Summary: The current default of appending "_"+entry block label to the new extracted cold function breaks demangling. Change the deliminator from "_" to "." to enable demangling. Because the header block label will be empty for release compile code, use "extracted" after the "." when the label is empty. Additionally, add a mechanism for the client to pass in an alternate suffix applied after the ".", and have the hot cold split pass use "cold."+Count, where the Count is currently 1 but can be used to uniquely number multiple cold functions split out from the same function with D53588. Reviewers: sebpop, hiraditya Subscribers: llvm-commits, erik.pilkington Differential Revision: https://reviews.llvm.org/D53534 llvm-svn: 345178
48 lines
1.4 KiB
LLVM
48 lines
1.4 KiB
LLVM
; RUN: opt < %s -partial-inliner -S | FileCheck %s
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; Function Attrs: nounwind uwtable
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define dso_local i8* @bar(i32 %arg) local_unnamed_addr #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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bb:
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%tmp = icmp slt i32 %arg, 0
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br i1 %tmp, label %bb1, label %bb5
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bb1: ; preds = %bb
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%call26 = invoke i8* @invoke_callee() #2
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to label %cont unwind label %lpad
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lpad: ; preds = %if.end
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%0 = landingpad { i8*, i32 }
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cleanup
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resume { i8*, i32 } undef
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cont:
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br label %bb5
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bb5: ; preds = %bb4, %bb1, %bb
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%retval = phi i8* [ %call26, %cont ], [ undef, %bb]
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ret i8* %retval
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}
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; CHECK-LABEL: @dummy_caller
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; CHECK-LABEL: bb:
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; CHECK-NEXT: [[CALL26LOC:%.*]] = alloca i8*
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; CHECK-LABEL: codeRepl.i:
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; CHECK-NEXT: call void @bar.1.bb1(i8** [[CALL26LOC]])
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define i8* @dummy_caller(i32 %arg) {
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bb:
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%tmp = tail call i8* @bar(i32 %arg)
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ret i8* %tmp
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}
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; CHECK-LABEL: define internal void @bar.1.bb1
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; CHECK-LABEL: bb1:
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; CHECK-NEXT: %call26 = invoke i8* @invoke_callee()
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; CHECK-NEXT: to label %cont unwind label %lpad
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; CHECK-LABEL: cont:
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; CHECK-NEXT: store i8* %call26, i8** %call26.out
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; CHECK-NEXT: br label %bb5.exitStub
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; Function Attrs: nobuiltin
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declare dso_local noalias nonnull i8* @invoke_callee() local_unnamed_addr #1
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declare dso_local i32 @__gxx_personality_v0(...)
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