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