[clang] Attempt to fix buildbot failure (PR #210956)

[via cfe-commits]

llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: eleviant

<details>
<summary>Changes</summary>

Value names are discarded by default on build without asserts.

---
Full diff: https://github.com/llvm/llvm-project/pull/210956.diff


1 Files Affected:

- (modified) clang/test/CodeGen/ptr-subtract-stable.c (+6-7) 


``````````diff
diff --git a/clang/test/CodeGen/ptr-subtract-stable.c b/clang/test/CodeGen/ptr-subtract-stable.c
index 88581fa51c4b1..0782b987c7fec 100644
--- a/clang/test/CodeGen/ptr-subtract-stable.c
+++ b/clang/test/CodeGen/ptr-subtract-stable.c
@@ -1,13 +1,12 @@
-// RUN: %clang -S -emit-llvm -O2 --target=x86_64-windows-msvc -fdefined-pointer-subtraction -fms-extensions %s -o - | FileCheck %s
+// RUN: %clang -S -emit-llvm -O2 --target=x86_64-windows-msvc -fdefined-pointer-subtraction -fno-discard-value-names -fms-extensions %s -o - | FileCheck %s
 
 // Check that pointer subtraction isn't nuw/nsv and sdiv isn't exact
-// CHECK-LABEL: i64 @sub(ptr noundef %p, ptr noundef %q)
+// CHECK:       i64 @sub(ptr noundef %[[P:.*]], ptr noundef %[[Q:.*]])
 // CHECK-NEXT:  entry:
-// CHECK-NEXT:    %sub.ptr.lhs.cast = ptrtoint ptr %p to i64
-// CHECK-NEXT:    %sub.ptr.rhs.cast = ptrtoint ptr %q to i64
-// CHECK-NEXT:    %sub.ptr.sub = sub i64 %sub.ptr.lhs.cast, %sub.ptr.rhs.cast
-// CHECK-NEXT:    %sub.ptr.div = sdiv i64 %sub.ptr.sub, 4
-// CHECK-NEXT:    ret i64 %sub.ptr.div
+// CHECK-NEXT:    %[[PI:.*]] = ptrtoint ptr %[[P]] to i64
+// CHECK-NEXT:    %[[QI:.*]] = ptrtoint ptr %[[Q]] to i64
+// CHECK-NEXT:    %[[SB:.*]] = sub i64 %[[PI]], %[[QI]]
+// CHECK-NEXT:    {{.*}}     = sdiv i64 %[[SB]], 4
 
 __declspec(noinline) long long sub(long* p, long* q) {
   return p - q;

``````````

</details>


https://github.com/llvm/llvm-project/pull/210956