1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
2 ; Make sure GVN doesn't incorrectly think the branch terminating
3 ; bb2 has a constant condition.
4 ; RUN: opt -S -passes=newgvn %s | FileCheck %s
6 @a = common global i32 0
7 @patatino = private unnamed_addr constant [3 x i8] c"0\0A\00"
9 define void @tinkywinky() {
10 ; CHECK-LABEL: define void @tinkywinky() {
12 ; CHECK-NEXT: [[TMP:%.*]] = load i32, ptr @a, align 4
13 ; CHECK-NEXT: [[TMP1:%.*]] = icmp sge i32 [[TMP]], 0
14 ; CHECK-NEXT: br i1 [[TMP1]], label [[BB2:%.*]], label [[BB7:%.*]]
16 ; CHECK-NEXT: [[TMP4:%.*]] = icmp sgt i32 [[TMP]], 0
17 ; CHECK-NEXT: br i1 [[TMP4]], label [[BB5:%.*]], label [[BB7]]
19 ; CHECK-NEXT: [[TMP6:%.*]] = call i32 (ptr, ...) @printf(ptr @patatino)
20 ; CHECK-NEXT: br label [[BB7]]
22 ; CHECK-NEXT: ret void
25 %tmp = load i32, ptr @a
26 %tmp1 = icmp sge i32 %tmp, 0
27 br i1 %tmp1, label %bb2, label %bb7
29 %tmp4 = icmp sgt i32 %tmp, 0
30 br i1 %tmp4, label %bb5, label %bb7
32 %tmp6 = call i32 (ptr, ...) @printf(ptr @patatino)
38 declare i32 @printf(ptr, ...)