Differential D12781 Diff 41686 test/Transforms/PGOProfile/loop1.ll

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test/Transforms/PGOProfile/loop1.ll

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				; RUN: opt < %s -pgo-instr-gen -S \| FileCheck %s --check-prefix=GEN
				; RUN: llvm-profdata merge %S/Inputs/loop1.proftext -o %T/loop1.profdata
				; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%T/loop1.profdata -S \| FileCheck %s --check-prefix=USE
				target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
				target triple = "x86_64-unknown-linux-gnu"

				; GEN: @__llvm_profile_name_test_simple_for = private constant [15 x i8] c"test_simple_for"

				define i32 @test_simple_for(i32 %n) {
				entry:
				; GEN: entry:
				; GEN-NOT: call void @llvm.instrprof.increment
				br label %for.cond

				for.cond:
				; GEN: for.cond:
				; GEN-NOT: call void @llvm.instrprof.increment
				%i = phi i32 [ 0, %entry ], [ %inc1, %for.inc ]
				%sum = phi i32 [ 1, %entry ], [ %inc, %for.inc ]
				%cmp = icmp slt i32 %i, %n
				br i1 %cmp, label %for.body, label %for.end
				; USE: br i1 %cmp, label %for.body, label %for.end
				; USE-SAME: !prof ![[BW_FOR_COND:[0-9]+]]
				; USE: ![[BW_FOR_COND]] = !{!"branch_weights", i32 96, i32 4}

				for.body:
				; GEN: for.body:
				; GEN-NOT: call void @llvm.instrprof.increment
				%inc = add nsw i32 %sum, 1
				br label %for.inc

				for.inc:
				; GEN: for.inc:
				; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @__llvm_profile_name_test_simple_for, i32 0, i32 0), i64 34137660316, i32 2, i32 0)
				%inc1 = add nsw i32 %i, 1
				br label %for.cond

				for.end:
				; GEN: for.end:
				; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @__llvm_profile_name_test_simple_for, i32 0, i32 0), i64 34137660316, i32 2, i32 1)
				ret i32 %sum
				}