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| author | Louis Gerbarg <lgg@apple.com> | 2014-04-14 21:05:02 +0000 |
|---|---|---|
| committer | Louis Gerbarg <lgg@apple.com> | 2014-04-14 21:05:02 +0000 |
| commit | 27539d46ccde86358f32226907149083d7a4dcf7 (patch) | |
| tree | d8a6d7051b563f71b6b756a9b2212954e923c0d7 /test | |
| parent | b1138a1313f2ce0cc2b11ff9a642175db32fb915 (diff) | |
| download | llvm-27539d46ccde86358f32226907149083d7a4dcf7.tar.gz llvm-27539d46ccde86358f32226907149083d7a4dcf7.tar.bz2 llvm-27539d46ccde86358f32226907149083d7a4dcf7.tar.xz | |
Add a flag to disable the ARM64DeadRegisterDefinitionsPass
This patch adds a -arm64-dead-def-elimination flag so that it is possible to
disable dead definition elimination. Includes test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206207 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/ARM64/arm64-dead-def-elimination-flag.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/ARM64/arm64-dead-def-elimination-flag.ll b/test/CodeGen/ARM64/arm64-dead-def-elimination-flag.ll new file mode 100644 index 0000000000..babf482769 --- /dev/null +++ b/test/CodeGen/ARM64/arm64-dead-def-elimination-flag.ll @@ -0,0 +1,16 @@ +; RUN: llc -march=arm64 -arm64-dead-def-elimination=false < %s | FileCheck %s + +target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" +target triple = "arm64-apple-ios7.0.0" + +; Function Attrs: nounwind ssp uwtable +define i32 @test1() #0 { + %tmp1 = alloca i8 + %tmp2 = icmp eq i8* %tmp1, null + %tmp3 = zext i1 %tmp2 to i32 + + ret i32 %tmp3 + + ; CHECK-LABEL: test1 + ; CHECK: adds {{x[0-9]+}}, sp, #15 +} |