| ; REQUIRES: x86_64-linux |
| ; RUN: opt < %s -passes=pseudo-probe -function-sections -S -o %t |
| ; RUN: FileCheck %s < %t --check-prefix=CHECK-IL |
| ; RUN: llc %t -stop-after=pseudo-probe-inserter -o - | FileCheck %s --check-prefix=CHECK-MIR |
| ; RUN: llc %t -function-sections -filetype=asm -o %t1 |
| ; RUN: FileCheck %s < %t1 --check-prefix=CHECK-ASM |
| ; RUN: llc %t -function-sections -filetype=obj -o %t2 |
| ; RUN: llvm-readelf -S -g %t2 | FileCheck %s --check-prefix=CHECK-SEC |
| ; RUN: llvm-mc %t1 -filetype=obj -o %t3 |
| ; RUN: llvm-readelf -S -g %t3 | FileCheck %s --check-prefix=CHECK-SEC |
| |
| ; RUN: llc %t -function-sections -unique-section-names=0 -filetype=obj -o %t4 |
| ; RUN: llvm-readelf -S %t4 | FileCheck %s --check-prefix=CHECK-SEC2 |
| |
| ;; Check the generation of pseudoprobe intrinsic call. |
| |
| @a = dso_local global i32 0, align 4 |
| |
| define void @foo(i32 %x) !dbg !3 { |
| bb0: |
| %cmp = icmp eq i32 %x, 0 |
| ; CHECK-IL-LABEL: void @foo(i32 %x) !dbg ![[#]] { |
| ; CHECK-IL: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 1, i32 0, i64 -1), !dbg ![[#FAKELINE:]] |
| ; CHECK-MIR: PSEUDO_PROBE [[#GUID:]], 1, 0, 0 |
| ; CHECK-ASM: .pseudoprobe [[#GUID:]] 1 0 0 foo |
| br i1 %cmp, label %bb1, label %bb2 |
| |
| bb1: |
| ; CHECK-IL: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 2, i32 0, i64 -1), !dbg ![[#FAKELINE]] |
| ; CHECK-MIR: PSEUDO_PROBE [[#GUID]], 3, 0, 0 |
| ; CHECK-MIR: PSEUDO_PROBE [[#GUID]], 4, 0, 0 |
| ; CHECK-ASM: .pseudoprobe [[#GUID]] 3 0 0 foo |
| ; CHECK-ASM: .pseudoprobe [[#GUID]] 4 0 0 foo |
| store i32 6, ptr @a, align 4 |
| br label %bb3 |
| |
| bb2: |
| ; CHECK-IL: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 3, i32 0, i64 -1), !dbg ![[#FAKELINE]] |
| ; CHECK-MIR: PSEUDO_PROBE [[#GUID]], 2, 0, 0 |
| ; CHECK-MIR: PSEUDO_PROBE [[#GUID]], 4, 0, 0 |
| ; CHECK-ASM: .pseudoprobe [[#GUID]] 2 0 0 foo |
| ; CHECK-ASM: .pseudoprobe [[#GUID]] 4 0 0 foo |
| store i32 8, ptr @a, align 4 |
| br label %bb3 |
| |
| bb3: |
| ; CHECK-IL: call void @llvm.pseudoprobe(i64 [[#GUID]], i64 4, i32 0, i64 -1), !dbg ![[#REALLINE:]] |
| ret void, !dbg !12 |
| } |
| |
| declare void @bar(i32 %x) |
| |
| define internal void @foo2(ptr %f) !dbg !4 { |
| entry: |
| ; CHECK-IL-LABEL: void @foo2(ptr %f) !dbg ![[#]] { |
| ; CHECK-IL: call void @llvm.pseudoprobe(i64 [[#GUID2:]], i64 1, i32 0, i64 -1) |
| ; CHECK-MIR: PSEUDO_PROBE [[#GUID2:]], 1, 0, 0 |
| ; CHECK-ASM: .pseudoprobe [[#GUID2:]] 1 0 0 foo2 |
