52 lines
2.3 KiB
LLVM
52 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -consthoist -consthoist-gep=1 -S | FileCheck %s
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; This is a reproducer for PR43903 where we hit an assertion:
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; opt: ../lib/Transforms/Scalar/ConstantHoisting.cpp:903: bool llvm::ConstantHoistingPass::emitBaseConstants(llvm::GlobalVariable *): Assertion `UsesNum == (ReBasesNum + NotRebasedNum) && "Not all uses are rebased"' failed.
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target triple = "x86_64-unknown-linux-gnu"
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@a = external global [2 x i16], align 1
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define void @c() {
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; CHECK-LABEL: @c(
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; CHECK-NEXT: for.cond:
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; CHECK-NEXT: br i1 undef, label [[FOR_BODY2:%.*]], label [[FOR_END4:%.*]]
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; CHECK: for.body2:
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; CHECK-NEXT: br i1 undef, label [[LAND_RHS:%.*]], label [[LAND_END:%.*]]
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; CHECK: land.rhs:
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; CHECK-NEXT: unreachable
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; CHECK: land.end:
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; CHECK-NEXT: [[CONST1:%.*]] = bitcast i16* getelementptr inbounds ([2 x i16], [2 x i16]* @a, i32 0, i32 0) to i16*
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; CHECK-NEXT: [[CMP:%.*]] = icmp ule i16* undef, [[CONST1]]
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; CHECK-NEXT: unreachable
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; CHECK: for.cond3:
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; CHECK-NEXT: [[TMP0:%.*]] = load i16, i16* getelementptr inbounds ([2 x i16], [2 x i16]* @a, i32 0, i32 1), align 1
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; CHECK-NEXT: br label [[FOR_COND3:%.*]]
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; CHECK: for.end4:
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; CHECK-NEXT: [[CONST:%.*]] = bitcast i16* getelementptr inbounds ([2 x i16], [2 x i16]* @a, i32 0, i32 0) to i16*
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; CHECK-NEXT: [[TMP1:%.*]] = load i16, i16* [[CONST]], align 1
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; CHECK-NEXT: ret void
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;
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for.cond:
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br i1 undef, label %for.body2, label %for.end4
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for.body2: ; preds = %for.cond
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br i1 undef, label %land.rhs, label %land.end
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land.rhs: ; preds = %for.body2
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unreachable
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land.end: ; preds = %for.body2
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%cmp = icmp ule i16* undef, getelementptr inbounds ([2 x i16], [2 x i16]* @a, i32 0, i32 0)
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unreachable
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for.cond3: ; preds = %for.cond3
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%tmp0 = load i16, i16* getelementptr inbounds ([2 x i16], [2 x i16]* @a, i32 0, i32 1), align 1
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br label %for.cond3
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for.end4: ; preds = %for.cond
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%tmp1 = load i16, i16* getelementptr inbounds ([2 x i16], [2 x i16]* @a, i32 0, i32 0), align 1
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ret void
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}
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