[PATCH] D77915: [Debugify] Strip added metadata in the -debugify-each pipeline
Vedant Kumar via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Apr 10 17:15:10 PDT 2020
vsk updated this revision to Diff 256707.
vsk added a comment.
Address review feedback.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D77915/new/
https://reviews.llvm.org/D77915
Files:
llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
llvm/test/Transforms/InstCombine/malloc-free-delete-dbginvar.ll
Index: llvm/test/Transforms/InstCombine/malloc-free-delete-dbginvar.ll
===================================================================
--- /dev/null
+++ llvm/test/Transforms/InstCombine/malloc-free-delete-dbginvar.ll
@@ -0,0 +1,22 @@
+; Check that the instcombine result is the same with/without debug info.
+; This is a regression test for a function taken from malloc-free-delete.ll.
+
+; RUN: opt < %s -instcombine -S > %t.no_dbg.ll
+; RUN: opt < %s -debugify-each -instcombine -S > %t.ll
+; RUN: diff %t.no_dbg.ll %t.ll
+
+declare void @free(i8*)
+
+define void @test12(i32* %foo) minsize {
+entry:
+ %tobool = icmp eq i32* %foo, null
+ br i1 %tobool, label %if.end, label %if.then
+
+if.then: ; preds = %entry
+ %bitcast = bitcast i32* %foo to i8*
+ tail call void @free(i8* %bitcast)
+ br label %if.end
+
+if.end: ; preds = %entry, %if.then
+ ret void
+}
Index: llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
===================================================================
--- llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -2709,7 +2709,7 @@
// If there are more than 2 instructions, check that they are noops
// i.e., they won't hurt the performance of the generated code.
if (FreeInstrBB->size() != 2) {
- for (const Instruction &Inst : *FreeInstrBB) {
+ for (const Instruction &Inst : FreeInstrBB->instructionsWithoutDebug()) {
if (&Inst == &FI || &Inst == FreeInstrBBTerminator)
continue;
auto *Cast = dyn_cast<CastInst>(&Inst);
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