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

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llvm-svn: 220316
This commit is contained in:
Arnaud A. de Grandmaison 2014-10-21 20:10:21 +00:00
parent ebf53c54ae
commit 08bfa12a78
1 changed files with 14 additions and 0 deletions
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test/CodeGen/AArch64/PBQP-coalesce-benefit.ll Normal file
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; 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
}