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Segmented stack LLVM tests for ARM #5

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Segmented stack LLVM tests for ARM #5

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aea385f
Add LLVM segmented stack tests for ARM platform.
neykov Feb 23, 2014
addfe74
Make the tests independent of the host
neykov Feb 24, 2014
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44 changes: 44 additions & 0 deletions test/CodeGen/ARM/segmented-stacks-dynamic.ll
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Original file line number Diff line number Diff line change
@@ -0,0 +1,44 @@
; RUN: llc < %s -mtriple=arm-linux-android -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=ARM-Linux-Android
; RUN: llc < %s -mtriple=arm-linux-android -segmented-stacks -filetype=obj

; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)

define i32 @test_basic(i32 %l) {
%mem = alloca i32, i32 %l
call void @dummy_use (i32* %mem, i32 %l)
%terminate = icmp eq i32 %l, 0
br i1 %terminate, label %true, label %false

true:
ret i32 0

false:
%newlen = sub i32 %l, 1
%retvalue = call i32 @test_basic(i32 %newlen)
ret i32 %retvalue

; ARM-Linux-Android: test_basic:

; ARM-Linux-Android: push {r4, r5}
; ARM-Linux-Android-NEXT: mrc p15, #0, r4, c13, c0, #3
; ARM-Linux-Android-NEXT: mov r5, sp
; ARM-Linux-Android-NEXT: cmp r4, #0
; ARM-Linux-Android-NEXT: mvneq r4, #61440
; ARM-Linux-Android-NEXT: ldreq r4, [r4, #-15]
; ARM-Linux-Android-NEXT: add r4, r4, #252
; ARM-Linux-Android-NEXT: ldr r4, [r4]
; ARM-Linux-Android-NEXT: cmp r4, r5
; ARM-Linux-Android-NEXT: blo .LBB0_2

; ARM-Linux-Android: mov r4, #24
; ARM-Linux-Android-NEXT: mov r5, #0
; ARM-Linux-Android-NEXT: stmdb sp!, {lr}
; ARM-Linux-Android-NEXT: bl __morestack
; ARM-Linux-Android-NEXT: ldm sp!, {lr}
; ARM-Linux-Android-NEXT: pop {r4, r5}
; ARM-Linux-Android-NEXT: mov pc, lr

; ARM-Linux-Android: pop {r4, r5}

}
158 changes: 158 additions & 0 deletions test/CodeGen/ARM/segmented-stacks.ll
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Original file line number Diff line number Diff line change
@@ -0,0 +1,158 @@
; RUN: llc < %s -mtriple=arm-linux-android -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=ARM-Linux-Android

; We used to crash with filetype=obj
; RUN: llc < %s -mtriple=arm-linux-android -segmented-stacks -filetype=obj


; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)

define void @test_basic() {
%mem = alloca i32, i32 10
call void @dummy_use (i32* %mem, i32 10)
ret void

; ARM-Linux-Android: test_basic:

; ARM-Linux-Android: push {r4, r5}
; ARM-Linux-Android-NEXT: mrc p15, #0, r4, c13, c0, #3
; ARM-Linux-Android-NEXT: mov r5, sp
; ARM-Linux-Android-NEXT: cmp r4, #0
; ARM-Linux-Android-NEXT: mvneq r4, #61440
; ARM-Linux-Android-NEXT: ldreq r4, [r4, #-15]
; ARM-Linux-Android-NEXT: add r4, r4, #252
; ARM-Linux-Android-NEXT: ldr r4, [r4]
; ARM-Linux-Android-NEXT: cmp r4, r5
; ARM-Linux-Android-NEXT: blo .LBB0_2

; ARM-Linux-Android: mov r4, #48
; ARM-Linux-Android-NEXT: mov r5, #0
; ARM-Linux-Android-NEXT: stmdb sp!, {lr}
; ARM-Linux-Android-NEXT: bl __morestack
; ARM-Linux-Android-NEXT: ldm sp!, {lr}
; ARM-Linux-Android-NEXT: pop {r4, r5}
; ARM-Linux-Android-NEXT: mov pc, lr

