6ac71a0149
This patch introduces a new version for the basic block sections profile as was requested in D158442, while keeping backward compatibility for the old version. The new encoding is as follows: ``` m <module_name> f <function_name_1> <function_name_2>... c <bb_id_1> <bb_id_2> <bb_id_3> c <bb_id_4> <bb_id_5> ... ``` Module name specifier (starting with 'm') is optional and allows distinguishing profiles for internal-linkage functions with the same name. If not specified, profile will be applied to any function with the same name. Function name specifier (starting with 'f') can specify multiple function name aliases. Finally, basic block clusters are specified by 'c' and specify the cluster of basic blocks, and the internal order in which they must be placed in the same section.
67 lines
3.3 KiB
LLVM
67 lines
3.3 KiB
LLVM
;; BB cluster sections error handling
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;; Error handling for version 0:
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; RUN: echo '!dummy1' > %t1
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; RUN: echo '!!1 4' >> %t1
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; RUN: echo '!!1' >> %t1
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; RUN: not --crash llc < %s -O0 -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t1 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR1
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; CHECK-ERROR1: LLVM ERROR: invalid profile {{.*}} at line 3: duplicate basic block id found '1'
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; RUN: echo '!dummy1' > %t2
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; RUN: echo '!!4 0' >> %t2
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; RUN: not --crash llc < %s -O0 -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t2 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR2
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; CHECK-ERROR2: LLVM ERROR: invalid profile {{.*}} at line 2: entry BB (0) does not begin a cluster
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; RUN: echo '!dummy1' > %t3
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; RUN: echo '!!-1' >> %t3
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; RUN: not --crash llc < %s -O0 -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t3 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR3
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; CHECK-ERROR3: LLVM ERROR: invalid profile {{.*}} at line 2: unsigned integer expected: '-1'
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; RUN: echo '!dummy1 /path/to/filename' > %t4
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; RUN: not --crash llc < %s -O0 -mtriple=x86_64 -function-sections -basic-block-sections=%t4 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR4
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; CHECK-ERROR4: LLVM ERROR: invalid profile {{.*}} at line 1: unknown string found: '/path/to/filename'
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; RUN: echo '!dummy2 M=test_dir/test_file' > %t5
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; RUN: echo '!dummy2 M=test_dir/test_file' >> %t5
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; RUN: not --crash llc < %s -O0 -mtriple=x86_64 -function-sections -basic-block-sections=%t5 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR5
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; CHECK-ERROR5: LLVM ERROR: invalid profile {{.*}} at line 2: duplicate profile for function 'dummy2'
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; RUN: echo '!dummy1 M=' > %t6
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; RUN: not --crash llc < %s -O0 -mtriple=x86_64 -function-sections -basic-block-sections=%t6 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR6
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; CHECK-ERROR6: LLVM ERROR: invalid profile {{.*}} at line 1: empty module name specifier
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;;
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;; Error handling for version 1:
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; RUN: echo 'v2' > %t7
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; RUN: not --crash llc < %s -O0 -mtriple=x86_64 -function-sections -basic-block-sections=%t7 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR7
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; CHECK-ERROR7: LLVM ERROR: invalid profile {{.*}} at line 1: invalid profile version: 2
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; RUN: echo 'v1' > %t8
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; RUN: echo '!dummy1' >> %t8
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; RUN: not --crash llc < %s -O0 -mtriple=x86_64 -function-sections -basic-block-sections=%t8 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR8
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; CHECK-ERROR8: LLVM ERROR: invalid profile {{.*}} at line 2: invalid specifier: '!'
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; RUN: echo 'v1' > %t0
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; RUN: echo 'm dummy1/module1 dummy1/module2'
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; RUN: echo 'f dummy1' >> %t9
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; RUN: not --crash llc < %s -O0 -mtriple=x86_64 -function-sections -basic-block-sections=%t8 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR8
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; CHECK-ERROR9: LLVM ERROR: invalid profile {{.*}} at line 2: invalid module name value: 'dummy1/module dummy1/module2'
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define i32 @dummy1(i32 %x, i32 %y, i32 %z) {
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entry:
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%tmp = mul i32 %x, %y
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%tmp2 = add i32 %tmp, %z
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ret i32 %tmp2
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}
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define i32 @dummy2(i32 %x, i32 %y, i32 %z) !dbg !4 {
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entry:
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%tmp = mul i32 %x, %y
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%tmp2 = add i32 %tmp, %z
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ret i32 %tmp2
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1)
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!1 = !DIFile(filename: "test_dir/test_file", directory: "test_dir")
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!2 = !{i32 7, !"Dwarf Version", i32 5}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = distinct !DISubprogram(name: "dummy1", scope: !1, unit: !0)
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