derek.holloway
7502bf64a4
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104 lines
3.9 KiB
LLVM
104 lines
3.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=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 ptr, 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-NEXT: entry:
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; CHECK-NEXT: br label [[OUTER_HEADER:%.*]]
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; CHECK: outer.header:
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; CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr @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: inner.1.header.preheader:
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; CHECK-NEXT: br label [[INNER_1_HEADER:%.*]]
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; CHECK: inner.1.header:
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; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond()
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; CHECK-NEXT: br i1 [[C_1]], label [[INNER_1_LATCH:%.*]], label [[OUTER_LATCH:%.*]]
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; CHECK: inner.1.latch:
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; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond()
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; CHECK-NEXT: br i1 [[C_2]], label [[OUTER_EXIT_1:%.*]], label [[INNER_1_HEADER]]
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; CHECK: outer.latch:
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; CHECK-NEXT: br label [[OUTER_HEADER]]
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; CHECK: outer.exit.0:
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; CHECK-NEXT: br label [[LOOP_PREHEADER:%.*]]
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; CHECK: outer.exit.1:
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; CHECK-NEXT: br label [[LOOP_PREHEADER]]
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; CHECK: loop.preheader:
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; CHECK-NEXT: br label [[VECTOR_MEMCHECK:%.*]]
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; CHECK: vector.memcheck:
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; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[TMP0]], i64 1
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; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr @f.e, [[SCEVGEP]]
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; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[TMP0]], getelementptr inbounds nuw (i8, ptr @f.e, i64 4)
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; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
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; CHECK-NEXT: br i1 [[FOUND_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: store i32 0, ptr @f.e, align 1, !alias.scope [[META0:![0-9]+]], !noalias [[META3:![0-9]+]]
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; CHECK-NEXT: store i8 10, ptr [[TMP0]], align 1, !alias.scope [[META3]]
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[INDEX_NEXT]], 500
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; CHECK-NEXT: br i1 [[TMP2]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
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; CHECK: middle.block:
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; CHECK-NEXT: br label [[EXIT:%.*]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[IV:%.*]] = phi i32 [ [[IV_NEXT:%.*]], [[LOOP]] ], [ 0, [[SCALAR_PH]] ]
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; CHECK-NEXT: [[CONV6_US_US_US:%.*]] = zext i1 false to i32
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; CHECK-NEXT: store i32 [[CONV6_US_US_US]], ptr @f.e, align 1
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; CHECK-NEXT: store i8 10, ptr [[TMP0]], align 1
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; CHECK-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1
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; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[IV_NEXT]], 500
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; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP8:![0-9]+]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %outer.header
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outer.header:
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%0 = load ptr, ptr @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:
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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:
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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:
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br label %outer.header
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outer.exit.0:
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br label %loop
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outer.exit.1:
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br label %loop
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loop:
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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, ptr @f.e, align 1
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store i8 10, ptr %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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