[cfi] Fix LowerBitSets on 32-bit targets.

This code attempts to truncate IntPtrTy to i32, which may be the same
type.

llvm-svn: 256205

1 files changed, 21 insertions, 0 deletions

diff --git a/llvm/test/Transforms/LowerBitSets/pr25902.ll b/llvm/test/Transforms/LowerBitSets/pr25902.ll
new file mode 100644
index 00000000000..b9a1203ec0e
--- /dev/null
+++ b/llvm/test/Transforms/LowerBitSets/pr25902.ll
@@ -0,0 +1,21 @@
+; PR25902: gold plugin crash.
+; RUN: opt -mtriple=i686-pc -S -lowerbitsets < %s
+
+define void @f(void ()* %p) {
+entry:
+  %a = bitcast void ()* %p to i8*, !nosanitize !1
+  %b = call i1 @llvm.bitset.test(i8* %a, metadata !"_ZTSFvvE"), !nosanitize !1
+  ret void
+}
+
+define void @g() {
+entry:
+  ret void
+}
+
+declare i1 @llvm.bitset.test(i8*, metadata)
+
+!llvm.bitsets = !{!0}
+
+!0 = !{!"_ZTSFvvE", void ()* @g, i64 0}
+!1 = !{}