; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=loop-vectorize -force-vector-width=2 %s -S | FileCheck %s
; Test case for PR47343. Make sure LCSSA phis are create correctly when
; expanding the memory runtime checks.
@f.e = external global i32, align 1
@d = external global ptr, align 1
declare i1 @cond()
define void @f() {
; CHECK-LABEL: @f(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[OUTER_HEADER:%.*]]
; CHECK: outer.header:
; CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr @d, align 1
; CHECK-NEXT: [[C_0:%.*]] = call i1 @cond()
; CHECK-NEXT: br i1 [[C_0]], label [[OUTER_EXIT_0:%.*]], label [[INNER_1_HEADER_PREHEADER:%.*]]
; CHECK: inner.1.header.preheader:
; CHECK-NEXT: br label [[INNER_1_HEADER:%.*]]
; CHECK: inner.1.header:
; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond()
; CHECK-NEXT: br i1 [[C_1]], label [[INNER_1_LATCH:%.*]], label [[OUTER_LATCH:%.*]]
; CHECK: inner.1.latch:
; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond()
; CHECK-NEXT: br i1 [[C_2]], label [[OUTER_EXIT_1:%.*]], label [[INNER_1_HEADER]]
; CHECK: outer.latch:
; CHECK-NEXT: br label [[OUTER_HEADER]]
; CHECK: outer.exit.0:
; CHECK-NEXT: [[DOTLCSSA:%.*]] = phi ptr [ [[TMP0]], [[OUTER_HEADER]] ]
; CHECK-NEXT: br label [[LOOP_PREHEADER:%.*]]
; CHECK: outer.exit.1:
; CHECK-NEXT: [[DOTLCSSA1:%.*]] = phi ptr [ [[TMP0]], [[INNER_1_LATCH]] ]
; CHECK-NEXT: br label [[LOOP_PREHEADER]]
; CHECK: loop.preheader:
; CHECK-NEXT: [[TMP1:%.*]] = phi ptr [ [[DOTLCSSA]], [[OUTER_EXIT_0]] ], [ [[DOTLCSSA1]], [[OUTER_EXIT_1]] ]
; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]]
; CHECK: vector.memcheck:
; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[TMP1]], i64 1
; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr @f.e, [[SCEVGEP]]
; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[TMP1]], getelementptr inbounds nuw (i8, ptr @f.e, i64 4)
; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: store i32 0, ptr @f.e, align 1, !alias.scope [[META0:![0-9]+]], !noalias [[META3:![0-9]+]]
; CHECK-NEXT: store i8 10, ptr [[TMP0]], align 1
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[INDEX_NEXT]], 500
; CHECK-NEXT: br i1 [[TMP2]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 500, [[MIDDLE_BLOCK]] ], [ 0, [[LOOP_PREHEADER]] ], [ 0, [[VECTOR_MEMCHECK]] ]
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ [[IV_NEXT:%.*]], [[LOOP]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
; CHECK-NEXT: [[CONV6_US_US_US:%.*]] = zext i1 false to i32
; CHECK-NEXT: store i32 [[CONV6_US_US_US]], ptr @f.e, align 1
; CHECK-NEXT: store i8 10, ptr [[TMP1]], align 1
; CHECK-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1
; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[IV_NEXT]], 500
; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
br label %outer.header
outer.header: ; preds = %cleanup, %entry
%0 = load ptr, ptr @d, align 1
%c.0 = call i1 @cond()
br i1 %c.0, label %outer.exit.0, label %inner.1.header
inner.1.header: ; preds = %if.end, %for.body3.lr.ph.outer
%c.1 = call i1 @cond()
br i1 %c.1, label %inner.1.latch, label %outer.latch
inner.1.latch: ; preds = %land.end
%c.2 = call i1 @cond()
br i1 %c.2, label %outer.exit.1, label %inner.1.header
outer.latch: ; preds = %land.end
br label %outer.header
outer.exit.0: ; preds = %if.end, %if.end.us.us.us
br label %loop
outer.exit.1: ; preds = %if.end, %if.end.us.us.us
br label %loop
loop: ; preds = %if.end.us.us.us, %for.body3.lr.ph.outer
%iv = phi i32 [ %iv.next, %loop ], [ 0, %outer.exit.0 ], [ 0, %outer.exit.1 ]
%conv6.us.us.us = zext i1 false to i32
store i32 %conv6.us.us.us, ptr @f.e, align 1
store i8 10, ptr %0, align 1
%iv.next = add nsw i32 %iv, 1
%ec = icmp eq i32 %iv.next, 500
br i1 %ec, label %exit, label %loop
exit:
ret void
}
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