635b752211
With opaque pointers, both the stored value and the address can be the same. Only consider the recipe using the first lane only *if* the address is not stored. Fixes #55375.
39 lines
1.8 KiB
LLVM
39 lines
1.8 KiB
LLVM
; RUN: opt -passes=loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S %s | FileCheck %s
|
|
|
|
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-linux-gnu"
|
|
|
|
%pair = type { ptr, ptr }
|
|
|
|
define void @test_pr55375_interleave_opaque_ptr(ptr %start, ptr %end) {
|
|
; CHECK-LABEL: @test_pr55375_interleave_opaque_ptr(
|
|
; CHECK: vector.body:
|
|
; CHECK-NEXT: [[POINTER_PHI:%.*]] = phi ptr [ %start, %vector.ph ], [ [[PTR_IND:%.*]], %vector.body ]
|
|
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
|
|
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[POINTER_PHI]], <2 x i64> <i64 0, i64 16>
|
|
; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x ptr> [[TMP5]], i32 0
|
|
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr ptr, ptr [[TMP7]], i32 0
|
|
; CHECK-NEXT: [[TMP11:%.*]] = shufflevector <2 x ptr> zeroinitializer, <2 x ptr> [[TMP5]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
|
|
; CHECK-NEXT: [[INTERLEAVED_VEC:%.*]] = shufflevector <4 x ptr> [[TMP11]], <4 x ptr> poison, <4 x i32> <i32 0, i32 2, i32 1, i32 3>
|
|
; CHECK-NEXT: store <4 x ptr> [[INTERLEAVED_VEC]], ptr [[TMP8]], align 8
|
|
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
|
|
; CHECK-NEXT: [[PTR_IND]] = getelementptr i8, ptr [[POINTER_PHI]], i64 32
|
|
; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], %n.vec
|
|
; CHECK-NEXT: br i1 [[TMP13]], label %middle.block, label %vector.body
|
|
;
|
|
entry:
|
|
br label %loop
|
|
|
|
loop:
|
|
%iv = phi ptr [ %start, %entry ], [ %iv.next, %loop ]
|
|
%iv.1 = getelementptr inbounds %pair, ptr %iv, i64 0, i32 1
|
|
store ptr %iv, ptr %iv.1, align 8
|
|
store ptr null, ptr %iv, align 8
|
|
%iv.next = getelementptr inbounds %pair, ptr %iv, i64 1
|
|
%ec = icmp eq ptr %iv.next, %end
|
|
br i1 %ec, label %exit, label %loop
|
|
|
|
exit:
|
|
ret void
|
|
}
|