1; RUN: opt -passes='require<profile-summary>,function(codegenprepare)' -S -mtriple=x86_64 < %s | FileCheck %s 2 3@exit_addr = constant ptr blockaddress(@gep_unmerging, %exit) 4@op1_addr = constant ptr blockaddress(@gep_unmerging, %op1) 5@op2_addr = constant ptr blockaddress(@gep_unmerging, %op2) 6@op3_addr = constant ptr blockaddress(@gep_unmerging, %op3) 7@dummy = global i8 0 8 9define void @gep_unmerging(i1 %pred, ptr %p0) { 10entry: 11 %table = alloca [256 x ptr] 12 %table_1 = getelementptr [256 x ptr], ptr %table, i64 0, i64 1 13 %table_2 = getelementptr [256 x ptr], ptr %table, i64 0, i64 2 14 %table_3 = getelementptr [256 x ptr], ptr %table, i64 0, i64 3 15 %exit_a = load ptr, ptr @exit_addr 16 %op1_a = load ptr, ptr @op1_addr 17 %op2_a = load ptr, ptr @op2_addr 18 %op3_a = load ptr, ptr @op3_addr 19 store ptr %exit_a, ptr %table 20 store ptr %op1_a, ptr %table_1 21 store ptr %op2_a, ptr %table_2 22 store ptr %op3_a, ptr %table_3 23 br label %indirectbr 24 25op1: 26; CHECK-LABEL: op1: 27; CHECK-NEXT: %p1_inc2 = getelementptr i8, ptr %p_preinc, i64 3 28; CHECK-NEXT: %p1_inc1 = getelementptr i8, ptr %p_preinc, i64 2 29 %p1_inc2 = getelementptr i8, ptr %p_preinc, i64 3 30 %p1_inc1 = getelementptr i8, ptr %p_preinc, i64 2 31 %a10 = load i8, ptr %p_postinc 32 %a11 = load i8, ptr %p1_inc1 33 %a12 = add i8 %a10, %a11 34 store i8 %a12, ptr @dummy 35 br i1 %pred, label %indirectbr, label %exit 36 37op2: 38; CHECK-LABEL: op2: 39; CHECK-NEXT: %p2_inc = getelementptr i8, ptr %p_preinc, i64 2 40 %p2_inc = getelementptr i8, ptr %p_preinc, i64 2 41 %a2 = load i8, ptr %p_postinc 42 store i8 %a2, ptr @dummy 43 br i1 %pred, label %indirectbr, label %exit 44 45op3: 46 br i1 %pred, label %indirectbr, label %exit 47 48indirectbr: 49 %p_preinc = phi ptr [%p0, %entry], [%p1_inc2, %op1], [%p2_inc, %op2], [%p_postinc, %op3] 50 %p_postinc = getelementptr i8, ptr %p_preinc, i64 1 51 %next_op = load i8, ptr %p_preinc 52 %p_zext = zext i8 %next_op to i64 53 %slot = getelementptr [256 x ptr], ptr %table, i64 0, i64 %p_zext 54 %target = load ptr, ptr %slot 55 indirectbr ptr %target, [label %exit, label %op1, label %op2] 56 57exit: 58 ret void 59} 60