INTER-NEXT: = getelementptr i8, ptr %[[G4]], i64 56
; INTER: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @pointer_iv_non_uniform_0(ptr %a, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%p = phi ptr [ %tmp03, %for.body ], [ %a, %entry ]
%tmp00 = load i32, ptr %p, align 8
%tmp01 = getelementptr inbounds i32, ptr %p, i32 1
%tmp02 = load i32, ptr %tmp01, align 8
%tmp03 = getelementptr inbounds i32, ptr %p, i32 4
%tmp04 = load i32, ptr %tmp03, align 8
%tmp05 = getelementptr inbounds i32, ptr %p, i32 5
%tmp06 = load i32, ptr %tmp05, align 8
%tmp07 = sub i32 %tmp04, %tmp00
%tmp08 = sub i32 %tmp02, %tmp02
%tmp09 = getelementptr inbounds i32, ptr %p, i32 2
store i32 %tmp07, ptr %tmp09, align 8
%tmp10 = getelementptr inbounds i32, ptr %p, i32 3
store i32 %tmp08, ptr %tmp10, align 8
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
; CHECK-LABEL: pointer_iv_non_uniform_1
;
; Check that a pointer induction variable with a non-uniform user is not
; recognized as uniform and is not uniform after vectorization. The pointer
; induction variable is used by a store that will be scalarized.
;
; CHECK-NOT: LV: Found uniform instruction: %p = phi ptr [%tmp1, %for.body], [%a, %entry]
; CHECK: vector.body
; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK: [[SHL1:%.+]] = shl i64 %index, 4
; CHECK: %next.gep = getelementptr i8, ptr %a, i64 [[SHL1]]
; CHECK: %[[G1:.+]] = getelementptr i8, ptr %a, i64 [[SHL1]]
; CHECK: = getelementptr i8, ptr %[[G1]], i64 16
; CHECK: %[[G2:.+]] = getelementptr i8, ptr %a, i64 [[SHL1]]
; CHECK: = getelementptr i8, ptr %[[G2]], i64 32
; CHECK: %[[G3:.+]] = getelementptr i8, ptr %a, i64 [[SHL1]]
; CHECK: = getelementptr i8, ptr %[[G3]], i64 48
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @pointer_iv_non_uniform_1(ptr %a, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%p = phi ptr [%tmp1, %for.body], [%a, %entry]
%tmp0 = sitofp i32 1 to x86_fp80
store x86_fp80 %tmp0, ptr %p, align 16
%tmp1 = getelementptr inbounds x86_fp80, ptr %p, i32 1
%i.next = add i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
; CHECK-LABEL: pointer_iv_mixed
;
; Check multiple pointer induction variables where only one is recognized as
; uniform and remains uniform after vectorization. The other pointer induction
; variable is not recognized as uniform and is not uniform after vectorization
; because it is stored to memory.
;
; CHECK-NOT: LV: Found uniform instruction: %p = phi ptr [ %tmp3, %for.body ], [ %a, %entry ]
; CHECK: LV: Found uniform instruction: %q = phi ptr [ %tmp4, %for.body ], [ %b, %entry ]
; CHECK: vector.body
; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK: %pointer.phi = phi ptr [ %a, %vector.ph ], [ %ptr.ind, %vector.body ]
; CHECK: %[[PTRVEC:.+]] = getelementptr i8, ptr %pointer.phi, <4 x i64> <i64 0, i64 4, i64 8, i64 12>
; CHECK: [[SHL:%.+]] = shl i64 %index, 3
; CHECK: %next.gep = getelementptr i8, ptr %b, i64 [[SHL]]
; CHECK: store <4 x ptr> %[[PTRVEC]], ptr %next.gep, align 8
; CHECK: %ptr.ind = getelementptr i8, ptr %pointer.phi, i64 16
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define i32 @pointer_iv_mixed(ptr %a, ptr %b, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%p = phi ptr [ %tmp3, %for.body ], [ %a, %entry ]
%q = phi ptr [ %tmp4, %for.body ], [ %b, %entry ]
%tmp0 = phi i32 [ %tmp2, %for.body ], [ 0, %entry ]
%tmp1 = load i32, ptr %p, align 8
%tmp2 = add i32 %tmp1, %tmp0
store ptr %p, ptr %q, align 8
%tmp3 = getelementptr inbounds i32, ptr %p, i32 1
%tmp4 = getelementptr inbounds ptr, ptr %q, i32 1
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
%tmp5 = phi i32 [ %tmp2, %for.body ]
ret i32 %tmp5
}
; INTER-LABEL: pointer_operand_geps_with_different_indexed_types
;
; Check that a pointer operand having a user other than a memory access is
; recognized as uniform after vectorization. In this test case, %tmp0 is a
; GEP that is used by a load and a getelementptr instruction (%tmp2). Once
; %tmp2 is marked uniform, %tmp0 should be marked uniform as well.
