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[MLIR][LLVM] CallSiteLoc without caller scope not translatable #90759

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Merged
merged 1 commit into from
May 2, 2024
Merged

[MLIR][LLVM] CallSiteLoc without caller scope not translatable #90759

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4 changes: 4 additions & 0 deletions mlir/lib/Target/LLVMIR/DebugTranslation.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -406,6 +406,10 @@ llvm::DILocation *DebugTranslation::translateLoc(Location loc,
if (auto callLoc = dyn_cast<CallSiteLoc>(loc)) {
// For callsites, the caller is fed as the inlinedAt for the callee.
auto *callerLoc = translateLoc(callLoc.getCaller(), scope, inlinedAt);
// If the caller scope does not exist, the callsite cannot be represented
// in LLVM (the callee scope may not match the function it is in).
if (!callerLoc)
return nullptr;
llvmLoc = translateLoc(callLoc.getCallee(), nullptr, callerLoc);
// Fallback: Ignore callee if it has no debug scope.
if (!llvmLoc)
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9 changes: 6 additions & 3 deletions mlir/test/Target/LLVMIR/llvmir-debug.mlir
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Expand Up @@ -108,12 +108,15 @@ llvm.func @func_with_debug(%arg: i64) {
// CHECK: call void @func_no_debug(), !dbg ![[NAMED_LOC:[0-9]+]]
llvm.call @func_no_debug() : () -> () loc("named"("foo.mlir":10:10))

// CHECK: call void @func_no_debug(), !dbg ![[CALLSITE_LOC:[0-9]+]]
// CHECK: call void @func_no_debug(), !dbg ![[MY_SOURCE_LOC:[0-9]+]]
llvm.call @func_no_debug() : () -> () loc(callsite("nodebug.cc":3:4 at "mysource.cc":5:6))

// CHECK: call void @func_no_debug(), !dbg ![[CALLSITE_LOC:[0-9]+]]
// CHECK: call void @func_no_debug(), !dbg ![[MY_SOURCE_LOC]]
llvm.call @func_no_debug() : () -> () loc(callsite("nodebug.cc":3:4 at fused<#sp0>["mysource.cc":5:6]))

// CHECK: call void @func_no_debug(), !dbg ![[MY_SOURCE_LOC]]
llvm.call @func_no_debug() : () -> () loc(callsite(callsite(fused<#callee>["nodebug.cc":3:4] at "foo.mlir":2:4) at fused<#sp0>["mysource.cc":5:6]))

// CHECK: call void @func_no_debug(), !dbg ![[FUSED_LOC:[0-9]+]]
llvm.call @func_no_debug() : () -> () loc(fused[callsite(fused<#callee>["mysource.cc":5:6] at "mysource.cc":1:1), "mysource.cc":1:1])

Expand Down Expand Up @@ -153,7 +156,7 @@ llvm.func @empty_types() {
// CHECK: ![[BLOCK_LOC]] = distinct !DILexicalBlock(scope: ![[FUNC_LOC]])
// CHECK: ![[NO_NAME_VAR]] = !DILocalVariable(scope: ![[BLOCK_LOC]])

// CHECK-DAG: ![[CALLSITE_LOC]] = !DILocation(line: 5, column: 6,
// CHECK-DAG: ![[MY_SOURCE_LOC]] = !DILocation(line: 5, column: 6
// CHECK-DAG: ![[FILE_LOC]] = !DILocation(line: 1, column: 2,
// CHECK-DAG: ![[NAMED_LOC]] = !DILocation(line: 10, column: 10
// CHECK-DAG: ![[FUSED_LOC]] = !DILocation(line: 1, column: 1
Expand Down