1 ; RUN: opt < %s -pgo-instr-gen -pgo-instr-select=true -S | FileCheck %s --check-prefix=GEN 2 ; RUN: opt < %s -passes=pgo-instr-gen -pgo-instr-select=true -S | FileCheck %s --check-prefix=GEN 3 ; RUN: opt < %s -pgo-instr-gen -pgo-instr-select=false -S | FileCheck %s --check-prefix=NOSELECT 4 ; RUN: opt < %s -passes=pgo-instr-gen -pgo-instr-select=false -S | FileCheck %s --check-prefix=NOSELECT 5 ; RUN: llvm-profdata merge %S/Inputs/select1.proftext -o %t.profdata 6 ; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -pgo-instr-select=true -S | FileCheck %s --check-prefix=USE 7 ; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -pgo-instr-select=true -S | FileCheck %s --check-prefix=USE 8 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 9 target triple = "x86_64-unknown-linux-gnu" 10 11 define i32 @test_br_2(i32 %i) { 12 entry: 13 %cmp = icmp sgt i32 %i, 0 14 br i1 %cmp, label %if.then, label %if.else 15 16 if.then: 17 %add = add nsw i32 %i, 2 18 ;GEN: %[[STEP:[0-9]+]] = zext i1 %cmp to i64 19 ;GEN: call void @llvm.instrprof.increment.step({{.*}} i32 3, i32 2, i64 %[[STEP]]) 20 ;NOSELECT-NOT: call void @llvm.instrprof.increment.step 21 %s = select i1 %cmp, i32 %add, i32 0 22 ;USE: select i1 %cmp{{.*}}, !prof ![[BW_ENTRY:[0-9]+]] 23 ;USE: ![[BW_ENTRY]] = !{!"branch_weights", i32 1, i32 3} 24 25 br label %if.end 26 27 if.else: 28 %sub = sub nsw i32 %i, 2 29 br label %if.end 30 31 if.end: 32 %retv = phi i32 [ %add, %if.then ], [ %sub, %if.else ] 33 ret i32 %retv 34 } 35
