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; RUN: llc -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -stop-after=x86-optimize-LEAs -experimental-debug-variable-locations=false < %s \
; RUN: | FileCheck %s --check-prefix=NORMAL
; RUN: llc -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -stop-after=x86-optimize-LEAs -experimental-debug-variable-locations < %s \
; RUN: | FileCheck %s --check-prefix=INSTRREF
; The LEA optimization pass used to crash on this testcase.
; This test case used to trigger:
;
; assert(MRI->use_empty(LastVReg) &&
; "The LEA's def register must have no uses");
; CHECK: LEA64r
; CHECK-NOT: LEA64r
; NORMAL: DBG_VALUE_LIST
; INSTRREF: DBG_INSTR_REF
target triple = "x86_64-unknown-linux-gnu"
%t10 = type { ptr, [32 x i8] }
define void @foo() {
bb_entry:
%tmp11 = alloca [0 x [0 x i32]], i32 0, align 4
%i = alloca %t10, align 8
%i1 = alloca %t10, align 8
br label %bb_8
bb_8: ; preds = %bb_last, %bb_entry
br i1 undef, label %bb_last, label %bb_mid
bb_mid: ; preds = %bb_8
%i4 = getelementptr inbounds %t10, ptr %i1, i64 0, i32 1, i64 32
%i6 = getelementptr inbounds %t10, ptr %i, i64 0, i32 1, i64 32
call void @llvm.lifetime.start.p0(i64 0, ptr nonnull %i1)
%v21 = call i64 @llvm.ctlz.i64(i64 undef, i1 false)
call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull dereferenceable(16) null, ptr noundef nonnull align 8 dereferenceable(16) %i4, i64 16, i1 false)
call void @llvm.dbg.value(metadata !DIArgList(ptr %i4, ptr %i4), metadata !4, metadata !DIExpression(DW_OP_LLVM_arg, 0)), !dbg !9
call void @llvm.lifetime.end.p0(i64 0, ptr nonnull %i1)
call void @llvm.lifetime.start.p0(i64 0, ptr nonnull %i)
call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull dereferenceable(16) null, ptr noundef nonnull align 8 dereferenceable(16) %i6, i64 16, i1 false)
call void @llvm.lifetime.end.p0(i64 0, ptr nonnull %i)
br label %bb_last
bb_last: ; preds = %bb_mid, %bb_8
call void @llvm.lifetime.start.p0(i64 0, ptr nonnull %tmp11)
call void undef(ptr null, ptr null, ptr null, i32 0, ptr nonnull %tmp11)
call void @llvm.lifetime.end.p0(i64 0, ptr nonnull %tmp11)
br label %bb_8
}
declare i64 @llvm.ctlz.i64(i64, i1 immarg)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
declare void @llvm.dbg.value(metadata, metadata, metadata)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!2}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug)
!1 = !DIFile(filename: "n", directory: "/proc/self/cwd", checksumkind: CSK_MD5, checksum: "e588179fedd8fcdfada963f2434cb950")
!2 = !{i32 2, !"Debug Info Version", i32 3}
!3 = !{!"function_entry_count", i64 2423}
!4 = !DILocalVariable(name: "r", scope: !5, file: !6, line: 93)
!5 = distinct !DISubprogram(name: "c", scope: !7, file: !6, line: 92, spFlags: DISPFlagDefinition, unit: !0)
!6 = !DIFile(filename: "a", directory: "/proc/self/cwd")
!7 = !DINamespace(name: "u", scope: !8)
!8 = !DINamespace(name: "s", scope: null)
!9 = !DILocation(line: 0, scope: !5)
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