110 lines
4.6 KiB
LLVM
110 lines
4.6 KiB
LLVM
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; REQUIRES: x86_64-linux
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; RUN: opt < %s -passes=pseudo-probe -function-sections -S -o %t
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; RUN: FileCheck %s < %t --check-prefix=CHECK-IL
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; RUN: llc %t -pseudo-probe-for-profiling -stop-after=pseudo-probe-inserter -o - | FileCheck %s --check-prefix=CHECK-MIR
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; RUN: llc %t -pseudo-probe-for-profiling -function-sections -filetype=asm -o %t1
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; RUN: FileCheck %s < %t1 --check-prefix=CHECK-ASM
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; RUN: llc %t -pseudo-probe-for-profiling -function-sections -filetype=obj -o %t2
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; RUN: llvm-objdump --section-headers %t2 | FileCheck %s --check-prefix=CHECK-OBJ
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; RUN: llvm-mc %t1 -filetype=obj -o %t3
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; RUN: llvm-objdump --section-headers %t3 | FileCheck %s --check-prefix=CHECK-OBJ
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;; Check the generation of pseudoprobe intrinsic call.
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@a = dso_local global i32 0, align 4
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define void @foo(i32 %x) !dbg !3 {
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bb0:
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%cmp = icmp eq i32 %x, 0
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; CHECK-IL: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 1, i32 0, i64 -1), !dbg ![[#FAKELINE:]]
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; CHECK-MIR: PSEUDO_PROBE [[#GUID:]], 1, 0, 0
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; CHECK-ASM: .pseudoprobe [[#GUID:]] 1 0 0
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br i1 %cmp, label %bb1, label %bb2
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bb1:
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; CHECK-IL: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 2, i32 0, i64 -1), !dbg ![[#FAKELINE]]
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; CHECK-MIR: PSEUDO_PROBE [[#GUID]], 3, 0, 0
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; CHECK-MIR: PSEUDO_PROBE [[#GUID]], 4, 0, 0
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; CHECK-ASM: .pseudoprobe [[#GUID]] 3 0 0
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; CHECK-ASM: .pseudoprobe [[#GUID]] 4 0 0
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store i32 6, i32* @a, align 4
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br label %bb3
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bb2:
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; CHECK-IL: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 3, i32 0, i64 -1), !dbg ![[#FAKELINE]]
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; CHECK-MIR: PSEUDO_PROBE [[#GUID]], 2, 0, 0
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; CHECK-MIR: PSEUDO_PROBE [[#GUID]], 4, 0, 0
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; CHECK-ASM: .pseudoprobe [[#GUID]] 2 0 0
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; CHECK-ASM: .pseudoprobe [[#GUID]] 4 0 0
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store i32 8, i32* @a, align 4
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br label %bb3
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bb3:
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; CHECK-IL: call void @llvm.pseudoprobe(i64 [[#GUID]], i64 4, i32 0, i64 -1), !dbg ![[#REALLINE:]]
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ret void, !dbg !12
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}
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declare void @bar(i32 %x)
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define internal void @foo2(void (i32)* %f) !dbg !4 {
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entry:
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; CHECK-IL: call void @llvm.pseudoprobe(i64 [[#GUID2:]], i64 1, i32 0, i64 -1)
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; CHECK-MIR: PSEUDO_PROBE [[#GUID2:]], 1, 0, 0
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; CHECK-ASM: .pseudoprobe [[#GUID2:]] 1 0 0
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; Check pseudo_probe metadata attached to the indirect call instruction.
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; CHECK-IL: call void %f(i32 1), !dbg ![[#PROBE0:]]
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; CHECK-MIR: PSEUDO_PROBE [[#GUID2]], 2, 1, 0
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; CHECK-ASM: .pseudoprobe [[#GUID2]] 2 1 0
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call void %f(i32 1), !dbg !13
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; Check pseudo_probe metadata attached to the direct call instruction.
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; CHECK-IL: call void @bar(i32 1), !dbg ![[#PROBE1:]]
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; CHECK-MIR: PSEUDO_PROBE [[#GUID2]], 3, 2, 0
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; CHECK-ASM: .pseudoprobe [[#GUID2]] 3 2 0
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call void @bar(i32 1)
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ret void
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}
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; CHECK-IL: ![[#FOO:]] = distinct !DISubprogram(name: "foo"
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; CHECK-IL: ![[#FAKELINE]] = !DILocation(line: 0, scope: ![[#FOO]])
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; CHECK-IL: ![[#REALLINE]] = !DILocation(line: 2, scope: ![[#FOO]])
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; CHECK-IL: ![[#PROBE0]] = !DILocation(line: 2, column: 20, scope: ![[#SCOPE0:]])
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;; A discriminator of 67108887 which is 0x7200017 in hexdecimal, stands for a direct call probe
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;; with an index of 2.
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; CHECK-IL: ![[#SCOPE0]] = !DILexicalBlockFile(scope: ![[#]], file: ![[#]], discriminator: 119537687)
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; CHECK-IL: ![[#PROBE1]] = !DILocation(line: 0, scope: ![[#SCOPE1:]])
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;; A discriminator of 186646559 which is 0xb20001f in hexdecimal, stands for a direct call probe
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;; with an index of 3.
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; CHECK-IL: ![[#SCOPE1]] = !DILexicalBlockFile(scope: ![[#]], file: ![[#]], discriminator: 186646559)
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; Check the generation of .pseudo_probe_desc section
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; CHECK-ASM: .section .pseudo_probe_desc,"G",@progbits,.pseudo_probe_desc_foo,comdat
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; CHECK-ASM-NEXT: .quad [[#GUID]]
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; CHECK-ASM-NEXT: .quad [[#HASH:]]
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; CHECK-ASM-NEXT: .byte 3
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; CHECK-ASM-NEXT: .ascii "foo"
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; CHECK-ASM-NEXT: .section .pseudo_probe_desc,"G",@progbits,.pseudo_probe_desc_foo2,comdat
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; CHECK-ASM-NEXT: .quad [[#GUID2]]
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; CHECK-ASM-NEXT: .quad [[#HASH2:]]
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; CHECK-ASM-NEXT: .byte 4
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; CHECK-ASM-NEXT: .ascii "foo2"
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; CHECK-OBJ-COUNT-2: .pseudo_probe_desc
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; CHECK-OBJ-COUNT-2: .pseudo_probe
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!9, !10}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1)
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!1 = !DIFile(filename: "test.c", directory: "")
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!2 = !{}
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!3 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !5, unit: !0, retainedNodes: !2)
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!4 = distinct !DISubprogram(name: "foo2", scope: !1, file: !1, line: 2, type: !5, unit: !0, retainedNodes: !2)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7}
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!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = !{i32 2, !"Dwarf Version", i32 4}
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!10 = !{i32 2, !"Debug Info Version", i32 3}
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!11 = !{!"clang version 3.9.0"}
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!12 = !DILocation(line: 2, scope: !3)
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!13 = !DILocation(line: 2, column: 20, scope: !4)
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