llvm/test/CodeGen/AArch64/arm64-dead-def-frame-index.ll

; RUN: llc -march=arm64 < %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 = alloca i32, i32 4096
  %tmp3 = icmp eq i8* %tmp1, null
  %tmp4 = zext i1 %tmp3 to i32

  ret i32 %tmp4

  ; CHECK-LABEL: test1
  ; CHECK:   adds [[TEMP:[a-z0-9]+]], sp, #4, lsl #12
  ; CHECK:   adds [[TEMP]], [[TEMP]], #15
}
Fix for codegen bug that could cause illegal cmn instruction generation In rare cases the dead definition elimination pass code can cause illegal cmn instructions when it replaces dead registers on instructions that use unmaterialized frame indexes. This patch disables the dead definition optimization for instructions which include frame index operands. rdar://16438284 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206208 91177308-0d34-0410-b5e6-96231b3b80d8 2014-04-14 21:05:05 +00:00			`; RUN: llc -march=arm64 < %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 = alloca i32, i32 4096`
			`%tmp3 = icmp eq i8* %tmp1, null`
			`%tmp4 = zext i1 %tmp3 to i32`

			`ret i32 %tmp4`

			`; CHECK-LABEL: test1`
ARM64: print canonical syntax for add/sub (imm) instructions. Since these instructions only accept a 12-bit immediate, possibly shifted left by 12, the canonical syntax used by the architecture reference manual is "#N {, lsl #12 }". We should accept an immediate that has already been shifted, (e.g. Also, print a comment giving the full addend since it can be helpful. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207633 91177308-0d34-0410-b5e6-96231b3b80d8 2014-04-30 11:19:15 +00:00			`; CHECK: adds [[TEMP:[a-z0-9]+]], sp, #4, lsl #12`
Fix for codegen bug that could cause illegal cmn instruction generation In rare cases the dead definition elimination pass code can cause illegal cmn instructions when it replaces dead registers on instructions that use unmaterialized frame indexes. This patch disables the dead definition optimization for instructions which include frame index operands. rdar://16438284 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206208 91177308-0d34-0410-b5e6-96231b3b80d8 2014-04-14 21:05:05 +00:00			`; CHECK: adds [[TEMP]], [[TEMP]], #15`
			`}`