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llvm-project/llvm/test/Transforms/GCOVProfiling/function-numbering.ll
Jonas Paulsson dc3875e468 Add parameter extension attributes in various instrumentation passes. 
For the targets that have in their ABI the requirement that arguments and
return values are extended to the full register bitwidth, it is important
that calls when built also take care of this detail.

The OMPIRBuilder, AddressSanitizer, GCOVProfiling, MemorySanitizer and
ThreadSanitizer passes are with this patch hopefully now doing this properly.

Reviewed By: Eli Friedman, Ulrich Weigand, Johannes Doerfert

Differential Revision: https://reviews.llvm.org/D133949
2023-01-18 18:29:12 -06:00

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; Test that GCOV instrumentation numbers functions correctly when some
; functions aren't emitted.
; Inject metadata to set the .gcno file location
; RUN: rm -rf %t && mkdir -p %t
; RUN: echo '!14 = !{!"%/t/function-numbering.ll", !0}' > %t/1
; RUN: cat %s %t/1 > %t/2
; RUN: opt -passes=insert-gcov-profiling -S < %t/2 | FileCheck --check-prefix GCDA %s
; RUN: llvm-cov gcov -n -dump %t/function-numbering.gcno 2>&1 | FileCheck --check-prefix GCNO %s
; RUN: opt -passes=insert-gcov-profiling -S < %t/2 -mtriple=s390x-unknown-linux | FileCheck --check-prefix EXT %s
; RUN: opt -passes=insert-gcov-profiling -S < %t/2 -mtriple=mips-linux-gnu | FileCheck --check-prefix MIPS_EXT %s
; REQUIRES: x86-registered-target, systemz-registered-target, mips-registered-target
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.10.0"
; GCDA: @__llvm_internal_gcov_emit_function_args.0 = internal unnamed_addr constant
; GCDA-SAME: { i32 0,
; GCDA-SAME: { i32 1,
;
; GCDA-LABEL: define internal void @__llvm_gcov_writeout() unnamed_addr #[[#ATTR:]] {
; GCDA-NEXT: entry:
; GCDA-NEXT: br label %[[FILE_LOOP_HEADER:.*]]
;
; GCDA: [[FILE_LOOP_HEADER]]:
; GCDA-NEXT: %[[IV:.*]] = phi i32 [ 0, %entry ], [ %[[NEXT_IV:.*]], %[[FILE_LOOP_LATCH:.*]] ]
; GCDA-NEXT: %[[FILE_INFO:.*]] = getelementptr inbounds {{.*}}, ptr @__llvm_internal_gcov_emit_file_info, i32 0, i32 %[[IV]]
; GCDA-NEXT: %[[START_FILE_ARGS:.*]] = getelementptr inbounds {{.*}}, ptr %[[FILE_INFO]], i32 0, i32 0
; GCDA-NEXT: %[[START_FILE_ARG_0_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[START_FILE_ARGS]], i32 0, i32 0
; GCDA-NEXT: %[[START_FILE_ARG_0:.*]] = load ptr, ptr %[[START_FILE_ARG_0_PTR]]
; GCDA-NEXT: %[[START_FILE_ARG_1_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[START_FILE_ARGS]], i32 0, i32 1
; GCDA-NEXT: %[[START_FILE_ARG_1:.*]] = load i32, ptr %[[START_FILE_ARG_1_PTR]]
; GCDA-NEXT: %[[START_FILE_ARG_2_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[START_FILE_ARGS]], i32 0, i32 2
; GCDA-NEXT: %[[START_FILE_ARG_2:.*]] = load i32, ptr %[[START_FILE_ARG_2_PTR]]
; GCDA-NEXT: call void @llvm_gcda_start_file(ptr %[[START_FILE_ARG_0]], i32 %[[START_FILE_ARG_1]], i32 %[[START_FILE_ARG_2]])
; GCDA-NEXT: %[[NUM_COUNTERS_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[FILE_INFO]], i32 0, i32 1
; GCDA-NEXT: %[[NUM_COUNTERS:.*]] = load i32, ptr %[[NUM_COUNTERS_PTR]]
; GCDA-NEXT: %[[EMIT_FUN_ARGS_ARRAY_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[FILE_INFO]], i32 0, i32 2
; GCDA-NEXT: %[[EMIT_FUN_ARGS_ARRAY:.*]] = load ptr, ptr %[[EMIT_FUN_ARGS_ARRAY_PTR]]
; GCDA-NEXT: %[[EMIT_ARCS_ARGS_ARRAY_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[FILE_INFO]], i32 0, i32 3
; GCDA-NEXT: %[[EMIT_ARCS_ARGS_ARRAY:.*]] = load ptr, ptr %[[EMIT_ARCS_ARGS_ARRAY_PTR]]
; GCDA-NEXT: %[[ENTER_COUNTER_LOOP_COND:.*]] = icmp slt i32 0, %[[NUM_COUNTERS]]
; GCDA-NEXT: br i1 %[[ENTER_COUNTER_LOOP_COND]], label %[[COUNTER_LOOP:.*]], label %[[FILE_LOOP_LATCH]]
;
; GCDA: [[COUNTER_LOOP]]:
; GCDA-NEXT: %[[JV:.*]] = phi i32 [ 0, %[[FILE_LOOP_HEADER]] ], [ %[[NEXT_JV:.*]], %[[COUNTER_LOOP]] ]
; GCDA-NEXT: %[[EMIT_FUN_ARGS:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_FUN_ARGS_ARRAY]], i32 %[[JV]]