; ARM-Linux-Android: pop {r4, r5}

}

define i32 @test_nested(i32 * nest %closure, i32 %other) {
%addend = load i32 * %closure
%result = add i32 %other, %addend
ret i32 %result

; ARM-Linux-Android: test_nested:

; ARM-Linux-Android: push {r4, r5}
; ARM-Linux-Android-NEXT: mrc p15, #0, r4, c13, c0, #3
; ARM-Linux-Android-NEXT: mov r5, sp
; ARM-Linux-Android-NEXT: cmp r4, #0
; ARM-Linux-Android-NEXT: mvneq r4, #61440
; ARM-Linux-Android-NEXT: ldreq r4, [r4, #-15]
; ARM-Linux-Android-NEXT: add r4, r4, #252
; ARM-Linux-Android-NEXT: ldr r4, [r4]
; ARM-Linux-Android-NEXT: cmp r4, r5
; ARM-Linux-Android-NEXT: blo .LBB1_2

; ARM-Linux-Android: mov r4, #0
; ARM-Linux-Android-NEXT: mov r5, #0
; ARM-Linux-Android-NEXT: stmdb sp!, {lr}
; ARM-Linux-Android-NEXT: bl __morestack
; ARM-Linux-Android-NEXT: ldm sp!, {lr}
; ARM-Linux-Android-NEXT: pop {r4, r5}
; ARM-Linux-Android-NEXT: mov pc, lr

; ARM-Linux-Android: pop {r4, r5}

}

define void @test_large() {
%mem = alloca i32, i32 10000
call void @dummy_use (i32* %mem, i32 0)
ret void

; ARM-Linux-Android: test_large:

; ARM-Linux-Android: push {r4, r5}
; ARM-Linux-Android-NEXT: mrc p15, #0, r4, c13, c0, #3
; ARM-Linux-Android-NEXT: sub r5, sp, #40192
; ARM-Linux-Android-NEXT: cmp r4, #0
; ARM-Linux-Android-NEXT: mvneq r4, #61440
; ARM-Linux-Android-NEXT: ldreq r4, [r4, #-15]
; ARM-Linux-Android-NEXT: add r4, r4, #252
; ARM-Linux-Android-NEXT: ldr r4, [r4]
; ARM-Linux-Android-NEXT: cmp r4, r5
; ARM-Linux-Android-NEXT: blo .LBB2_2

; ARM-Linux-Android: mov r4, #40192
; ARM-Linux-Android-NEXT: mov r5, #0
; ARM-Linux-Android-NEXT: stmdb sp!, {lr}
; ARM-Linux-Android-NEXT: bl __morestack
; ARM-Linux-Android-NEXT: ldm sp!, {lr}
; ARM-Linux-Android-NEXT: pop {r4, r5}
; ARM-Linux-Android-NEXT: mov pc, lr

; ARM-Linux-Android: pop {r4, r5}

}

define fastcc void @test_fastcc() {
%mem = alloca i32, i32 10
call void @dummy_use (i32* %mem, i32 10)
ret void

; ARM-Linux-Android: test_fastcc:

; ARM-Linux-Android: push {r4, r5}
; ARM-Linux-Android-NEXT: mrc p15, #0, r4, c13, c0, #3
; ARM-Linux-Android-NEXT: mov r5, sp
; ARM-Linux-Android-NEXT: cmp r4, #0
; ARM-Linux-Android-NEXT: mvneq r4, #61440
; ARM-Linux-Android-NEXT: ldreq r4, [r4, #-15]
; ARM-Linux-Android-NEXT: add r4, r4, #252
; ARM-Linux-Android-NEXT: ldr r4, [r4]
; ARM-Linux-Android-NEXT: cmp r4, r5
; ARM-Linux-Android-NEXT: blo .LBB3_2

; ARM-Linux-Android: mov r4, #48
; ARM-Linux-Android-NEXT: mov r5, #0
; ARM-Linux-Android-NEXT: stmdb sp!, {lr}
; ARM-Linux-Android-NEXT: bl __morestack
; ARM-Linux-Android-NEXT: ldm sp!, {lr}
; ARM-Linux-Android-NEXT: pop {r4, r5}
; ARM-Linux-Android-NEXT: mov pc, lr

