101 lines
4.1 KiB
LLVM
101 lines
4.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -loop-vectorize -force-vector-width=2 %s -S | FileCheck %s
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; Test case for PR47343. Make sure LCSSA phis are create correctly when
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; expanding the memory runtime checks.
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@f.e = external global i32, align 1
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@d = external global i8*, align 1
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declare i1 @cond()
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define void @f() {
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; CHECK-LABEL: @f(
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; CHECK: outer.header:
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; CHECK-NEXT: [[TMP0:%.*]] = load i8*, i8** @d, align 1
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; CHECK-NEXT: [[C_0:%.*]] = call i1 @cond()
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; CHECK-NEXT: br i1 [[C_0]], label %outer.exit.0, label %inner.1.header.preheader
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; CHECK: outer.exit.0:
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; CHECK-NEXT: [[DOTLCSSA:%.*]] = phi i8* [ [[TMP0]], %outer.header ]
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; CHECK-NEXT: br label %loop.preheader
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; CHECK: outer.exit.1:
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; CHECK-NEXT: [[DOTLCSSA1:%.*]] = phi i8* [ [[TMP0]], %inner.1.latch ]
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; CHECK-NEXT: br label %loop.preheader
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; CHECK: loop.preheader:
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; CHECK-NEXT: [[TMP1:%.*]] = phi i8* [ [[DOTLCSSA]], %outer.exit.0 ], [ [[DOTLCSSA1]], %outer.exit.1 ]
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; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]]
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; CHECK: vector.memcheck:
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; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, i8* [[TMP1]], i64 1
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; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult i8* bitcast (i32* @f.e to i8*), [[SCEVGEP]]
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; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult i8* [[TMP0]], getelementptr (i8, i8* bitcast (i32* @f.e to i8*), i64 1)
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; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
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; CHECK-NEXT: [[MEMCHECK_CONFLICT:%.*]] = and i1 [[FOUND_CONFLICT]], true
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; CHECK-NEXT: br i1 [[MEMCHECK_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[INDEX]], 0
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; CHECK-NEXT: store i32 0, i32* @f.e, align 1, !alias.scope !0, !noalias !3
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; CHECK-NEXT: store i32 0, i32* @f.e, align 1, !alias.scope !0, !noalias !3
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; CHECK-NEXT: store i8 10, i8* [[TMP0]], align 1
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; CHECK-NEXT: store i8 10, i8* [[TMP0]], align 1
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; CHECK-NEXT: [[INDEX_NEXT]] = add i32 [[INDEX]], 2
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; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], 500
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; CHECK-NEXT: br i1 [[TMP3]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], [[LOOP5:!llvm.loop !.*]]
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; CHECK: middle.block:
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; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 500, 500
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; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: [[TMP4:%.*]] = phi i8* [ [[TMP1]], %vector.memcheck ], [ [[TMP1]], %loop.preheader ], [ [[TMP1]], %middle.block ]
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; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 500, %middle.block ], [ 0, %loop.preheader ], [ 0, %vector.memcheck ]
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; CHECK-NEXT: br label [[LOOP:%.*]]
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;
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entry:
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br label %outer.header
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outer.header: ; preds = %cleanup, %entry
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%0 = load i8*, i8** @d, align 1
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%c.0 = call i1 @cond()
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br i1 %c.0, label %outer.exit.0, label %inner.1.header
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inner.1.header: ; preds = %if.end, %for.body3.lr.ph.outer
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%c.1 = call i1 @cond()
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br i1 %c.1, label %inner.1.latch, label %outer.latch
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inner.1.latch: ; preds = %land.end
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%c.2 = call i1 @cond()
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br i1 %c.2, label %outer.exit.1, label %inner.1.header
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outer.latch: ; preds = %land.end
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br label %outer.header
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outer.exit.0: ; preds = %if.end, %if.end.us.us.us
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br label %loop
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outer.exit.1: ; preds = %if.end, %if.end.us.us.us
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br label %loop
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loop: ; preds = %if.end.us.us.us, %for.body3.lr.ph.outer
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%iv = phi i32 [ %iv.next, %loop ], [ 0, %outer.exit.0 ], [ 0, %outer.exit.1 ]
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%conv6.us.us.us = zext i1 false to i32
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store i32 %conv6.us.us.us, i32* @f.e, align 1
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store i8 10, i8* %0, align 1
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%iv.next = add nsw i32 %iv, 1
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%ec = icmp eq i32 %iv.next, 500
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br i1 %ec, label %exit, label %loop
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exit:
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ret void
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}
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