;
; INTER: LV: Found uniform instruction: %cond = icmp slt i64 %i.next, %n
; INTER-NEXT: LV: Found uniform instruction: %tmp2 = getelementptr inbounds i8, ptr %tmp0, i64 3
; INTER-NEXT: LV: Found uniform instruction: %tmp6 = getelementptr inbounds i8, ptr %B, i64 %i
; INTER-NEXT: LV: Found uniform instruction: %tmp0 = getelementptr inbounds i64, ptr %A, i64 %i
; INTER-NEXT: LV: Found uniform instruction: %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
; INTER-NEXT: LV: Found uniform instruction: %i.next = add nuw nsw i64 %i, 1
; INTER: define void @pointer_operand_geps_with_different_indexed_types(
; INTER: vector.body:
; INTER-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; INTER-NEXT: [[TMP4:%.*]] = getelementptr inbounds i64, ptr %A, i64 [[INDEX]]
; INTER-NEXT: [[WIDE_VEC:%.*]] = load <32 x i8>, ptr [[TMP4]], align 1
; INTER-NEXT: [[STRIDED_VEC:%.*]] = shufflevector <32 x i8> [[WIDE_VEC]], <32 x i8> poison, <4 x i32> <i32 0, i32 8, i32 16, i32 24>
; INTER-NEXT: [[STRIDED_VEC3:%.*]] = shufflevector <32 x i8> [[WIDE_VEC]], <32 x i8> poison, <4 x i32> <i32 3, i32 11, i32 19, i32 27>
; INTER-NEXT: [[TMP5:%.*]] = xor <4 x i8> [[STRIDED_VEC3]], [[STRIDED_VEC]]
; INTER-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, ptr %B, i64 [[INDEX]]
; INTER-NEXT: store <4 x i8> [[TMP5]], ptr [[TMP6]], align 1
; INTER-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; INTER: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @pointer_operand_geps_with_different_indexed_types(ptr %A, ptr %B, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
%tmp0 = getelementptr inbounds i64, ptr %A, i64 %i
%tmp2 = getelementptr inbounds i8, ptr %tmp0, i64 3
%tmp3 = load i8, ptr %tmp2, align 1
%tmp4 = load i8, ptr %tmp0, align 1
%tmp5 = xor i8 %tmp3, %tmp4
%tmp6 = getelementptr inbounds i8, ptr %B, i64 %i
store i8 %tmp5, ptr %tmp6
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
; CHECK-LABEL: pr61396_pointer_used_as_both_stored_value_and_pointer_operand_by_store
; CHECK-NOT: LV: Found uniform instruction: %cur.ptr = getelementptr inbounds ptr, ptr %ary, i64 %iv
; CHECK: define void @pr61396_pointer_used_as_both_stored_value_and_pointer_operand_by_store(
; CHECK: vector.body:
; CHECK-NEXT: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK-NEXT: [[VEC_IND:%.+]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %vector.ph ], [ %vec.ind.next, %vector.body ]
; CHECK-NEXT: [[GEP:%.+]] = getelementptr inbounds ptr, ptr %ary, <4 x i64> [[VEC_IND]]
; CHECK-NEXT: [[EXT:%.+]] = extractelement <4 x ptr> [[GEP]], i64 0
; CHECK-NEXT: store <4 x ptr> [[GEP]], ptr [[EXT]], align 8
;
define void @pr61396_pointer_used_as_both_stored_value_and_pointer_operand_by_store(ptr %ary) {
entry:
br label %loop
loop:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
%cur.ptr = getelementptr inbounds ptr, ptr %ary, i64 %iv
store ptr %cur.ptr, ptr %cur.ptr, align 8
%iv.next = add nuw nsw i64 %iv, 1
%done = icmp eq i64 %iv, 10240
br i1 %done, label %exit, label %loop
exit:
ret void
}
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