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authorArnaud A. de Grandmaison <arnaud.degrandmaison@arm.com>2014-10-21 20:10:21 +0000
committerArnaud A. de Grandmaison <arnaud.degrandmaison@arm.com>2014-10-21 20:10:21 +0000
commitece7fe0e16db3e83cc7acd13b04ff8e661dbf475 (patch)
tree8159fffc14e3facf9b09389f2d989e684953c831
parente7bf4299dbae77f7a8bce17b9f2482ac2744ada1 (diff)
downloadbcm5719-llvm-ece7fe0e16db3e83cc7acd13b04ff8e661dbf475.tar.gz
bcm5719-llvm-ece7fe0e16db3e83cc7acd13b04ff8e661dbf475.zip
[PBQP] Add a testcase for r220302: Fix coalescing benefits
llvm-svn: 220316
-rw-r--r--llvm/test/CodeGen/AArch64/PBQP-coalesce-benefit.ll14
1 files changed, 14 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AArch64/PBQP-coalesce-benefit.ll b/llvm/test/CodeGen/AArch64/PBQP-coalesce-benefit.ll
new file mode 100644
index 00000000000..45ac5e65c00
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/PBQP-coalesce-benefit.ll
@@ -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
+}
+
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