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[ARM] Add a first test for the Thumb-2 code size optimization pass.

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While working on a Thumb-2 code size optimization I just realized that we don't have any regression tests for it.

So here's a first test case, I plan to increase the coverage over time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216728 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tilmann Scheller 2014-08-29 15:04:40 +00:00
parent 1f70cb9c14
commit f238c1844e
1 changed files with 12 additions and 0 deletions
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12
test/CodeGen/ARM/thumb2-size-opt.ll Normal file
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; RUN: llc -mtriple=thumbv7-linux-gnueabihf -o - -show-mc-encoding -t2-reduce-limit2=0 %s | FileCheck %s
; RUN: llc -mtriple=thumbv7-linux-gnueabihf -o - -show-mc-encoding %s | FileCheck %s --check-prefix=CHECK-OPT
define i32 @and(i32 %a, i32 %b) nounwind readnone {
; CHECK-LABEL: and:
; CHECK: and.w r{{[0-9]+}}, r{{[0-9]+}}, r{{[0-9]+}} @ encoding: [{{0x..,0x..,0x..,0x..}}]
; CHECK-OPT: ands r{{[0-9]+}}, r{{[0-9]+}} @ encoding: [{{0x..,0x..}}]
entry:
%and = and i32 %b, %a
ret i32 %and
}