UseListOrder: Handle self-users
Correctly sort self-users (such as PHI nodes). I added a targeted test
in `test/Bitcode/use-list-order.ll` and the final missing RUN line to
tests in `test/Assembly`.
This is part of PR5680.
llvm-svn: 214417
diff --git a/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp b/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp
index 2ac53fe..4ed739e 100644
--- a/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp
+++ b/llvm/lib/Bitcode/Writer/ValueEnumerator.cpp
@@ -166,13 +166,13 @@
// If ID is 4, then expect: 7 6 5 1 2 3.
if (LID < RID) {
- if (RID < ID)
+ if (RID <= ID)
if (!IsGlobalValue) // GlobalValue uses don't get reversed.
return true;
return false;
}
if (RID < LID) {
- if (LID < ID)
+ if (LID <= ID)
if (!IsGlobalValue) // GlobalValue uses don't get reversed.
return false;
return true;
@@ -180,7 +180,7 @@
// LID and RID are equal, so we have different operands of the same user.
// Assume operands are added in order for all instructions.
- if (LID < ID)
+ if (LID <= ID)
if (!IsGlobalValue) // GlobalValue uses don't get reversed.
return LU->getOperandNo() < RU->getOperandNo();
return LU->getOperandNo() > RU->getOperandNo();