[StandardInstrumentation] Annotate loops with the function name

When analyzing pass debug output it is helpful to have the function name
along with the loop name.

Author: annamthomas

llvm/lib/Passes/StandardInstrumentations.cpp

@@ -245,7 +245,8 @@ std::string getIRName(Any IR) {
     return C->getName();
 
   if (const auto *L = unwrapIR<Loop>(IR))
-    return L->getName().str();
+    return "loop %" + L->getName().str() + " in function " +
+           L->getHeader()->getParent()->getName().str();
 
   if (const auto *MF = unwrapIR<MachineFunction>(IR))
     return MF->getName().str();

llvm/test/Transforms/LoopPredication/invalidate-analyses.ll

@@ -5,10 +5,10 @@
 ;       please update this test some other analysis that isn't preserved.
 
 ; CHECK: Running analysis: LazyValueAnalysis on drop_a_wc_and_leave_early
-; CHECK: Running pass: LoopPredicationPass on loop
+; CHECK: Running pass: LoopPredicationPass on loop %loop in function drop_a_wc_and_leave_early
 ; CHECK: Invalidating analysis: LazyValueAnalysis on drop_a_wc_and_leave_early
 ; CHECK: Running analysis: LazyValueAnalysis on drop_a_wc_and_leave
-; CHECK: Running pass: LoopPredicationPass on loop
+; CHECK: Running pass: LoopPredicationPass on loop %loop in function drop_a_wc_and_leave
 ; CHECK: Invalidating analysis: LazyValueAnalysis on drop_a_wc_and_leave
 
 

llvm/test/Transforms/LoopRotate/pr35210.ll

@@ -17,7 +17,7 @@
 ; CHECK-NEXT: Running analysis: TargetLibraryAnalysis on f
 ; CHECK-NEXT: Running analysis: ScalarEvolutionAnalysis on f
 ; CHECK-NEXT: Running analysis: InnerAnalysisManagerProxy{{.*}} on f
-; CHECK-NEXT: Running pass: LoopRotatePass on bb
+; CHECK-NEXT: Running pass: LoopRotatePass on loop %bb in function f
 ; CHECK-NEXT: Folding loop latch bb4 into bb
 ; CHECK-NEXT: Invalidating analysis: PostDominatorTreeAnalysis on f
 ; CHECK-NEXT: Running pass: ADCEPass on f
@@ -36,7 +36,7 @@
 ; MSSA-NEXT: Running analysis: TargetLibraryAnalysis on f
 ; MSSA-NEXT: Running analysis: ScalarEvolutionAnalysis on f
 ; MSSA-NEXT: Running analysis: InnerAnalysisManagerProxy{{.*}} on f
-; MSSA-NEXT: Running pass: LoopRotatePass on bb
+; MSSA-NEXT: Running pass: LoopRotatePass on loop %bb in function f
 ; MSSA-NEXT: Folding loop latch bb4 into bb
 ; MSSA-NEXT: Invalidating analysis: PostDominatorTreeAnalysis on f
 ; MSSA-NEXT: Running pass: ADCEPass on f

llvm/test/Transforms/LoopUnroll/revisit.ll

@@ -33,7 +33,7 @@ l0.0.0.ph:
 l0.0.0:
   %cond.0.0.0 = load volatile i1, ptr %ptr
   br i1 %cond.0.0.0, label %l0.0.0, label %l0.0.1.ph
-; CHECK: LoopFullUnrollPass on l0.0.0
+; CHECK: LoopFullUnrollPass on loop %l0.0.0
 ; CHECK-NOT: LoopFullUnrollPass
 
 l0.0.1.ph:
@@ -42,29 +42,29 @@ l0.0.1.ph:
 l0.0.1:
   %cond.0.0.1 = load volatile i1, ptr %ptr
   br i1 %cond.0.0.1, label %l0.0.1, label %l0.0.latch
-; CHECK: LoopFullUnrollPass on l0.0.1
+; CHECK: LoopFullUnrollPass on loop %l0.0.1
 ; CHECK-NOT: LoopFullUnrollPass
 
 l0.0.latch:
   %cmp = icmp slt i32 %iv.next, 2
   br i1 %cmp, label %l0.0, label %l0.latch
-; CHECK: LoopFullUnrollPass on l0.0
+; CHECK: LoopFullUnrollPass on loop %l0.0
 ; CHECK-NOT: LoopFullUnrollPass
 ;
 ; Unrolling occurs, so we visit what were the inner loops twice over. First we
 ; visit their clones, and then we visit the original loops re-parented.
-; CHECK: LoopFullUnrollPass on l0.0.1.1
+; CHECK: LoopFullUnrollPass on loop %l0.0.1.1 in function full_unroll 
 ; CHECK-NOT: LoopFullUnrollPass
-; CHECK: LoopFullUnrollPass on l0.0.0.1
+; CHECK: LoopFullUnrollPass on loop %l0.0.0.1 in function full_unroll
 ; CHECK-NOT: LoopFullUnrollPass
-; CHECK: LoopFullUnrollPass on l0.0.1
+; CHECK: LoopFullUnrollPass on loop %l0.0.1 in function full_unroll
 ; CHECK-NOT: LoopFullUnrollPass
-; CHECK: LoopFullUnrollPass on l0.0.0
+; CHECK: LoopFullUnrollPass on loop %l0.0.0 in function full_unroll
 ; CHECK-NOT: LoopFullUnrollPass
 
 l0.latch:
   br label %l0
-; CHECK: LoopFullUnrollPass on l0
+; CHECK: LoopFullUnrollPass on loop %l0 in function full_unroll
 ; CHECK-NOT: LoopFullUnrollPass
 
 exit:

llvm/test/Transforms/SimpleLoopUnswitch/nontrivial-unswitch-markloopasdeleted.ll

@@ -17,7 +17,7 @@
 ; SimpleLoopUnswitch not marking the Loop as removed, so we missed clearing
 ; the analysis caches.
 ;
-; CHECK: Running pass: SimpleLoopUnswitchPass on loop_begin
+; CHECK: Running pass: SimpleLoopUnswitchPass on loop %loop_begin in function test6
 ; CHECK-NEXT: Running analysis: OuterAnalysisManagerProxy
 ; CHECK-NEXT: Clearing all analysis results for: loop_a_inner