derek.holloway
7502bf64a4
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40 lines
1.1 KiB
LLVM
40 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=instcombine < %s | FileCheck %s
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; Check that we don't crash on unreasonable constant indexes
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define i32 @test_out_of_bounds(i32 %a, i1 %x, i1 %y) {
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; CHECK-LABEL: @test_out_of_bounds(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: store i1 true, ptr poison, align 1
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; CHECK-NEXT: ret i32 poison
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;
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entry:
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%and1 = and i32 %a, 3
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%B = lshr i32 %and1, -2147483648
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%cmp = icmp eq i32 %B, 1
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tail call void @llvm.assume(i1 %cmp)
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ret i32 %and1
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}
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define i128 @test_non64bit(i128 %a) {
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; CHECK-LABEL: @test_non64bit(
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; CHECK-NEXT: store i1 true, ptr poison, align 1
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; CHECK-NEXT: ret i128 poison
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;
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%and1 = and i128 %a, 3
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%B = lshr i128 %and1, -1
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%cmp = icmp eq i128 %B, 1
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tail call void @llvm.assume(i1 %cmp)
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ret i128 %and1
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}
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declare void @llvm.assume(i1)
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define <4 x double> @inselt_bad_index(<4 x double> %a) {
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; CHECK-LABEL: @inselt_bad_index(
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; CHECK-NEXT: ret <4 x double> poison
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;
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%I = insertelement <4 x double> %a, double 0.0, i64 4294967296
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ret <4 x double> %I
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}
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