================
@@ -3,6 +3,9 @@
// RUN: %clang_cc1_cg_arm64_neon -emit-llvm %s
-disable-O0-optnone | opt -S -passes=mem2reg,sroa | FileCheck %s
--check-prefixes=LLVM
// RUN: %if cir-enabled %{%clang_cc1_cg_arm64_neon -fclangir -emit-llvm %s
-disable-O0-optnone | opt -S -passes=mem2reg,sroa | FileCheck %s
--check-prefixes=LLVM %}
// RUN: %if cir-enabled %{%clang_cc1_cg_arm64_neon -fclangir -emit-cir %s
-disable-O0-optnone | FileCheck %s
--check-prefixes=CIR %}
+// Narrowing-subtraction checks use instcombine to fold no-op bitcasts
(LLVM-IC prefix).
+// RUN: %clang_cc1_cg_arm64_neon -emit-llvm %s
-disable-O0-optnone | opt -S -passes=mem2reg,sroa,instcombine | FileCheck %s
--check-prefixes=LLVM-IC
+// RUN: %if cir-enabled %{%clang_cc1_cg_arm64_neon -fclangir -emit-llvm %s
-disable-O0-optnone | opt -S -passes=mem2reg,sroa,instcombine | FileCheck %s
--check-prefixes=LLVM-IC %}
----------------
iamvickynguyen wrote:
I'll create a follow-up PR that applies `instcombine` globally and fix other
checks.
https://github.com/llvm/llvm-project/pull/207115
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