[llvm] 3041560 - [GVN] Add ptrtoaddr test (NFC)

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2025-10-08T15:57:43+02:00
New Revision: 30415608d7cbe2a9eaae361e359b5b1891f192c9

URL: https://github.com/llvm/llvm-project/commit/30415608d7cbe2a9eaae361e359b5b1891f192c9
DIFF: https://github.com/llvm/llvm-project/commit/30415608d7cbe2a9eaae361e359b5b1891f192c9.diff

LOG: [GVN] Add ptrtoaddr test (NFC)

Added: 
    llvm/test/Transforms/GVN/ptrtoaddr.ll

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/GVN/ptrtoaddr.ll b/llvm/test/Transforms/GVN/ptrtoaddr.ll
new file mode 100644
index 0000000000000..53240f85f6b5f
--- /dev/null
+++ b/llvm/test/Transforms/GVN/ptrtoaddr.ll
@@ -0,0 +1,32 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
+; RUN: opt -S -passes=gvn < %s | FileCheck %s
+
+define i64 @ptrtoaddr_same(ptr %p) {
+; CHECK-LABEL: define i64 @ptrtoaddr_same(
+; CHECK-SAME: ptr [[P:%.*]]) {
+; CHECK-NEXT:    [[I:%.*]] = ptrtoaddr ptr [[P]] to i64
+; CHECK-NEXT:    [[J:%.*]] = ptrtoaddr ptr [[P]] to i64
+; CHECK-NEXT:    [[SUB:%.*]] = sub i64 [[I]], [[J]]
+; CHECK-NEXT:    ret i64 [[SUB]]
+;
+  %i = ptrtoaddr ptr %p to i64
+  %j = ptrtoaddr ptr %p to i64
+  %sub = sub i64 %i, %j
+  ret i64 %sub
+}
+
+; Note that unlike for ptrtoint, it's not possible for ptrtoaddr to 
diff er
+; in result type for the same input.
+define i64 @ptrtoaddr_
diff erent(ptr %p, ptr %p2) {
+; CHECK-LABEL: define i64 @ptrtoaddr_
diff erent(
+; CHECK-SAME: ptr [[P:%.*]], ptr [[P2:%.*]]) {
+; CHECK-NEXT:    [[I:%.*]] = ptrtoaddr ptr [[P]] to i64
+; CHECK-NEXT:    [[J:%.*]] = ptrtoaddr ptr [[P2]] to i64
+; CHECK-NEXT:    [[SUB:%.*]] = sub i64 [[I]], [[J]]
+; CHECK-NEXT:    ret i64 [[SUB]]
+;
+  %i = ptrtoaddr ptr %p to i64
+  %j = ptrtoaddr ptr %p2 to i64
+  %sub = sub i64 %i, %j
+  ret i64 %sub
+}