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bc1fd917f0
This removes the -segmented-stacks command line flag in favor of a per-function "split-stack" attribute. Patch by Luqman Aden and Alex Crichton! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205997 91177308-0d34-0410-b5e6-96231b3b80d8
35 lines
1.1 KiB
LLVM
35 lines
1.1 KiB
LLVM
; RUN: llc < %s -mtriple=thumb-linux-androideabi -march=thumb -mcpu=arm1156t2-s -mattr=+thumb2 -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-android
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; RUN: llc < %s -mtriple=thumb-linux-androideabi -march=thumb -mcpu=arm1156t2-s -mattr=+thumb2 -filetype=obj
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; Just to prevent the alloca from being optimized away
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declare void @dummy_use(i32*, i32)
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define void @test_basic() #0 {
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%mem = alloca i32, i32 10
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call void @dummy_use (i32* %mem, i32 10)
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ret void
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; Thumb-android: test_basic:
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; Thumb-android: push {r4, r5}
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; Thumb-android-NEXT: mrc p15, #0, r4, c13, c0, #3
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; Thumb-android-NEXT: mov r5, sp
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; Thumb-android-NEXT: ldr r4, [r4, #252]
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; Thumb-android-NEXT: cmp r4, r5
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; Thumb-android-NEXT: blo .LBB0_2
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; Thumb-android: mov r4, #48
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; Thumb-android-NEXT: mov r5, #0
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; Thumb-android-NEXT: push {lr}
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; Thumb-android-NEXT: bl __morestack
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; Thumb-android-NEXT: ldr lr, [sp], #4
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; Thumb-android-NEXT: pop {r4, r5}
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; Thumb-android-NEXT: bx lr
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; Thumb-android: pop {r4, r5}
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}
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attributes #0 = { "split-stack" }
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