| ; RUN: opt -passes=simplifycfg -S < %s | FileCheck %s |
| ; |
| ; Simplified from the following code: |
| ; int foo() { |
| ; if(c) { return a; } else { return b; } |
| ; } |
| define i32 @foo(i32 %c, i32 %a, i32 %b) !dbg !4 { |
| ; CHECK: define i32 @foo({{.*}}) !dbg [[FOO_SUBPROGRAM:![0-9]+]] |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[C:%.*]], 0, !dbg [[DBG_CMP:![0-9]+]] |
| ; CHECK-NEXT: [[A_B:%.*]] = select i1 [[TOBOOL]], i32 [[A:%.*]], i32 [[B:%.*]] |
| ; CHECK-NEXT: ret i32 [[A_B]], !dbg [[DBG_RET:![0-9]+]] |
| ; CHECK: [[DBG_CMP]] = !DILocation(line: 2, column: 1, scope: [[FOO_SUBPROGRAM]]) |
| ; CHECK: [[DBG_RET]] = !DILocation(line: 4, scope: [[FOO_SUBPROGRAM]]) |
| entry: |
| %tobool = icmp ne i32 %c, 0, !dbg !7 |
| br i1 %tobool, label %cond.true, label %cond.false, !dbg !8 |
| |
| cond.true: ; preds = %entry |
| ret i32 %a, !dbg !9 |
| |
| cond.false: ; preds = %entry |
| ret i32 %b, !dbg !10 |
| } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!2, !3} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 16.0.0)", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, nameTableKind: None) |
| !1 = !DIFile(filename: "test.c", directory: "/") |
| !2 = !{i32 7, !"Dwarf Version", i32 5} |
| !3 = !{i32 2, !"Debug Info Version", i32 3} |
| !4 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !5, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !6) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{} |
| !7 = !DILocation(line: 2, column: 1, scope: !4) |
| !8 = !DILocation(line: 3, column: 1, scope: !4) |
| !9 = !DILocation(line: 4, column: 1, scope: !4) |
| !10 = !DILocation(line: 4, column: 2, scope: !4) |
