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TheRock/compiler/amd-llvm/llvm/test/CodeGen/ARM/segmented-stacks-dynamic.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

65 lines
1.9 KiB
LLVM

; RUN: llc < %s -mtriple=arm-linux-androideabi -mattr=+v4t -verify-machineinstrs | FileCheck %s -check-prefix=ARM-android
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -mattr=+v4t -verify-machineinstrs | FileCheck %s -check-prefix=ARM-linux
; RUN: llc < %s -mtriple=arm-linux-androideabi -mattr=+v4t -filetype=obj
; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -mattr=+v4t -filetype=obj
; Just to prevent the alloca from being optimized away
declare void @dummy_use(ptr, i32)
define i32 @test_basic(i32 %l) #0 {
%mem = alloca i32, i32 %l
call void @dummy_use (ptr %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: test_basic:
; ARM-linux: push {r4, r5}
; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3
; ARM-linux-NEXT: mov r5, sp
; ARM-linux-NEXT: ldr r4, [r4, #4]
; ARM-linux-NEXT: cmp r4, r5
; ARM-linux-NEXT: bls .LBB0_2
; ARM-linux: mov r4, #16
; ARM-linux-NEXT: mov r5, #0
; ARM-linux-NEXT: stmdb sp!, {lr}
; ARM-linux-NEXT: bl __morestack
; ARM-linux-NEXT: ldm sp!, {lr}
; ARM-linux-NEXT: pop {r4, r5}
; ARM-linux-NEXT: bx lr
; ARM-linux: pop {r4, r5}
; ARM-android: test_basic:
; ARM-android: push {r4, r5}
; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3
; ARM-android-NEXT: mov r5, sp
; ARM-android-NEXT: ldr r4, [r4, #252]
; ARM-android-NEXT: cmp r4, r5
; ARM-android-NEXT: bls .LBB0_2
; ARM-android: mov r4, #16
; ARM-android-NEXT: mov r5, #0
; ARM-android-NEXT: stmdb sp!, {lr}
; ARM-android-NEXT: bl __morestack
; ARM-android-NEXT: ldm sp!, {lr}
; ARM-android-NEXT: pop {r4, r5}
; ARM-android-NEXT: bx lr
; ARM-android: pop {r4, r5}
}
attributes #0 = { "split-stack" }