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test/Transforms/PGOProfile/branch2.ll
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| ; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s --check-prefix=GEN | |||||
| ; RUN: llvm-profdata merge %S/Inputs/branch2.proftext -o %T/branch2.profdata | |||||
| ; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%T/branch2.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_br_2 = private constant [9 x i8] c"test_br_2" | |||||
| define i32 @test_br_2(i32 %i) { | |||||
| entry: | |||||
| ; GEN: entry: | |||||
| ; GEN-NOT: llvm.instrprof.increment | |||||
| %cmp = icmp sgt i32 %i, 0 | |||||
| br i1 %cmp, label %if.then, label %if.else | |||||
| ; USE: br i1 %cmp, label %if.then, label %if.else | |||||
| ; USE-SAME: !prof ![[BW_ENTRY:[0-9]+]] | |||||
| ; USE: ![[BW_ENTRY]] = !{!"branch_weights", i32 1, i32 1} | |||||
| if.then: | |||||
| ; GEN: if.then: | |||||
| ; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @__llvm_profile_name_test_br_2, i32 0, i32 0), i64 29667547796, i32 2, i32 0) | |||||
| %add = add nsw i32 %i, 2 | |||||
| br label %if.end | |||||
| if.else: | |||||
| ; GEN: if.else: | |||||
| ; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @__llvm_profile_name_test_br_2, i32 0, i32 0), i64 29667547796, i32 2, i32 1) | |||||
| %sub = sub nsw i32 %i, 2 | |||||
| br label %if.end | |||||
| if.end: | |||||
| ; GEN: if.end: | |||||
| ; GEN-NOT: llvm.instrprof.increment | |||||
| %retv = phi i32 [ %add, %if.then ], [ %sub, %if.else ] | |||||
| ret i32 %retv | |||||
| ; GEN: ret | |||||
| } | |||||