; ARM-Linux-Android: pop {r4, r5}

}

define fastcc void @test_fastcc_large() {
%mem = alloca i32, i32 10000
call void @dummy_use (i32* %mem, i32 0)
ret void

; ARM-Linux-Android: test_fastcc_large:

; ARM-Linux-Android: push {r4, r5}
; ARM-Linux-Android-NEXT: mrc p15, #0, r4, c13, c0, #3
; ARM-Linux-Android-NEXT: sub r5, sp, #40192
; ARM-Linux-Android-NEXT: cmp r4, #0
; ARM-Linux-Android-NEXT: mvneq r4, #61440
; ARM-Linux-Android-NEXT: ldreq r4, [r4, #-15]
; ARM-Linux-Android-NEXT: add r4, r4, #252
; ARM-Linux-Android-NEXT: ldr r4, [r4]
; ARM-Linux-Android-NEXT: cmp r4, r5
; ARM-Linux-Android-NEXT: blo .LBB4_2

; ARM-Linux-Android: mov r4, #40192
; ARM-Linux-Android-NEXT: mov r5, #0
; ARM-Linux-Android-NEXT: stmdb sp!, {lr}
; ARM-Linux-Android-NEXT: bl __morestack
; ARM-Linux-Android-NEXT: ldm sp!, {lr}
; ARM-Linux-Android-NEXT: pop {r4, r5}
; ARM-Linux-Android-NEXT: mov pc, lr

; ARM-Linux-Android: pop {r4, r5}

}
42 changes: 21 additions & 21 deletions test/CodeGen/Thumb/segmented-stacks-dynamic.ll
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
; RUN: llc < %s -mcpu=generic -mtriple=thumb-linux-android -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-Linux-Android
; RUN: llc < %s -mcpu=generic -mtriple=thumb-linux-android -segmented-stacks -filetype=obj
; RUN: llc < %s -mtriple=thumb-unknown-unknown -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-Generic
; RUN: llc < %s -mtriple=thumb-unknown-unknown -segmented-stacks -filetype=obj

; Just to prevent the alloca from being optimized away
declare void @dummy_use(i32*, i32)
Expand All @@ -18,24 +18,24 @@ false:
%retvalue = call i32 @test_basic(i32 %newlen)
ret i32 %retvalue

; Thumb-Linux-Android: test_basic:

; Thumb-Linux-Android: push {r4, r5}
; Thumb-Linux-Android-NEXT: mov r5, sp
; Thumb-Linux-Android-NEXT: ldr r4, .LCPI0_0
; Thumb-Linux-Android-NEXT: ldr r4, [r4]
; Thumb-Linux-Android-NEXT: cmp r4, r5
; Thumb-Linux-Android-NEXT: blo .LBB0_2

; Thumb-Linux-Android: mov r4, #16
; Thumb-Linux-Android-NEXT: mov r5, #0
; Thumb-Linux-Android-NEXT: push {lr}
; Thumb-Linux-Android-NEXT: bl __morestack
; Thumb-Linux-Android-NEXT: pop {r4}
; Thumb-Linux-Android-NEXT: mov lr, r4
; Thumb-Linux-Android-NEXT: pop {r4, r5}
; Thumb-Linux-Android-NEXT: mov pc, lr

; Thumb-Linux-Android: pop {r4, r5}
; Thumb-Generic: test_basic:

; Thumb-Generic: push {r4, r5}
; Thumb-Generic-NEXT: mov r5, sp
; Thumb-Generic-NEXT: ldr r4, .LCPI0_0
; Thumb-Generic-NEXT: ldr r4, [r4]
; Thumb-Generic-NEXT: cmp r4, r5
; Thumb-Generic-NEXT: blo .LBB0_2

; Thumb-Generic: mov r4, #20
; Thumb-Generic-NEXT: mov r5, #0
; Thumb-Generic-NEXT: push {lr}
; Thumb-Generic-NEXT: bl __morestack
; Thumb-Generic-NEXT: pop {r4}
; Thumb-Generic-NEXT: mov lr, r4
; Thumb-Generic-NEXT: pop {r4, r5}
; Thumb-Generic-NEXT: mov pc, lr

; Thumb-Generic: pop {r4, r5}

}
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