From 30d1d86e1de836dce50b4ce350648bb32d94d663 Mon Sep 17 00:00:00 2001 From: Nirav Dave Date: Thu, 21 Feb 2019 16:34:48 +0000 Subject: [PATCH] [PPC] Add store merging testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354595 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/PowerPC/constant-combines.ll | 51 +++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 test/CodeGen/PowerPC/constant-combines.ll diff --git a/test/CodeGen/PowerPC/constant-combines.ll b/test/CodeGen/PowerPC/constant-combines.ll new file mode 100644 index 00000000000..b959dc41fb0 --- /dev/null +++ b/test/CodeGen/PowerPC/constant-combines.ll @@ -0,0 +1,51 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -o - %s | FileCheck --check-prefix=BE %s +; RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -o - %s | FileCheck --check-prefix=LE %s + +define void @fold_constant_stores_loaddr(i8* %i8_ptr) { +; BE-LABEL: fold_constant_stores_loaddr: +; BE: # %bb.0: # %entry +; BE-NEXT: li 4, 0 +; BE-NEXT: std 4, 0(3) +; BE-NEXT: li 4, -86 +; BE-NEXT: stb 4, 0(3) +; BE-NEXT: blr +; +; LE-LABEL: fold_constant_stores_loaddr: +; LE: # %bb.0: # %entry +; LE-NEXT: li 4, 0 +; LE-NEXT: li 5, -86 +; LE-NEXT: std 4, 0(3) +; LE-NEXT: stb 5, 0(3) +; LE-NEXT: blr +entry: + %i64_ptr = bitcast i8* %i8_ptr to i64* + store i64 0, i64* %i64_ptr, align 8 + store i8 170, i8* %i8_ptr, align 1 + ret void +} + + +define void @fold_constant_stores_hiaddr(i8* %i8_ptr) { +; BE-LABEL: fold_constant_stores_hiaddr: +; BE: # %bb.0: # %entry +; BE-NEXT: li 4, 0 +; BE-NEXT: std 4, 0(3) +; BE-NEXT: li 4, -86 +; BE-NEXT: stb 4, 0(3) +; BE-NEXT: blr +; +; LE-LABEL: fold_constant_stores_hiaddr: +; LE: # %bb.0: # %entry +; LE-NEXT: li 4, 0 +; LE-NEXT: li 5, -86 +; LE-NEXT: std 4, 0(3) +; LE-NEXT: stb 5, 0(3) +; LE-NEXT: blr +entry: + %i64_ptr = bitcast i8* %i8_ptr to i64* + store i64 0, i64* %i64_ptr, align 8 + %i8_ptr2 = getelementptr inbounds i8, i8* %i8_ptr, i64 7 + store i8 170, i8* %i8_ptr, align 1 + ret void +} -- 2.40.0