1 ; RUN: opt -codegenprepare -S < %s | FileCheck %s
3 @exit_addr = constant i8* blockaddress(@gep_unmerging, %exit)
4 @op1_addr = constant i8* blockaddress(@gep_unmerging, %op1)
5 @op2_addr = constant i8* blockaddress(@gep_unmerging, %op2)
6 @op3_addr = constant i8* blockaddress(@gep_unmerging, %op3)
9 define void @gep_unmerging(i1 %pred, i8* %p0) {
11 %table = alloca [256 x i8*]
12 %table_0 = getelementptr [256 x i8*], [256 x i8*]* %table, i64 0, i64 0
13 %table_1 = getelementptr [256 x i8*], [256 x i8*]* %table, i64 0, i64 1
14 %table_2 = getelementptr [256 x i8*], [256 x i8*]* %table, i64 0, i64 2
15 %table_3 = getelementptr [256 x i8*], [256 x i8*]* %table, i64 0, i64 3
16 %exit_a = load i8*, i8** @exit_addr
17 %op1_a = load i8*, i8** @op1_addr
18 %op2_a = load i8*, i8** @op2_addr
19 %op3_a = load i8*, i8** @op3_addr
20 store i8* %exit_a, i8** %table_0
21 store i8* %op1_a, i8** %table_1
22 store i8* %op2_a, i8** %table_2
23 store i8* %op3_a, i8** %table_3
28 ; CHECK-NEXT: %p1_inc2 = getelementptr i8, i8* %p_postinc, i64 2
29 ; CHECK-NEXT: %p1_inc1 = getelementptr i8, i8* %p_postinc, i64 1
30 %p1_inc2 = getelementptr i8, i8* %p_preinc, i64 3
31 %p1_inc1 = getelementptr i8, i8* %p_preinc, i64 2
32 %a10 = load i8, i8* %p_postinc
33 %a11 = load i8, i8* %p1_inc1
34 %a12 = add i8 %a10, %a11
35 store i8 %a12, i8* @dummy
36 br i1 %pred, label %indirectbr, label %exit
40 ; CHECK-NEXT: %p2_inc = getelementptr i8, i8* %p_postinc, i64 1
41 %p2_inc = getelementptr i8, i8* %p_preinc, i64 2
42 %a2 = load i8, i8* %p_postinc
43 store i8 %a2, i8* @dummy
44 br i1 %pred, label %indirectbr, label %exit
47 br i1 %pred, label %indirectbr, label %exit
50 %p_preinc = phi i8* [%p0, %entry], [%p1_inc2, %op1], [%p2_inc, %op2], [%p_postinc, %op3]
51 %p_postinc = getelementptr i8, i8* %p_preinc, i64 1
52 %next_op = load i8, i8* %p_preinc
53 %p_zext = zext i8 %next_op to i64
54 %slot = getelementptr [256 x i8*], [256 x i8*]* %table, i64 0, i64 %p_zext
55 %target = load i8*, i8** %slot
56 indirectbr i8* %target, [label %exit, label %op1, label %op2]