Revert "Revert "Inlining: Run the legacy AlwaysInliner before the regular inliner.""

aemerson · aemerson · commit 1a2e77cf9e11 · 2023-10-28T23:21:11.000-07:00
This reverts commit 86bfeb9. This is a long time coming re-application that was originally reverted due to regressions, unrelated to the actual inlining change. These regressions have since been fixed due to another long-in-the-making change of a66051c landing. Original commit message for reference: --- We have several situations where it's beneficial for code size to ensure that every call to always-inline functions are inlined before normal inlining decisions are made. While the normal inliner runs in a "MandatoryOnly" mode to try to do this, it only does it on a per-SCC basis, rather than the whole module. Ensuring that all mandatory inlinings are done before any heuristic based decisions are made just makes sense. Despite being referred to the "legacy" AlwaysInliner pass, it's already necessary for -O0 because the CGSCC inliner is too expensive in compile time to run at -O0. This also fixes an exponential compile time blow up in #59126 Differential Revision: https://reviews.llvm.org/D143624 ---
diff --git a/clang/test/Frontend/optimization-remark-with-hotness-new-pm.c b/clang/test/Frontend/optimization-remark-with-hotness-new-pm.c
@@ -73,7 +73,7 @@ void bar(int x) {
   // THRESHOLD-NOT: hotness
   // NO_PGO: '-fdiagnostics-show-hotness' requires profile-guided optimization information
   // NO_PGO: '-fdiagnostics-hotness-threshold=' requires profile-guided optimization information
-  // expected-remark@+1 {{'foo' inlined into 'bar': always inline attribute at callsite bar:8:10; (hotness:}}
+  // expected-remark@+1 {{'foo' inlined into 'bar' with (cost=always): always inline attribute at callsite bar:8:10; (hotness:}}
   sum += foo(x, x - 2);
 }
 
diff --git a/clang/test/Headers/__clang_hip_math.hip b/clang/test/Headers/__clang_hip_math.hip
diff --git a/clang/test/OpenMP/bug57757.cpp b/clang/test/OpenMP/bug57757.cpp
@@ -32,24 +32,23 @@ void foo() {
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[TMP2:%.*]] = getelementptr inbounds [[STRUCT_KMP_TASK_T:%.*]], ptr [[TMP1]], i64 0, i32 2
 // CHECK-NEXT:    tail call void @llvm.experimental.noalias.scope.decl(metadata [[META13:![0-9]+]])
-// CHECK-NEXT:    tail call void @llvm.experimental.noalias.scope.decl(metadata [[META16:![0-9]+]])
-// CHECK-NEXT:    [[TMP3:%.*]] = load i32, ptr [[TMP2]], align 4, !tbaa [[TBAA18:![0-9]+]], !alias.scope !13, !noalias !16
+// CHECK-NEXT:    [[TMP3:%.*]] = load i32, ptr [[TMP2]], align 4, !tbaa [[TBAA16:![0-9]+]], !alias.scope !13, !noalias !17
 // CHECK-NEXT:    switch i32 [[TMP3]], label [[DOTOMP_OUTLINED__EXIT:%.*]] [
 // CHECK-NEXT:    i32 0, label [[DOTUNTIED_JMP__I:%.*]]
 // CHECK-NEXT:    i32 1, label [[DOTUNTIED_NEXT__I:%.*]]
 // CHECK-NEXT:    ]
 // CHECK:       .untied.jmp..i:
-// CHECK-NEXT:    store i32 1, ptr [[TMP2]], align 4, !tbaa [[TBAA18]], !alias.scope !13, !noalias !16
-// CHECK-NEXT:    [[TMP4:%.*]] = tail call i32 @__kmpc_omp_task(ptr nonnull @[[GLOB1]], i32 [[TMP0]], ptr [[TMP1]]), !noalias !19
+// CHECK-NEXT:    store i32 1, ptr [[TMP2]], align 4, !tbaa [[TBAA16]], !alias.scope !13, !noalias !17
+// CHECK-NEXT:    [[TMP4:%.*]] = tail call i32 @__kmpc_omp_task(ptr nonnull @[[GLOB1]], i32 [[TMP0]], ptr [[TMP1]]), !noalias !13
 // CHECK-NEXT:    br label [[DOTOMP_OUTLINED__EXIT]]
 // CHECK:       .untied.next..i:
 // CHECK-NEXT:    [[TMP5:%.*]] = getelementptr inbounds [[STRUCT_KMP_TASK_T_WITH_PRIVATES:%.*]], ptr [[TMP1]], i64 0, i32 1
 // CHECK-NEXT:    [[TMP6:%.*]] = getelementptr inbounds [[STRUCT_KMP_TASK_T_WITH_PRIVATES]], ptr [[TMP1]], i64 0, i32 1, i32 2
 // CHECK-NEXT:    [[TMP7:%.*]] = getelementptr inbounds [[STRUCT_KMP_TASK_T_WITH_PRIVATES]], ptr [[TMP1]], i64 0, i32 1, i32 1
