58 lines
2.1 KiB
LLVM
58 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes="loop(indvars,loop-deletion,loop-unroll-full)" -verify-scev -S %s | FileCheck %s
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define i32 @test(i32 %p_16, i1 %c) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[P_16:%.*]], 6
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; CHECK-NEXT: [[OR_1:%.*]] = or disjoint i32 [[XOR]], [[P_16]]
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; CHECK-NEXT: [[XOR_1:%.*]] = xor i32 [[OR_1]], 6
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; CHECK-NEXT: [[OR_2:%.*]] = or disjoint i32 [[XOR_1]], [[P_16]]
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; CHECK-NEXT: [[XOR_2:%.*]] = xor i32 [[OR_2]], 6
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; CHECK-NEXT: br label [[OUTER_HEADER:%.*]]
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; CHECK: outer.header:
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; CHECK-NEXT: br label [[INNER_HEADER:%.*]]
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; CHECK: inner.header:
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; CHECK-NEXT: br i1 [[C:%.*]], label [[OUTER_LATCH:%.*]], label [[INNER_LATCH:%.*]]
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; CHECK: inner.latch:
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; CHECK-NEXT: br i1 [[C]], label [[OUTER_LATCH]], label [[INNER_LATCH_1:%.*]]
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; CHECK: inner.latch.1:
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; CHECK-NEXT: br i1 [[C]], label [[OUTER_LATCH]], label [[INNER_LATCH_2:%.*]]
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; CHECK: inner.latch.2:
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; CHECK-NEXT: br i1 [[C]], label [[OUTER_LATCH]], label [[INNER_LATCH_3:%.*]]
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; CHECK: inner.latch.3:
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; CHECK-NEXT: [[XOR_2_LCSSA:%.*]] = phi i32 [ [[XOR_2]], [[INNER_LATCH_2]] ]
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; CHECK-NEXT: [[OR_3:%.*]] = or disjoint i32 [[XOR_2_LCSSA]], [[P_16]]
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; CHECK-NEXT: [[XOR_3:%.*]] = xor i32 [[OR_3]], 6
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; CHECK-NEXT: ret i32 [[XOR_3]]
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; CHECK: outer.latch:
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; CHECK-NEXT: br label [[OUTER_HEADER]]
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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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%p.1 = phi i32 [ 0, %entry ], [ %p.2.lcssa, %outer.latch ]
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br label %inner.header
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inner.header:
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%p.2 = phi i32 [ %p.1, %outer.header ], [ %xor, %inner.latch]
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%p.3 = phi i32 [ 0, %outer.header ], [ %add, %inner.latch ]
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br i1 %c, label %outer.latch, label %inner.latch
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inner.latch:
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%or = or disjoint i32 %p.2, %p_16
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%xor = xor i32 %or, 6
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%add = add nuw nsw i32 %p.3, 1
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%cmp = icmp ult i32 %p.3, 3
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br i1 %cmp, label %inner.header, label %exit
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outer.latch: ; preds = %for.body2928
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%p.2.lcssa = phi i32 [ %p.2, %inner.header ]
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br label %outer.header
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exit:
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%xor.lcssa = phi i32 [ %xor, %inner.latch ]
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ret i32 %xor.lcssa
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}
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