[PATCH] D35979: [X86] Fix a crash in FEntryInserter Pass.
Manoj Gupta via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Jul 28 11:57:25 PDT 2017
manojgupta updated this revision to Diff 108686.
manojgupta added a comment.
Removed getting DebugLoc from previous instruction based on Dave's comments.
https://reviews.llvm.org/D35979
Files:
lib/CodeGen/FEntryInserter.cpp
test/CodeGen/X86/fentry-insertion.ll
Index: test/CodeGen/X86/fentry-insertion.ll
===================================================================
--- test/CodeGen/X86/fentry-insertion.ll
+++ test/CodeGen/X86/fentry-insertion.ll
@@ -12,5 +12,19 @@
; CHECK: retq
}
-attributes #0 = { "fentry-call"="true" }
+define void @test2() #1 {
+entry:
+ br label %bb1
+bb1:
+ call void @address_taken(i64 ptrtoint (i8* blockaddress(@test2, %bb1) to i64), i32 512)
+ ret void
+; CHECK-LABEL: @test2
+; CHECK: callq __fentry__
+; CHECK-NOT: mcount
+; CHECK: retq
+}
+
+declare void @address_taken(i64, i32) local_unnamed_addr
+attributes #0 = { "fentry-call"="true" }
+attributes #1 = { inlinehint minsize noredzone nounwind optsize sspstrong "fentry-call"="true" }
Index: lib/CodeGen/FEntryInserter.cpp
===================================================================
--- lib/CodeGen/FEntryInserter.cpp
+++ lib/CodeGen/FEntryInserter.cpp
@@ -41,10 +41,8 @@
return false;
auto &FirstMBB = *MF.begin();
- auto &FirstMI = *FirstMBB.begin();
-
auto *TII = MF.getSubtarget().getInstrInfo();
- BuildMI(FirstMBB, FirstMI, FirstMI.getDebugLoc(),
+ BuildMI(FirstMBB, FirstMBB.begin(), DebugLoc(),
TII->get(TargetOpcode::FENTRY_CALL));
return true;
}
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