| ; Check pseudo_probe metadata attached to the indirect call instruction. |
| ; CHECK-IL: call void %f(i32 1), !dbg ![[#PROBE0:]] |
| ; CHECK-MIR: PSEUDO_PROBE [[#GUID2]], 2, 1, 0 |
| ; CHECK-ASM: .pseudoprobe [[#GUID2]] 2 1 0 foo2 |
| call void %f(i32 1), !dbg !13 |
| ; Check pseudo_probe metadata attached to the direct call instruction. |
| ; CHECK-IL: call void @bar(i32 1), !dbg ![[#PROBE1:]] |
| ; CHECK-MIR: PSEUDO_PROBE [[#GUID2]], 3, 2, 0 |
| ; CHECK-ASM: .pseudoprobe [[#GUID2]] 3 2 0 foo2 |
| call void @bar(i32 1) |
| ret void |
| } |
| |
| $foo3 = comdat any |
| |
| define void @foo3(i32 %x) comdat { |
| entry: |
| ret void |
| } |
| |
| ; CHECK-IL: Function Attrs: nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) |
| ; CHECK-IL-NEXT: declare void @llvm.pseudoprobe(i64, i64, i32, i64) |
| |
| ; CHECK-IL: ![[#FOO:]] = distinct !DISubprogram(name: "foo" |
| ; CHECK-IL: ![[#FAKELINE]] = !DILocation(line: 0, scope: ![[#FOO]]) |
| ; CHECK-IL: ![[#REALLINE]] = !DILocation(line: 2, scope: ![[#DISC0:]]) |
| ; CHECK-IL: ![[#DISC0]] = !DILexicalBlockFile(scope: ![[#FOO]], file: ![[#]], discriminator: 0) |
| ; CHECK-IL: ![[#PROBE0]] = !DILocation(line: 2, column: 20, scope: ![[#SCOPE0:]]) |
| ;; A discriminator of 67108887 which is 0x7200017 in hexdecimal, stands for a direct call probe |
| ;; with an index of 2. |
| ; CHECK-IL: ![[#SCOPE0]] = !DILexicalBlockFile(scope: ![[#]], file: ![[#]], discriminator: 119537687) |
| ; CHECK-IL: ![[#PROBE1]] = !DILocation(line: 0, scope: ![[#SCOPE1:]]) |
| ;; A discriminator of 186646559 which is 0xb20001f in hexdecimal, stands for a direct call probe |
| ;; with an index of 3. |
| ; CHECK-IL: ![[#SCOPE1]] = !DILexicalBlockFile(scope: ![[#]], file: ![[#]], discriminator: 186646559) |
| |
| ; Check the generation of .pseudo_probe_desc section |
| ; CHECK-ASM: .section .pseudo_probe_desc,"G",@progbits,.pseudo_probe_desc_foo,comdat |
| ; CHECK-ASM-NEXT: .quad [[#GUID]] |
| ; CHECK-ASM-NEXT: .quad [[#HASH:]] |
| ; CHECK-ASM-NEXT: .byte 3 |
| ; CHECK-ASM-NEXT: .ascii "foo" |
| ; CHECK-ASM-NEXT: .section .pseudo_probe_desc,"G",@progbits,.pseudo_probe_desc_foo2,comdat |
| ; CHECK-ASM-NEXT: .quad [[#GUID2]] |
| ; CHECK-ASM-NEXT: .quad [[#HASH2:]] |
| ; CHECK-ASM-NEXT: .byte 4 |
| ; CHECK-ASM-NEXT: .ascii "foo2" |
| |
| ; CHECK-SEC: [Nr] Name Type {{.*}} ES Flg Lk Inf Al |
| ; CHECK-SEC: [ 3] .text.foo PROGBITS {{.*}} 00 AX 0 0 16 |
| ; CHECK-SEC: [ 5] .text.foo2 PROGBITS {{.*}} 00 AX 0 0 16 |
