1; RUN: llvm-profdata merge %S/Inputs/indirectbr.proftext -o %t.profdata 2; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=false -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE 3; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=false -pgo-test-profile-file=%t.profdata -S | opt -S -passes='print<branch-prob>' 2>&1 | FileCheck %s --check-prefix=BRANCHPROB 4; RUN: llvm-profdata merge %S/Inputs/indirectbr_entry.proftext -o %t2.profdata 5 6; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=true -pgo-test-profile-file=%t2.profdata -S | FileCheck %s --check-prefix=USE 7; RUN: opt < %s -passes=pgo-instr-use -pgo-instrument-entry=true -pgo-test-profile-file=%t2.profdata -S | opt -S -passes='print<branch-prob>' 2>&1 | FileCheck %s --check-prefix=BRANCHPROB 8 9target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 10target triple = "x86_64-unknown-linux-gnu" 11 12@foo.table = internal unnamed_addr constant [3 x ptr] [ptr blockaddress(@foo, %return), ptr blockaddress(@foo, %label2), ptr blockaddress(@foo, %label3)], align 16 13 14define i32 @foo(i32 %i) { 15entry: 16 %cmp = icmp ult i32 %i, 3 17 br i1 %cmp, label %if.then, label %return 18 19if.then: 20 %idxprom = zext i32 %i to i64 21 %arrayidx = getelementptr inbounds [3 x ptr], ptr @foo.table, i64 0, i64 %idxprom 22 %0 = load ptr, ptr %arrayidx, align 8 23 indirectbr ptr %0, [label %return, label %label2, label %label3] 24; USE: indirectbr ptr %0, [label %return, label %label2, label %label3] 25; USE-SAME: !prof ![[BW_INDBR:[0-9]+]] 26; USE: ![[BW_INDBR]] = !{!"branch_weights", i32 63, i32 20, i32 5} 27 28label2: 29 br label %return 30 31label3: 32 br label %return 33 34return: 35 %retval.0 = phi i32 [ 3, %label3 ], [ 2, %label2 ], [ 0, %entry ], [ 1, %if.then ] 36 ret i32 %retval.0 37} 38 39; BRANCHPROB: Printing analysis {{.*}} for function 'foo': 40; BRANCHPROB:---- Branch Probabilities ---- 41; BRANCHPROB: edge %entry -> %if.then probability is 0x37c32b17 / 0x80000000 = 43.56% 42; BRANCHPROB: edge %entry -> %return.clone probability is 0x483cd4e9 / 0x80000000 = 56.44% 43; BRANCHPROB: edge %if.then -> %return probability is 0x5ba2e8ba / 0x80000000 = 71.59% 44; BRANCHPROB: edge %if.then -> %label2 probability is 0x1d1745d1 / 0x80000000 = 22.73% 45; BRANCHPROB: edge %if.then -> %label3 probability is 0x0745d174 / 0x80000000 = 5.68% 46; BRANCHPROB: edge %label2 -> %return.clone probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] 47; BRANCHPROB: edge %label3 -> %return.clone probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] 48; BRANCHPROB: edge %return -> %.split probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] 49; BRANCHPROB: edge %return.clone -> %.split probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge] 50 51 52 53