-// CHECK-NEXT:    [[TMP8:%.*]] = load ptr, ptr [[TMP5]], align 8, !tbaa [[TBAA20:![0-9]+]], !alias.scope !16, !noalias !13
-// CHECK-NEXT:    [[TMP9:%.*]] = load i32, ptr [[TMP7]], align 4, !tbaa [[TBAA18]], !alias.scope !16, !noalias !13
-// CHECK-NEXT:    [[TMP10:%.*]] = load float, ptr [[TMP6]], align 4, !tbaa [[TBAA21:![0-9]+]], !alias.scope !16, !noalias !13
-// CHECK-NEXT:    tail call void [[TMP8]](i32 noundef [[TMP9]], float noundef [[TMP10]]) #[[ATTR2:[0-9]+]], !noalias !19
+// CHECK-NEXT:    [[TMP8:%.*]] = load ptr, ptr [[TMP5]], align 8, !tbaa [[TBAA19:![0-9]+]], !noalias !13
+// CHECK-NEXT:    [[TMP9:%.*]] = load i32, ptr [[TMP7]], align 4, !tbaa [[TBAA16]], !noalias !13
+// CHECK-NEXT:    [[TMP10:%.*]] = load float, ptr [[TMP6]], align 4, !tbaa [[TBAA20:![0-9]+]], !noalias !13
+// CHECK-NEXT:    tail call void [[TMP8]](i32 noundef [[TMP9]], float noundef [[TMP10]]) #[[ATTR2:[0-9]+]], !noalias !13
 // CHECK-NEXT:    br label [[DOTOMP_OUTLINED__EXIT]]
 // CHECK:       .omp_outlined..exit:
 // CHECK-NEXT:    ret i32 0
diff --git a/llvm/lib/Passes/PassBuilderPipelines.cpp b/llvm/lib/Passes/PassBuilderPipelines.cpp
@@ -164,7 +164,7 @@ static cl::opt<bool> EnableModuleInliner("enable-module-inliner",
                                          cl::desc("Enable module inliner"));
 
 static cl::opt<bool> PerformMandatoryInliningsFirst(
-    "mandatory-inlining-first", cl::init(true), cl::Hidden,
+    "mandatory-inlining-first", cl::init(false), cl::Hidden,
     cl::desc("Perform mandatory inlinings module-wide, before performing "
              "inlining"));
 
@@ -1127,6 +1127,8 @@ PassBuilder::buildModuleSimplificationPipeline(OptimizationLevel Level,
   if (EnableSyntheticCounts && !PGOOpt)
     MPM.addPass(SyntheticCountsPropagation());
 
+  MPM.addPass(AlwaysInlinerPass(/*InsertLifetimeIntrinsics=*/true));
+
   if (EnableModuleInliner)
     MPM.addPass(buildModuleInlinerPipeline(Level, Phase));
   else
diff --git a/llvm/test/Other/new-pm-defaults.ll b/llvm/test/Other/new-pm-defaults.ll
@@ -121,6 +121,8 @@
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
 ; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass
 ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: AlwaysInlinerPass
+; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
 ; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass
 ; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
@@ -129,14 +131,12 @@
 ; CHECK-O-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}AAManager
 ; CHECK-O-NEXT: Invalidating analysis: AAManager
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
-; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
 ; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
 ; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis
 ; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph::SCC{{.*}}>
 ; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass
 ; CHECK-O-NEXT: Running pass: InlinerPass
-; CHECK-O-NEXT: Running pass: InlinerPass
 ; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
 ; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
 ; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass on (foo)
diff --git a/llvm/test/Other/new-pm-print-pipeline.ll b/llvm/test/Other/new-pm-print-pipeline.ll
@@ -62,7 +62,7 @@
 ; CHECK-20: cgscc(inline<only-mandatory>,inline),cgscc(inline)
 
 ; RUN: opt -disable-output -disable-verify -print-pipeline-passes -passes='scc-oz-module-inliner' < %s | FileCheck %s --match-full-lines --check-prefixes=CHECK-21
-; CHECK-21: require<globals-aa>,function(invalidate<aa>),require<profile-summary>,cgscc(devirt<4>(inline<only-mandatory>,inline,{{.*}},instcombine{{.*}}))
+; CHECK-21: require<globals-aa>,function(invalidate<aa>),require<profile-summary>,cgscc(devirt<4>(inline,{{.*}},instcombine{{.*}}))
 