| ; CHECK-SEC: [ 8] .text.foo3 PROGBITS {{.*}} 00 AXG 0 0 16 |
| ; CHECK-SEC-COUNT-3: .pseudo_probe_desc PROGBITS |
| ; CHECK-SEC: .pseudo_probe PROGBITS {{.*}} 00 L 3 0 1 |
| ; CHECK-SEC-NEXT: .pseudo_probe PROGBITS {{.*}} 00 L 5 0 1 |
| ; CHECK-SEC-NEXT: .pseudo_probe PROGBITS {{.*}} 00 LG 8 0 1 |
| ; CHECK-SEC-NOT: .rela.pseudo_probe |
| |
| ; CHECK-SEC: COMDAT group section [ 7] `.group' [foo3] contains 2 sections: |
| ; CHECK-SEC-NEXT: [Index] Name |
| ; CHECK-SEC-NEXT: [ 8] .text.foo3 |
| ; CHECK-SEC-NEXT: [ 21] .pseudo_probe |
| ; CHECK-SEC-EMPTY: |
| ; CHECK-SEC-NEXT: COMDAT group section [ 10] `.group' [.pseudo_probe_desc_foo] contains 1 sections: |
| ; CHECK-SEC-NEXT: [Index] Name |
| ; CHECK-SEC-NEXT: [ 11] .pseudo_probe_desc |
| ; CHECK-SEC-EMPTY: |
| ; CHECK-SEC-NEXT: COMDAT group section [ 12] `.group' [.pseudo_probe_desc_foo2] contains 1 sections: |
| ; CHECK-SEC-NEXT: [Index] Name |
| ; CHECK-SEC-NEXT: [ 13] .pseudo_probe_desc |
| ; CHECK-SEC-EMPTY: |
| ; CHECK-SEC-NEXT: COMDAT group section [ 14] `.group' [.pseudo_probe_desc_foo3] contains 1 sections: |
| ; CHECK-SEC-NEXT: [Index] Name |
| ; CHECK-SEC-NEXT: [ 15] .pseudo_probe_desc |
| |
| |
| ; CHECK-SEC2: [Nr] Name Type {{.*}} ES Flg Lk Inf Al |
| ; CHECK-SEC2: [ 3] .text PROGBITS {{.*}} 00 AX 0 0 16 |
| ; CHECK-SEC2: [ 5] .text PROGBITS {{.*}} 00 AX 0 0 16 |
| ; CHECK-SEC2: [ 8] .text PROGBITS {{.*}} 00 AXG 0 0 16 |
| ; CHECK-SEC2-COUNT-3: .pseudo_probe_desc PROGBITS |
| ; CHECK-SEC2: .pseudo_probe PROGBITS {{.*}} 00 L 3 0 1 |
| ; CHECK-SEC2-NEXT: .pseudo_probe PROGBITS {{.*}} 00 L 5 0 1 |
| ; CHECK-SEC2-NEXT: .pseudo_probe PROGBITS {{.*}} 00 LG 8 0 1 |
| ; CHECK-SEC2-NOT: .rela.pseudo_probe |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!9, !10} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1) |
| !1 = !DIFile(filename: "test.c", directory: "") |
| !2 = !{} |
| !3 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !5, unit: !0, retainedNodes: !2) |
| !4 = distinct !DISubprogram(name: "foo2", scope: !1, file: !1, line: 2, type: !5, unit: !0, retainedNodes: !2) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{!7} |
| !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !9 = !{i32 2, !"Dwarf Version", i32 4} |
| !10 = !{i32 2, !"Debug Info Version", i32 3} |
| !11 = !{!"clang version 3.9.0"} |
| !12 = !DILocation(line: 2, scope: !14) |
| !13 = !DILocation(line: 2, column: 20, scope: !4) |
| !14 = !DILexicalBlockFile(scope: !3, file: !1, discriminator: 1) |
