1 ; RUN: opt -passes=gvn -S < %s | FileCheck %s
3 target datalayout = "e-p:64:64:64"
6 ; CHECK: entry.end_crit_edge:
7 ; CHECK: %[[INDEX:[a-z0-9.]+]] = sext i32 %x to i64{{$}}
8 ; CHECK: %[[ADDRESS:[a-z0-9.]+]] = getelementptr [100 x i32], ptr @G, i64 0, i64 %[[INDEX]]{{$}}
9 ; CHECK: %n.pre = load i32, ptr %[[ADDRESS]], align 4, !dbg [[N_LOC:![0-9]+]]
10 ; CHECK: br label %end
14 ; CHECK: %n = phi i32 [ %n.pre, %entry.end_crit_edge ], [ %z, %then ], !dbg [[N_LOC]]
17 ; CHECK: [[N_LOC]] = !DILocation(line: 47, column: 1, scope: !{{.*}})
19 @G = external global [100 x i32]
20 define i32 @foo(i32 %x, i32 %z) !dbg !6 {
22 %tobool = icmp eq i32 %z, 0, !dbg !7
23 br i1 %tobool, label %end, label %then, !dbg !7
26 %i = sext i32 %x to i64, !dbg !8
27 %p = getelementptr [100 x i32], ptr @G, i64 0, i64 %i, !dbg !8
28 store i32 %z, ptr %p, !dbg !8
29 br label %end, !dbg !8
32 %j = sext i32 %x to i64, !dbg !9
33 %q = getelementptr [100 x i32], ptr @G, i64 0, i64 %j, !dbg !10
34 %n = load i32, ptr %q, !dbg !11
38 !llvm.module.flags = !{!0, !1, !2}
40 !0 = !{i32 2, !"Dwarf Version", i32 4}
41 !1 = !{i32 2, !"Debug Info Version", i32 3}
42 !2 = !{i32 1, !"PIC Level", i32 2}
45 !4 = !DISubroutineType(types: !3)
46 !5 = !DIFile(filename: "a.cc", directory: "/tmp")
47 !6 = distinct !DISubprogram(name: "foo", scope: !5, file: !5, line: 42, type: !4, isLocal: false, isDefinition: true, scopeLine: 43, flags: DIFlagPrototyped, isOptimized: false, unit: !12, retainedNodes: !3)
48 !7 = !DILocation(line: 43, column: 1, scope: !6)
49 !8 = !DILocation(line: 44, column: 1, scope: !6)
50 !9 = !DILocation(line: 45, column: 1, scope: !6)
51 !10 = !DILocation(line: 46, column: 1, scope: !6)
52 !11 = !DILocation(line: 47, column: 1, scope: !6)
53 !12 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang",
55 isOptimized: true, flags: "-O2",
56 splitDebugFilename: "abc.debug", emissionKind: 2)