 ; RUN: opt -disable-output -disable-verify -print-pipeline-passes -passes='cgscc(function<eager-inv>(no-op-function)),function<eager-inv>(no-op-function)' < %s | FileCheck %s --match-full-lines --check-prefixes=CHECK-22
 ; CHECK-22: cgscc(function<eager-inv>(no-op-function)),function<eager-inv>(no-op-function)
diff --git a/llvm/test/Other/new-pm-thinlto-postlink-defaults.ll b/llvm/test/Other/new-pm-thinlto-postlink-defaults.ll
@@ -61,6 +61,8 @@
 ; CHECK-O-NEXT: Running analysis: TypeBasedAA
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
 ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: AlwaysInlinerPass
+; CHECK-PRELINK-O-NEXT: Running analysis: ProfileSummaryAnalysis
 ; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass
 ; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
@@ -75,7 +77,6 @@
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
 ; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass
 ; CHECK-O-NEXT: Running pass: InlinerPass
-; CHECK-O-NEXT: Running pass: InlinerPass
 ; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
 ; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
 ; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass on (foo)
diff --git a/llvm/test/Other/new-pm-thinlto-postlink-pgo-defaults.ll b/llvm/test/Other/new-pm-thinlto-postlink-pgo-defaults.ll
@@ -50,6 +50,7 @@
 ; CHECK-O-NEXT: Running analysis: LoopAnalysis on foo
 ; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis on foo
 ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: AlwaysInlinerPass
 ; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass
 ; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
@@ -64,7 +65,6 @@
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph::SCC{{.*}}>
 ; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass
 ; CHECK-O-NEXT: Running pass: InlinerPass
-; CHECK-O-NEXT: Running pass: InlinerPass
 ; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
 ; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
 ; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass
diff --git a/llvm/test/Other/new-pm-thinlto-postlink-samplepgo-defaults.ll b/llvm/test/Other/new-pm-thinlto-postlink-samplepgo-defaults.ll
@@ -58,6 +58,8 @@
 ; CHECK-O-NEXT: Running analysis: LoopAnalysis on foo
 ; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis on foo
 ; CHECK-O-NEXT: Running pass: SimplifyCFGPass on foo
+
+; CHECK-O-NEXT: Running pass: AlwaysInlinerPass
 ; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass
 ; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
@@ -71,7 +73,6 @@
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
 ; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass
 ; CHECK-O-NEXT: Running pass: InlinerPass
-; CHECK-O-NEXT: Running pass: InlinerPass
 ; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
 ; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
 ; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass
diff --git a/llvm/test/Other/new-pm-thinlto-prelink-defaults.ll b/llvm/test/Other/new-pm-thinlto-prelink-defaults.ll
@@ -92,6 +92,8 @@
 ; CHECK-O-NEXT: Running analysis: TypeBasedAA
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
 ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: AlwaysInlinerPass
+; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
 ; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass
 ; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
@@ -100,14 +102,12 @@
 ; CHECK-O-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}AAManager
 ; CHECK-O-NEXT: Invalidating analysis: AAManager
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
-; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
 ; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
 ; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis
 ; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
 ; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass
 ; CHECK-O-NEXT: Running pass: InlinerPass
-; CHECK-O-NEXT: Running pass: InlinerPass
 ; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
 ; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
 ; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass on (foo)
diff --git a/llvm/test/Other/new-pm-thinlto-prelink-pgo-defaults.ll b/llvm/test/Other/new-pm-thinlto-prelink-pgo-defaults.ll
@@ -83,6 +83,7 @@
 ; CHECK-O-NEXT: Running pass: PGOIndirectCallPromotion on
 ; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
 ; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis on foo
+; CHECK-O-NEXT: Running pass: AlwaysInlinerPass
 ; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass
 ; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
@@ -97,7 +98,6 @@
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph::SCC{{.*}}>
 ; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass
 ; CHECK-O-NEXT: Running pass: InlinerPass
-; CHECK-O-NEXT: Running pass: InlinerPass
 ; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
 ; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
 ; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass
diff --git a/llvm/test/Other/new-pm-thinlto-prelink-samplepgo-defaults.ll b/llvm/test/Other/new-pm-thinlto-prelink-samplepgo-defaults.ll
@@ -63,6 +63,7 @@
 ; CHECK-O-NEXT: Running analysis: LoopAnalysis on foo
 ; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis on foo
 ; CHECK-O-NEXT: Running pass: SimplifyCFGPass on foo
+; CHECK-O-NEXT: Running pass: AlwaysInlinerPass
 ; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass
 ; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
@@ -76,7 +77,6 @@
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph::SCC{{.*}}>
 ; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass
 ; CHECK-O-NEXT: Running pass: InlinerPass
-; CHECK-O-NEXT: Running pass: InlinerPass
 ; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
 ; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
 ; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass
diff --git a/llvm/test/Transforms/Inline/always-inline-phase-ordering.ll b/llvm/test/Transforms/Inline/always-inline-phase-ordering.ll
@@ -0,0 +1,164 @@
+; RUN: opt --Os -pass-remarks=inline -S < %s 2>&1 | FileCheck %s
+target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
+target triple = "arm64e-apple-macosx13"
+
+; CHECK: remark: <unknown>:0:0: 'wibble' inlined into 'bar.8' with (cost=always): always inline attribute
+; CHECK: remark: <unknown>:0:0: 'wibble' inlined into 'pluto' with (cost=always): always inline attribute
+; CHECK: remark: <unknown>:0:0: 'snork' inlined into 'blam' with (cost=always): always inline attribute
+; CHECK: remark: <unknown>:0:0: 'wobble' inlined into 'blam' with (cost=always): always inline attribute
+; CHECK: remark: <unknown>:0:0: 'wobble' inlined into 'snork' with (cost=always): always inline attribute
+; CHECK: remark: <unknown>:0:0: 'spam' inlined into 'blam' with (cost=65, threshold=75)
+; CHECK: remark: <unknown>:0:0: 'wibble.1' inlined into 'widget' with (cost=30, threshold=75)
+; CHECK: remark: <unknown>:0:0: 'widget' inlined into 'bar.8' with (cost=30, threshold=75)
+; CHECK: remark: <unknown>:0:0: 'barney' inlined into 'wombat' with (cost=30, threshold=75)
+
+define linkonce_odr void @wombat(ptr %arg) #0 {
+bb:
+  call void @barney()
+  ret void
+}
+
+define i1 @foo() {
+bb:
+  call void @wombat(ptr null)
+  unreachable
+}
+
+define linkonce_odr void @pluto() #1 !prof !38 {
+bb:
+  call void @wibble()
+  ret void
+}
+
+; Function Attrs: alwaysinline
+define linkonce_odr void @wibble() #2 {
+bb:
+  call void @widget()
+  ret void
+}
+
+define linkonce_odr void @widget() {
+bb:
+  call void @wibble.1()
+  ret void
+}
+