; GCDA-NEXT: %[[EMIT_FUN_ARG_0_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_FUN_ARGS]], i32 0, i32 0
; GCDA-NEXT: %[[EMIT_FUN_ARG_0:.*]] = load i32, ptr %[[EMIT_FUN_ARG_0_PTR]]
; GCDA-NEXT: %[[EMIT_FUN_ARG_1_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_FUN_ARGS]], i32 0, i32 1
; GCDA-NEXT: %[[EMIT_FUN_ARG_1:.*]] = load i32, ptr %[[EMIT_FUN_ARG_1_PTR]]
; GCDA-NEXT: %[[EMIT_FUN_ARG_2_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_FUN_ARGS]], i32 0, i32 2
; GCDA-NEXT: %[[EMIT_FUN_ARG_2:.*]] = load i32, ptr %[[EMIT_FUN_ARG_2_PTR]]
; GCDA-NEXT: call void @llvm_gcda_emit_function(i32 %[[EMIT_FUN_ARG_0]],
; GCDA-SAME: i32 %[[EMIT_FUN_ARG_1]],
; GCDA-SAME: i32 %[[EMIT_FUN_ARG_2]])
; GCDA-NEXT: %[[EMIT_ARCS_ARGS:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_ARCS_ARGS_ARRAY]], i32 %[[JV]]
; GCDA-NEXT: %[[EMIT_ARCS_ARG_0_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_ARCS_ARGS]], i32 0, i32 0
; GCDA-NEXT: %[[EMIT_ARCS_ARG_0:.*]] = load i32, ptr %[[EMIT_ARCS_ARG_0_PTR]]
; GCDA-NEXT: %[[EMIT_ARCS_ARG_1_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_ARCS_ARGS]], i32 0, i32 1
; GCDA-NEXT: %[[EMIT_ARCS_ARG_1:.*]] = load ptr, ptr %[[EMIT_ARCS_ARG_1_PTR]]
; GCDA-NEXT: call void @llvm_gcda_emit_arcs(i32 %[[EMIT_ARCS_ARG_0]],
; GCDA-SAME: ptr %[[EMIT_ARCS_ARG_1]])
; GCDA-NEXT: %[[NEXT_JV]] = add i32 %[[JV]], 1
; GCDA-NEXT: %[[COUNTER_LOOP_COND:.*]] = icmp slt i32 %[[NEXT_JV]], %[[NUM_COUNTERS]]
; GCDA-NEXT: br i1 %[[COUNTER_LOOP_COND]], label %[[COUNTER_LOOP]], label %[[FILE_LOOP_LATCH]]
;
; GCDA: [[FILE_LOOP_LATCH]]:
; GCDA-NEXT: call void @llvm_gcda_summary_info()
; GCDA-NEXT: call void @llvm_gcda_end_file()
; GCDA-NEXT: %[[NEXT_IV]] = add i32 %[[IV]], 1
; GCDA-NEXT: %[[FILE_LOOP_COND:.*]] = icmp slt i32 %[[NEXT_IV]], 1
; GCDA-NEXT: br i1 %[[FILE_LOOP_COND]], label %[[FILE_LOOP_HEADER]], label %[[EXIT:.*]]
;
; GCDA: [[EXIT]]:
; GCDA-NEXT: ret void
; GCNO: == foo (0) @
; GCNO-NOT: == bar ({{[0-9]+}}) @
; GCNO: == baz (1) @
; GCDA: declare void @llvm_gcda_start_file(ptr, i32, i32)
; EXT: declare void @llvm_gcda_start_file(ptr, i32 zeroext, i32 zeroext)
; MIPS_EXT: declare void @llvm_gcda_start_file(ptr, i32 signext, i32 signext)
; GCDA: declare void @llvm_gcda_emit_function(i32, i32, i32)
; EXT: declare void @llvm_gcda_emit_function(i32 zeroext, i32 zeroext, i32 zeroext)
; MIPS_EXT: declare void @llvm_gcda_emit_function(i32 signext, i32 signext, i32 signext)
; GCDA: declare void @llvm_gcda_emit_arcs(i32, ptr)
; EXT: declare void @llvm_gcda_emit_arcs(i32 zeroext, ptr)
; MIPS_EXT: declare void @llvm_gcda_emit_arcs(i32 signext, ptr)
define void @foo() !dbg !4 {
ret void, !dbg !12
}
define void @bar() !dbg !7 {
; This function is referenced by the debug info, but no lines have locations.
ret void
}
define void @baz() !dbg !8 {
ret void, !dbg !13
}
; GCDA: attributes #[[#ATTR]] = { noinline nounwind }
!llvm.gcov = !{!14}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!llvm.ident = !{!11}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0 ", isOptimized: false, emissionKind: LineTablesOnly, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: ".../llvm/test/Transforms/GCOVProfiling/function-numbering.ll", directory: "")
!2 = !{}
!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
!5 = !DIFile(filename: ".../llvm/test/Transforms/GCOVProfiling/function-numbering.ll", directory: "")
!6 = !DISubroutineType(types: !2)
!7 = distinct !DISubprogram(name: "bar", line: 2, isLocal: false, isDefinition: true, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, retainedNodes: !2)
!8 = distinct !DISubprogram(name: "baz", line: 3, isLocal: false, isDefinition: true, isOptimized: false, unit: !0, scopeLine: 3, file: !1, scope: !5, type: !6, retainedNodes: !2)
!9 = !{i32 2, !"Dwarf Version", i32 2}
!10 = !{i32 2, !"Debug Info Version", i32 3}
!11 = !{!"clang version 3.6.0 "}
!12 = !DILocation(line: 1, column: 13, scope: !4)
!13 = !DILocation(line: 3, column: 13, scope: !8)
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