54 lines
2.3 KiB
LLVM
54 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
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target datalayout = "p:128:64"
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; Test for 128 bit pointers. At the moment, constraints only support signed i64 offsets.
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define i1 @gep_decomp_large_index_63_bits(ptr %a) {
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; CHECK-LABEL: @gep_decomp_large_index_63_bits(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 9223372036854775804
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; CHECK-NEXT: [[GEP_2:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 9223372036854775805
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; CHECK-NEXT: [[NE:%.*]] = icmp ne ptr [[GEP_1]], [[GEP_2]]
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; CHECK-NEXT: call void @llvm.assume(i1 [[NE]])
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; CHECK-NEXT: [[CMP_ULE:%.*]] = icmp ule ptr [[GEP_1]], [[GEP_2]]
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; CHECK-NEXT: [[CMP_UGE:%.*]] = icmp uge ptr [[GEP_1]], [[GEP_2]]
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; CHECK-NEXT: [[RES:%.*]] = xor i1 [[CMP_ULE]], [[CMP_ULE]]
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; CHECK-NEXT: ret i1 [[RES]]
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;
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entry:
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%gep.1 = getelementptr inbounds i64, ptr %a, i64 9223372036854775804
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%gep.2 = getelementptr inbounds i64, ptr %a, i64 9223372036854775805
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%ne = icmp ne ptr %gep.1, %gep.2
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call void @llvm.assume(i1 %ne)
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%cmp.ule = icmp ule ptr %gep.1, %gep.2
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%cmp.uge = icmp uge ptr %gep.1, %gep.2
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%res = xor i1 %cmp.ule, %cmp.ule
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ret i1 %res
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}
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define i1 @gep_decomp_large_index_67_bits(ptr %a) {
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; CHECK-LABEL: @gep_decomp_large_index_67_bits(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i128 147573952589676412928
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; CHECK-NEXT: [[GEP_2:%.*]] = getelementptr inbounds i64, ptr [[A]], i128 147573952589676412929
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; CHECK-NEXT: [[NE:%.*]] = icmp ne ptr [[GEP_1]], [[GEP_2]]
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; CHECK-NEXT: call void @llvm.assume(i1 [[NE]])
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; CHECK-NEXT: [[CMP_ULE:%.*]] = icmp ule ptr [[GEP_1]], [[GEP_2]]
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; CHECK-NEXT: [[CMP_UGE:%.*]] = icmp uge ptr [[GEP_1]], [[GEP_2]]
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; CHECK-NEXT: [[RES:%.*]] = xor i1 [[CMP_ULE]], [[CMP_UGE]]
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; CHECK-NEXT: ret i1 [[RES]]
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;
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entry:
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%gep.1 = getelementptr inbounds i64, ptr %a, i128 147573952589676412928
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%gep.2 = getelementptr inbounds i64, ptr %a, i128 147573952589676412929
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%ne = icmp ne ptr %gep.1, %gep.2
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call void @llvm.assume(i1 %ne)
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%cmp.ule = icmp ule ptr %gep.1, %gep.2
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%cmp.uge = icmp uge ptr %gep.1, %gep.2
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%res = xor i1 %cmp.ule, %cmp.uge
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ret i1 %res
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}
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declare void @llvm.assume(i1)
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