+define linkonce_odr void @wibble.1() {
+bb:
+  %0 = call i32 @foo.2()
+  call void @blam()
+  ret void
+}
+
+declare i32 @foo.2()
+
+define linkonce_odr void @blam() {
+bb:
+  %tmp = call i32 @snork()
+  %tmpv1 = call ptr @wombat.3()
+  call void @eggs()
+  %tmpv2 = call ptr @wombat.3()
+  ret void
+}
+
+; Function Attrs: alwaysinline
+define linkonce_odr i32 @snork() #2 {
+bb:
+  %tmpv1 = call i32 @spam()
+  %tmpv2 = call i32 @wobble()
+  call void @widget.4(i32 %tmpv2)
+  ret i32 0
+}
+
+declare void @eggs()
+
+declare ptr @wombat.3()
+
+define linkonce_odr i32 @spam() {
+bb:
+  %tmpv1 = call i32 @wombat.6()
+  %tmpv2 = call i64 @wobble.5(i8 0)
+  %tmpv3 = call i64 @bar()
+  ret i32 0
+}
+
+; Function Attrs: alwaysinline
+define linkonce_odr i32 @wobble() #2 {
+bb:
+  %tmpv = call i64 @wobble.5(i8 0)
+  %tmpv1 = call i64 @eggs.7()
+  %tmpv2 = call i64 @wobble.5(i8 0)
+  %tmpv3 = call i64 @eggs.7()
+  %tmpv4 = lshr i64 %tmpv1, 1
+  %tmpv5 = trunc i64 %tmpv4 to i32
+  %tmpv6 = xor i32 %tmpv5, 23
+  ret i32 %tmpv6
+}
+
+declare void @widget.4(i32)
+
+declare i64 @bar()
+
+declare i64 @wobble.5(i8)
+
+declare i32 @wombat.6()
+
+declare i64 @eggs.7()
+
+define linkonce_odr void @barney() {
+bb:
+  call void @bar.8()
+  call void @pluto()
+  unreachable
+}
+
+define linkonce_odr void @bar.8() {
+bb:
+  call void @wibble()
+  ret void
+}
+
+attributes #0 = { "frame-pointer"="non-leaf" }
+attributes #1 = { "target-cpu"="apple-m1" }
+attributes #2 = { alwaysinline }
+
+!llvm.module.flags = !{!0, !1, !30, !31, !32, !36, !37}
+
+!0 = !{i32 2, !"SDK Version", [2 x i32] [i32 13, i32 3]}
+!1 = !{i32 1, !"ProfileSummary", !2}
+!2 = !{!3, !4, !5, !6, !7, !8, !9, !10, !11, !12}
+!3 = !{!"ProfileFormat", !"InstrProf"}
+!4 = !{!"TotalCount", i64 864540306756}
+!5 = !{!"MaxCount", i64 6596759955}
+!6 = !{!"MaxInternalCount", i64 2828618424}
+!7 = !{!"MaxFunctionCount", i64 6596759955}
+!8 = !{!"NumCounts", i64 268920}
+!9 = !{!"NumFunctions", i64 106162}
+!10 = !{!"IsPartialProfile", i64 0}
+!11 = !{!"PartialProfileRatio", double 0.000000e+00}
+!12 = !{!"DetailedSummary", !13}
+!13 = !{!14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !28, !29}
+!14 = !{i32 10000, i64 5109654023, i32 2}
+!15 = !{i32 100000, i64 2480859832, i32 25}
+!16 = !{i32 200000, i64 1566552109, i32 70}
+!17 = !{i32 300000, i64 973667919, i32 140}
+!18 = !{i32 400000, i64 552159773, i32 263}
+!19 = !{i32 500000, i64 353879860, i32 463}
+!20 = !{i32 600000, i64 187122455, i32 799}
+!21 = !{i32 700000, i64 105465980, i32 1419}
+!22 = !{i32 800000, i64 49243829, i32 2620}
+!23 = !{i32 900000, i64 15198227, i32 5898}
+!24 = !{i32 950000, i64 5545670, i32 10696}
+!25 = !{i32 990000, i64 804816, i32 25738}
+!26 = !{i32 999000, i64 73999, i32 53382}
+!27 = !{i32 999900, i64 6530, i32 83503}
+!28 = !{i32 999990, i64 899, i32 110416}
+!29 = !{i32 999999, i64 120, i32 130201}
+!30 = !{i32 7, !"Dwarf Version", i32 4}
+!31 = !{i32 2, !"Debug Info Version", i32 3}
+!32 = !{i32 1, !"wchar_size", i32 4}
+!34 = !{!35}
+!35 = !{i32 0, i1 false}
+!36 = !{i32 8, !"PIC Level", i32 2}
+!37 = !{i32 7, !"frame-pointer", i32 1}
+!38 = !{!"function_entry_count", i64 15128150}

Original file line number	Diff line number	Diff line change
`@@ -73,7 +73,7 @@ void bar(int x) {`
`73`	`73`	`// THRESHOLD-NOT: hotness`
`74`	`74`	`// NO_PGO: '-fdiagnostics-show-hotness' requires profile-guided optimization information`
`75`	`75`	`// NO_PGO: '-fdiagnostics-hotness-threshold=' requires profile-guided optimization information`
`76`		`- // expected-remark@+1 {{'foo' inlined into 'bar': always inline attribute at callsite bar:8:10; (hotness:}}`
	`76`	`+ // expected-remark@+1 {{'foo' inlined into 'bar' with (cost=always): always inline attribute at callsite bar:8:10; (hotness:}}`
`77`	`77`	`sum += foo(x, x - 2);`
`78`	`78`	`}`
`79`	`79`