997d7d1931
Needed manual fixes: 2008-01-06-VoidCast.ll alias.ll @0 type lost pr27703.ll totally confused pr44242.ll phi and update_test_checks pr44245.ll phi and update_test_checks Needed re-running update_test_checks: 2009-01-08-AlignAlloca.ll 2009-02-20-InstCombine-SROA.ll addrspacecast.ll alloca-cast-debuginfo.ll alloca-in-non-alloca-as.ll alloca.ll icmp-gep.ll icmp-custom-dl.ll lifetime-no-null-opt.ll non-integral-pointers.ll pr33689_same_bitwidth.ll pr39908.ll scalable-cast-of-alloc.ll select-cmp-br.ll unpack-fca.ll Converted to generated checks: 2012-6-7-vselect-bitcast.ll
48 lines
1.4 KiB
LLVM
48 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=instcombine %s -o - | FileCheck %s
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; All the "useless" instructions should be removed and we shouldn't crash.
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target datalayout = "p:16:16"
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%i64_t = type i64
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@a = external global i16
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@b = external global ptr
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define void @f(i1 %cond) {
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; CHECK-LABEL: @f(
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; CHECK-NEXT: bb0:
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; CHECK-NEXT: [[T1:%.*]] = alloca i64, align 8
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: unreachable
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; CHECK: bb2:
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; CHECK-NEXT: [[T9:%.*]] = load ptr, ptr @b, align 2
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; CHECK-NEXT: store i16 0, ptr [[T9]], align 2
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; CHECK-NEXT: [[T10:%.*]] = load i32, ptr [[T1]], align 8
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; CHECK-NEXT: [[T11:%.*]] = add i32 [[T10]], -1
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; CHECK-NEXT: store i32 [[T11]], ptr [[T1]], align 8
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; CHECK-NEXT: ret void
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;
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bb0:
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%t1 = alloca %i64_t
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%useless4 = getelementptr inbounds i16, ptr %t1, i16 undef
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br i1 %cond, label %bb1, label %bb2
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bb1: ; preds = %bb0
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%useless6 = insertvalue [1 x ptr] undef, ptr %t1, 0
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%useless7 = insertvalue [1 x ptr] %useless6, ptr null, 0
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%t8 = ptrtoint ptr %t1 to i16
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store i16 %t8, ptr @a
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unreachable
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bb2: ; preds = %bb0
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%t9 = load ptr, ptr @b
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store i16 0, ptr %t9
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%t10 = load i32, ptr %t1
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%t11 = sub i32 %t10, 1
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store i32 %t11, ptr %t1
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ret void
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}
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