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2f69ee6563
This adds a cost model that takes into account the total number of machine instructions to be removed from each region, the number of instructions added by adding a new function with a set of instructions, and the instructions added by handling arguments. Tests not adding flags: llvm/test/Transforms/IROutliner/outlining-cost-model.ll Reviewers: jroelofs, paquette Differential Revision: https://reviews.llvm.org/D87299
72 lines
2.7 KiB
LLVM
72 lines
2.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -verify -iroutliner -ir-outlining-no-cost < %s | FileCheck %s
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; This test makes sure that we do not include debug statements in outlined
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; functions.
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define void @outline_dbg1() {
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; CHECK-LABEL: @outline_dbg1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4
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; CHECK-NEXT: call void @outlined_ir_func_0(i32* [[A]], i32* [[B]], i32* [[C]])
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; CHECK-NEXT: ret void
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;
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entry:
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%a = alloca i32, align 4
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%b = alloca i32, align 4
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%c = alloca i32, align 4
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store i32 2, i32* %a, align 4
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store i32 3, i32* %b, align 4
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call void @llvm.dbg.value(metadata i64 0, metadata !14, metadata !DIExpression()), !dbg !14
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store i32 4, i32* %c, align 4
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%al = load i32, i32* %a
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%bl = load i32, i32* %b
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%cl = load i32, i32* %c
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ret void
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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define void @outline_dbg2() {
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; CHECK-LABEL: @outline_dbg2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4
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; CHECK-NEXT: call void @outlined_ir_func_0(i32* [[A]], i32* [[B]], i32* [[C]])
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; CHECK-NEXT: ret void
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;
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entry:
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%a = alloca i32, align 4
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%b = alloca i32, align 4
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%c = alloca i32, align 4
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store i32 2, i32* %a, align 4
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store i32 3, i32* %b, align 4
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store i32 4, i32* %c, align 4
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%al = load i32, i32* %a
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%bl = load i32, i32* %b
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%cl = load i32, i32* %c
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ret void
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}
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; CHECK: define internal void @outlined_ir_func_0(i32* [[ARG0:%.*]], i32* [[ARG1:%.*]], i32* [[ARG2:%.*]]) #1 {
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; CHECK: entry_to_outline:
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; CHECK-NEXT: store i32 2, i32* [[ARG0]], align 4
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; CHECK-NEXT: store i32 3, i32* [[ARG1]], align 4
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; CHECK-NEXT: store i32 4, i32* [[ARG2]], align 4
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; CHECK-NEXT: [[AL:%.*]] = load i32, i32* [[ARG0]], align 4
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; CHECK-NEXT: [[BL:%.*]] = load i32, i32* [[ARG1]], align 4
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; CHECK-NEXT: [[CL:%.*]] = load i32, i32* [[ARG2]], align 4
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!0 = !DIFile(filename: "foo.c", directory: "/tmp")
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!1 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!5 = distinct !DICompileUnit(language: DW_LANG_C, file: !0, producer: "My Compiler", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !6, retainedTypes: !6, globals: !7)
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!6 = !{}
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!7 = !{}
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!11 = distinct !DISubprogram(name: "func_5", scope: !0, file: !0, line: 117, type: !12, isLocal: true, isDefinition: true, scopeLine: 118, isOptimized: false, unit: !5, retainedNodes: !6)
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!12 = !DISubroutineType(types: !13)
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!13 = !{}
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!14 = !DILocalVariable(name: "p_6", arg: 1, scope: !11, line: 117, type: !1)
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