[llvm] r220316 - [PBQP] Add a testcase for r220302: Fix coalescing benefits

[Arnaud A. de Grandmaison]

Author: aadg
Date: Tue Oct 21 15:10:21 2014
New Revision: 220316

URL: http://llvm.org/viewvc/llvm-project?rev=220316&view=rev
Log:
[PBQP] Add a testcase for r220302: Fix coalescing benefits

Added:
    llvm/trunk/test/CodeGen/AArch64/PBQP-coalesce-benefit.ll

Added: llvm/trunk/test/CodeGen/AArch64/PBQP-coalesce-benefit.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/PBQP-coalesce-benefit.ll?rev=220316&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/PBQP-coalesce-benefit.ll (added)
+++ llvm/trunk/test/CodeGen/AArch64/PBQP-coalesce-benefit.ll Tue Oct 21 15:10:21 2014
@@ -0,0 +1,14 @@
+; RUN: llc < %s -verify-machineinstrs -mtriple=aarch64-none-linux-gnu -mcpu=cortex-a57 -mattr=+neon -fp-contract=fast -regalloc=pbqp -pbqp-coalescing | FileCheck %s
+
+; CHECK-LABEL: test:
+define i32 @test(i32 %acc, i32* nocapture readonly %c) {
+entry:
+  %0 = load i32* %c, align 4
+; CHECK-NOT: mov	 w{{[0-9]*}}, w0
+  %add = add nsw i32 %0, %acc
+  %arrayidx1 = getelementptr inbounds i32* %c, i64 1
+  %1 = load i32* %arrayidx1, align 4
+  %add2 = add nsw i32 %add, %1
+  ret i32 %add2
+}
+