derek.holloway
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104 lines
4.2 KiB
LLVM
104 lines
4.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
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; RUN: opt < %s -simple-loop-unswitch-inject-invariant-conditions=true -passes='loop(simple-loop-unswitch<nontrivial>,loop-instsimplify)' -S | FileCheck %s
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define void @test() {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[TMP:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[TMP1:%.*]] = load atomic i32, ptr addrspace(1) poison unordered, align 8
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; CHECK-NEXT: [[TMP2:%.*]] = load atomic i32, ptr addrspace(1) poison unordered, align 8
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; CHECK-NEXT: br i1 [[TMP]], label [[BB_SPLIT:%.*]], label [[BB3_SPLIT_US:%.*]], !prof [[PROF0:![0-9]+]]
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; CHECK: bb.split:
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; CHECK-NEXT: br label [[BB3:%.*]]
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; CHECK: bb3:
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; CHECK-NEXT: br label [[BB3_SPLIT:%.*]]
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; CHECK: bb3.split.us:
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; CHECK-NEXT: br label [[BB4_US:%.*]]
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; CHECK: bb4.us:
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; CHECK-NEXT: [[TMP5_US:%.*]] = phi i32 [ poison, [[BB3_SPLIT_US]] ]
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; CHECK-NEXT: [[TMP6_US:%.*]] = phi i32 [ poison, [[BB3_SPLIT_US]] ]
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; CHECK-NEXT: [[TMP7_US:%.*]] = add nuw nsw i32 [[TMP6_US]], 2
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; CHECK-NEXT: [[TMP8_US:%.*]] = icmp ult i32 [[TMP7_US]], [[TMP2]]
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; CHECK-NEXT: br i1 [[TMP8_US]], label [[BB9_US:%.*]], label [[BB16_SPLIT_US:%.*]], !prof [[PROF0]]
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; CHECK: bb9.us:
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; CHECK-NEXT: br label [[BB17_SPLIT_US:%.*]]
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; CHECK: bb16.split.us:
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; CHECK-NEXT: br label [[BB16:%.*]]
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; CHECK: bb17.split.us:
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; CHECK-NEXT: br label [[BB17:%.*]]
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; CHECK: bb3.split:
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; CHECK-NEXT: br label [[BB4:%.*]]
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; CHECK: bb4:
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; CHECK-NEXT: [[TMP5:%.*]] = phi i32 [ poison, [[BB3_SPLIT]] ], [ [[TMP14:%.*]], [[BB13:%.*]] ]
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; CHECK-NEXT: [[TMP6:%.*]] = phi i32 [ poison, [[BB3_SPLIT]] ], [ [[TMP5]], [[BB13]] ]
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; CHECK-NEXT: [[TMP7:%.*]] = add nuw nsw i32 [[TMP6]], 2
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; CHECK-NEXT: [[TMP8:%.*]] = icmp ult i32 [[TMP7]], [[TMP2]]
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; CHECK-NEXT: br i1 [[TMP8]], label [[BB9:%.*]], label [[BB16_SPLIT:%.*]], !prof [[PROF0]]
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; CHECK: bb9:
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; CHECK-NEXT: [[TMP10:%.*]] = icmp ult i32 [[TMP7]], [[TMP1]]
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; CHECK-NEXT: br i1 [[TMP10]], label [[BB12:%.*]], label [[BB17_SPLIT:%.*]], !prof [[PROF0]]
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; CHECK: bb12:
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; CHECK-NEXT: br i1 true, label [[BB15:%.*]], label [[BB13]]
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; CHECK: bb13:
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; CHECK-NEXT: [[TMP14]] = add nuw nsw i32 [[TMP5]], 1
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; CHECK-NEXT: br label [[BB4]]
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; CHECK: bb15:
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; CHECK-NEXT: br label [[BB3]]
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; CHECK: bb16.split:
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; CHECK-NEXT: br label [[BB16]]
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; CHECK: bb16:
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; CHECK-NEXT: ret void
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; CHECK: bb17.split:
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; CHECK-NEXT: br label [[BB17]]
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; CHECK: bb17:
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; CHECK-NEXT: ret void
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;
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bb:
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%tmp = call i1 @llvm.experimental.widenable.condition()
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%tmp1 = load atomic i32, ptr addrspace(1) poison unordered, align 8
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%tmp2 = load atomic i32, ptr addrspace(1) poison unordered, align 8
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br label %bb3
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bb3: ; preds = %bb15, %bb
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br label %bb4
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bb4: ; preds = %bb13, %bb3
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%tmp5 = phi i32 [ poison, %bb3 ], [ %tmp14, %bb13 ]
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%tmp6 = phi i32 [ poison, %bb3 ], [ %tmp5, %bb13 ]
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%tmp7 = add nuw nsw i32 %tmp6, 2
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%tmp8 = icmp ult i32 %tmp7, %tmp2
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br i1 %tmp8, label %bb9, label %bb16, !prof !0
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bb9: ; preds = %bb4
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%tmp10 = icmp ult i32 %tmp7, %tmp1
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%tmp11 = and i1 %tmp10, %tmp
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br i1 %tmp11, label %bb12, label %bb17, !prof !0
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bb12: ; preds = %bb9
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br i1 poison, label %bb15, label %bb13
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bb13: ; preds = %bb12
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%tmp14 = add nuw nsw i32 %tmp5, 1
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br label %bb4
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bb15: ; preds = %bb12
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br label %bb3
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bb16: ; preds = %bb4
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ret void
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bb17: ; preds = %bb9
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ret void
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}
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; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(inaccessiblemem: readwrite)
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declare i1 @llvm.experimental.widenable.condition()
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!0 = !{!"branch_weights", i32 1048576, i32 1}
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;.
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; CHECK: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(inaccessiblemem: readwrite) }
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;.
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; CHECK: [[PROF0]] = !{!"branch_weights", i32 1048576, i32 1}
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;.
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