50da55a585
This patch includes the supporting code that enables always instrumenting the function entry block by default. This patch will NOT the default behavior. It adds a variant bit in the profile version, adds new directives in text profile format, and changes llvm-profdata tool accordingly. This patch is a split of D83024 (https://reviews.llvm.org/D83024) Many test changes from D83024 are also included. Differential Revision: https://reviews.llvm.org/D84261
80 lines
3.8 KiB
LLVM
80 lines
3.8 KiB
LLVM
; Test that instrumentation counter promotion for loops does not fail during
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; compilation for loops that exit to a catchswitch block. In this case, counters
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; do not get promoted out of the loop body.
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; RUN: opt < %s -pgo-instr-gen -instrprof -pgo-instrument-entry=false -do-counter-promotion=true -S | FileCheck %s --check-prefixes=CHECK,NOTENTRY
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; RUN: opt < %s -passes=pgo-instr-gen,instrprof -pgo-instrument-entry=false -do-counter-promotion=true -S | FileCheck %s --check-prefixes=CHECK,NOTENTRY
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; RUN: opt < %s -pgo-instr-gen -instrprof -pgo-instrument-entry=true -do-counter-promotion=true -S | FileCheck %s --check-prefixes=CHECK,ENTRY
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; RUN: opt < %s -passes=pgo-instr-gen,instrprof -pgo-instrument-entry=true -do-counter-promotion=true -S | FileCheck %s --check-prefixes=CHECK,ENTRY
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; Source used to create test:
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;
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; extern void may_throw(int);
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; char buffer[200];
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; void run(int count) {
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; try {
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; for (int i = 0; i < count; ++i) {
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; if (buffer[i] == 0)
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; break;
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; may_throw(i);
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; }
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; }
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; catch (...) {
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; throw;
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; }
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;}
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%eh.ThrowInfo = type { i32, i32, i32, i32 }
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@"?buffer@@3PADA" = dso_local local_unnamed_addr global [200 x i8] zeroinitializer, align 16
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define dso_local void @"?run@@YAXH@Z"(i32 %count) local_unnamed_addr personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
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%cmp = icmp slt i32 %i.0, %count
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br i1 %cmp, label %for.body, label %cleanup
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for.body: ; preds = %for.cond
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; CHECK: for.body:
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; NOTENTRY: %pgocount1 = load i64, i64* getelementptr inbounds ([3 x i64], [3 x i64]* @"__profc_?run@@YAXH@Z", i64 0, i64 0)
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; TENTRY: %pgocount1 = load i64, i64* getelementptr inbounds ([3 x i64], [3 x i64]* @"__profc_?run@@YAXH@Z", i64 0, i64 1)
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; CHECK: %1 = add i64 %pgocount1, 1
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; NOTENTRY: store i64 %1, i64* getelementptr inbounds ([3 x i64], [3 x i64]* @"__profc_?run@@YAXH@Z", i64 0, i64 0)
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; ENTRY: store i64 %1, i64* getelementptr inbounds ([3 x i64], [3 x i64]* @"__profc_?run@@YAXH@Z", i64 0, i64 1)
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%idxprom = zext i32 %i.0 to i64
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%arrayidx = getelementptr inbounds [200 x i8], [200 x i8]* @"?buffer@@3PADA", i64 0, i64 %idxprom
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%0 = load i8, i8* %arrayidx, align 1
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%cmp1 = icmp eq i8 %0, 0
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br i1 %cmp1, label %cleanup, label %if.end
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if.end: ; preds = %for.body
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invoke void @"?may_throw@@YAXH@Z"(i32 %i.0)
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to label %for.inc unwind label %catch.dispatch
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for.inc: ; preds = %if.end
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; CHECK: for.inc:
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; NOTENTRY: %pgocount2 = load i64, i64* getelementptr inbounds ([3 x i64], [3 x i64]* @"__profc_?run@@YAXH@Z", i64 0, i64 1)
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; ENTRY: %pgocount2 = load i64, i64* getelementptr inbounds ([3 x i64], [3 x i64]* @"__profc_?run@@YAXH@Z", i64 0, i64 2)
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; CHECK: %3 = add i64 %pgocount2, 1
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; NOTENTRY: store i64 %3, i64* getelementptr inbounds ([3 x i64], [3 x i64]* @"__profc_?run@@YAXH@Z", i64 0, i64 1)
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; ENTRY: store i64 %3, i64* getelementptr inbounds ([3 x i64], [3 x i64]* @"__profc_?run@@YAXH@Z", i64 0, i64 2)
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%inc = add nuw nsw i32 %i.0, 1
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br label %for.cond
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cleanup: ; preds = %for.body, %for.cond
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ret void
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catch.dispatch: ; preds = %if.end
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%1 = catchswitch within none [label %catch] unwind to caller
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catch: ; preds = %catch.dispatch
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%2 = catchpad within %1 [i8* null, i32 64, i8* null]
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call void @_CxxThrowException(i8* null, %eh.ThrowInfo* null) #2 [ "funclet"(token %2) ]
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unreachable
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}
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declare dso_local void @"?may_throw@@YAXH@Z"(i32)
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declare dso_local void @_CxxThrowException(i8*, %eh.ThrowInfo*)
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declare dso_local i32 @__CxxFrameHandler3(...)
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