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86ca930dc4
Since D82572, we keep "reference" edges for callback call sites. While not strictly necessary they can improve the traversal order. However, we did not update them properly in case a pass removed the callback call site which caused a verification error (PR46687). With this patch we update these reference edges properly during the invocation of `CallGraphSCCPass::RefreshCallGraph` in non-checking mode. Reviewed By: sdmitriev Differential Revision: https://reviews.llvm.org/D83718
90 lines
3.5 KiB
LLVM
90 lines
3.5 KiB
LLVM
; RUN: opt < %s -instcombine -attributor-cgscc -print-callgraph -disable-output -verify 2>&1 | FileCheck %s
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; CHECK: Call graph node <<null function>><<{{.*}}>> #uses=0
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; CHECK: CS<None> calls function 'dead_fork_call'
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; CHECK: CS<None> calls function 'd'
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; CHECK: CS<None> calls function '__kmpc_fork_call'
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; CHECK: CS<None> calls function 'live_fork_call'
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; CHECK: CS<None> calls function '.omp_outlined..1'
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;
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; CHECK: Call graph node for function: '.omp_outlined..1'<<{{.*}}>> #uses=3
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; CHECK: CS<{{.*}}> calls function 'd'
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;
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; CHECK: Call graph node for function: '__kmpc_fork_call'<<{{.*}}>> #uses=3
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; CHECK: CS<None> calls external node
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;
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; CHECK: Call graph node for function: 'd'<<{{.*}}>> #uses=2
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; CHECK: CS<None> calls external node
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;
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; CHECK: Call graph node for function: 'dead_fork_call'<<{{.*}}>> #uses=1
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;
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; CHECK: Call graph node for function: 'dead_fork_call2'<<{{.*}}>> #uses=0
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; CHECK: CS<{{.*}}> calls function '__kmpc_fork_call'
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; CHECK: CS<None> calls function '.omp_outlined..1'
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;
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; CHECK: Call graph node for function: 'live_fork_call'<<{{.*}}>> #uses=1
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; CHECK: CS<{{.*}}> calls function '__kmpc_fork_call'
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; CHECK: CS<None> calls function '.omp_outlined..1'
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%struct.ident_t = type { i32, i32, i32, i32, i8* }
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@.str = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00", align 1
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@0 = private unnamed_addr global %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 0) }, align 8
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define dso_local void @dead_fork_call() {
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entry:
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br i1 true, label %if.then, label %if.else
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if.then: ; preds = %entry
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br label %if.end
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if.else: ; preds = %entry
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call void @dead_fork_call2()
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call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined..0 to void (i32*, i32*, ...)*))
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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ret void
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}
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define internal void @dead_fork_call2() {
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entry:
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call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined..1 to void (i32*, i32*, ...)*))
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ret void
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}
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define internal void @.omp_outlined..0(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
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entry:
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%.global_tid..addr = alloca i32*, align 8
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%.bound_tid..addr = alloca i32*, align 8
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store i32* %.global_tid., i32** %.global_tid..addr, align 8
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store i32* %.bound_tid., i32** %.bound_tid..addr, align 8
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ret void
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}
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declare !callback !2 void @__kmpc_fork_call(%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...)
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define dso_local void @live_fork_call() {
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entry:
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call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined..1 to void (i32*, i32*, ...)*))
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ret void
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}
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define internal void @.omp_outlined..1(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
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entry:
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%.global_tid..addr = alloca i32*, align 8
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%.bound_tid..addr = alloca i32*, align 8
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store i32* %.global_tid., i32** %.global_tid..addr, align 8
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store i32* %.bound_tid., i32** %.bound_tid..addr, align 8
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call void (...) @d()
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ret void
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}
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declare dso_local void @d(...)
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{!"clang version 11.0.0"}
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!2 = !{!3}
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!3 = !{i64 2, i64 -1, i64 -1, i1 true}
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