| ; RUN: opt -hotcoldsplit -hotcoldsplit-threshold=2 -S < %s | FileCheck %s |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.14.0" |
| |
| ; Check that these functions are not split. Outlined functions are called from a |
| ; basic block named codeRepl. |
| |
| ; The cold region is too small to split. |
| ; CHECK-LABEL: @foo |
| ; CHECK-NOT: foo.cold.1 |
| define void @foo() { |
| entry: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| unreachable |
| |
| if.end: ; preds = %entry |
| ret void |
| } |
| |
| ; The cold region is still too small to split. |
| ; CHECK-LABEL: @bar |
| ; CHECK-NOT: bar.cold.1 |
| define void @bar() { |
| entry: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| call void @sink() |
| ret void |
| |
| if.end: ; preds = %entry |
| ret void |
| } |
| |
| ; Make sure we don't try to outline the entire function. |
| ; CHECK-LABEL: @fun |
| ; CHECK-NOT: fun.cold.1 |
| define void @fun() { |
| entry: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| call void @sink() |
| br label %if.end |
| |
| if.end: ; preds = %entry |
| ret void |
| } |
| |
| ; Do not split `noinline` functions. |
| ; CHECK-LABEL: @noinline_func |
| ; CHECK-NOT: noinline_func.cold.1 |
| define void @noinline_func() noinline { |
| entry: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| call void @sink() |
| br label %if.end |
| |
| if.end: ; preds = %entry |
| ret void |
| } |
| |
| ; Do not split `alwaysinline` functions. |
| ; CHECK-LABEL: @alwaysinline_func |
| ; CHECK-NOT: alwaysinline_func.cold.1 |
| define void @alwaysinline_func() alwaysinline { |
| entry: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| call void @sink() |
| br label %if.end |
| |
| if.end: ; preds = %entry |
| ret void |
| } |
| |
| ; Don't outline infinite loops. |
| ; CHECK-LABEL: @infinite_loop |
| ; CHECK-NOT: infinite_loop.cold.1 |
| define void @infinite_loop() { |
| entry: |
| br label %loop |
| |
| loop: |
| call void @sink() |
| br label %loop |
| } |
| |
| ; Don't count debug intrinsics towards the outlining threshold. |
| ; CHECK-LABEL: @dont_count_debug_intrinsics |
| ; CHECK-NOT: dont_count_debug_intrinsics.cold.1 |
| define void @dont_count_debug_intrinsics(i32 %arg1) !dbg !6 { |
| entry: |
| %var = add i32 0, 0, !dbg !11 |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| ret void |
| |
| if.end: ; preds = %entry |
| call void @llvm.dbg.value(metadata i32 %arg1, metadata !9, metadata !DIExpression()), !dbg !11 |
| call void @llvm.dbg.value(metadata i32 %arg1, metadata !9, metadata !DIExpression()), !dbg !11 |
| call void @sink() |
| ret void |
| } |
| |
| ; CHECK-LABEL: @sanitize_address |
| ; CHECK-NOT: sanitize_address.cold.1 |
| define void @sanitize_address() sanitize_address { |
| entry: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| call void @sink() |
| ret void |
| |
| if.end: ; preds = %entry |
| ret void |
| } |
| |
| ; CHECK-LABEL: @sanitize_hwaddress |
| ; CHECK-NOT: sanitize_hwaddress.cold.1 |
| define void @sanitize_hwaddress() sanitize_hwaddress { |
| entry: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| call void @sink() |
| ret void |
| |
| if.end: ; preds = %entry |
| ret void |
| } |
| |
| ; CHECK-LABEL: @sanitize_thread |
| ; CHECK-NOT: sanitize_thread.cold.1 |
| define void @sanitize_thread() sanitize_thread { |
| entry: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| call void @sink() |
| ret void |
| |
| if.end: ; preds = %entry |
| ret void |
| } |
| |
| ; CHECK-LABEL: @sanitize_memory |
| ; CHECK-NOT: sanitize_memory.cold.1 |
| define void @sanitize_memory() sanitize_memory { |
| entry: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| call void @sink() |
| ret void |
| |
| if.end: ; preds = %entry |
| ret void |
| } |
| |
| declare void @llvm.trap() cold noreturn |
| |
| ; CHECK-LABEL: @nosanitize_call |
| ; CHECK-NOT: nosanitize_call.cold.1 |
| define void @nosanitize_call() sanitize_memory { |
| entry: |
| br i1 undef, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| call void @llvm.trap(), !nosanitize !2 |
| unreachable |
| |
| if.end: ; preds = %entry |
| ret void |
| } |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| declare void @sink() cold |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.debugify = !{!3, !4} |
| !llvm.module.flags = !{!5} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) |
| !1 = !DIFile(filename: "<stdin>", directory: "/") |
| !2 = !{} |
| !3 = !{i32 7} |
| !4 = !{i32 1} |
| !5 = !{i32 2, !"Debug Info Version", i32 3} |
| !6 = distinct !DISubprogram(name: "dont_count_debug_intrinsics", linkageName: "dont_count_debug_intrinsics", scope: null, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: true, unit: !0, retainedNodes: !8) |
| !7 = !DISubroutineType(types: !2) |
| !8 = !{!9} |
| !9 = !DILocalVariable(name: "1", scope: !6, file: !1, line: 1, type: !10) |
| !10 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned) |
| !11 = !DILocation(line: 1, column: 1, scope: !6) |
