| ; 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) |
