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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc --mtriple=loongarch32 --verify-machineinstrs < %s \
; RUN: | FileCheck %s --check-prefix=LA32
; RUN: llc --mtriple=loongarch64 --verify-machineinstrs < %s \
; RUN: | FileCheck %s --check-prefix=LA64
declare void @notdead(ptr)
;; These tests must ensure the stack pointer is restored using the frame
;; pointer
define void @simple_alloca(i32 %n) nounwind {
; LA32-LABEL: simple_alloca:
; LA32: # %bb.0:
; LA32-NEXT: addi.w $sp, $sp, -16
; LA32-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
; LA32-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
; LA32-NEXT: addi.w $fp, $sp, 16
; LA32-NEXT: addi.w $a0, $a0, 15
; LA32-NEXT: addi.w $a1, $zero, -16
; LA32-NEXT: and $a0, $a0, $a1
; LA32-NEXT: sub.w $a0, $sp, $a0
; LA32-NEXT: move $sp, $a0
; LA32-NEXT: bl %plt(notdead)
; LA32-NEXT: addi.w $sp, $fp, -16
; LA32-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
; LA32-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
; LA32-NEXT: addi.w $sp, $sp, 16
; LA32-NEXT: ret
;
; LA64-LABEL: simple_alloca:
; LA64: # %bb.0:
; LA64-NEXT: addi.d $sp, $sp, -16
; LA64-NEXT: st.d $ra, $sp, 8 # 8-byte Folded Spill
; LA64-NEXT: st.d $fp, $sp, 0 # 8-byte Folded Spill
; LA64-NEXT: addi.d $fp, $sp, 16
; LA64-NEXT: bstrpick.d $a0, $a0, 31, 0
; LA64-NEXT: addi.d $a0, $a0, 15
; LA64-NEXT: bstrpick.d $a0, $a0, 32, 4
; LA64-NEXT: slli.d $a0, $a0, 4
; LA64-NEXT: sub.d $a0, $sp, $a0
; LA64-NEXT: move $sp, $a0
; LA64-NEXT: bl %plt(notdead)
; LA64-NEXT: addi.d $sp, $fp, -16
; LA64-NEXT: ld.d $fp, $sp, 0 # 8-byte Folded Reload
; LA64-NEXT: ld.d $ra, $sp, 8 # 8-byte Folded Reload
; LA64-NEXT: addi.d $sp, $sp, 16
; LA64-NEXT: ret
%1 = alloca i8, i32 %n
call void @notdead(ptr %1)
ret void
}
declare ptr @llvm.stacksave()
declare void @llvm.stackrestore(ptr)
define void @scoped_alloca(i32 %n) nounwind {
; LA32-LABEL: scoped_alloca:
; LA32: # %bb.0:
; LA32-NEXT: addi.w $sp, $sp, -16
; LA32-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
; LA32-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
; LA32-NEXT: st.w $s0, $sp, 4 # 4-byte Folded Spill
; LA32-NEXT: addi.w $fp, $sp, 16
; LA32-NEXT: addi.w $a0, $a0, 15
; LA32-NEXT: addi.w $a1, $zero, -16
; LA32-NEXT: and $a0, $a0, $a1
; LA32-NEXT: move $s0, $sp
; LA32-NEXT: sub.w $a0, $sp, $a0
; LA32-NEXT: move $sp, $a0
; LA32-NEXT: bl %plt(notdead)
; LA32-NEXT: move $sp, $s0
; LA32-NEXT: addi.w $sp, $fp, -16
; LA32-NEXT: ld.w $s0, $sp, 4 # 4-byte Folded Reload
; LA32-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
; LA32-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
; LA32-NEXT: addi.w $sp, $sp, 16
; LA32-NEXT: ret
;
; LA64-LABEL: scoped_alloca:
; LA64: # %bb.0:
; LA64-NEXT: addi.d $sp, $sp, -32
; LA64-NEXT: st.d $ra, $sp, 24 # 8-byte Folded Spill
; LA64-NEXT: st.d $fp, $sp, 16 # 8-byte Folded Spill
; LA64-NEXT: st.d $s0, $sp, 8 # 8-byte Folded Spill
; LA64-NEXT: addi.d $fp, $sp, 32
; LA64-NEXT: move $s0, $sp
; LA64-NEXT: bstrpick.d $a0, $a0, 31, 0
; LA64-NEXT: addi.d $a0, $a0, 15
; LA64-NEXT: bstrpick.d $a0, $a0, 32, 4
; LA64-NEXT: slli.d $a0, $a0, 4
; LA64-NEXT: sub.d $a0, $sp, $a0
; LA64-NEXT: move $sp, $a0
; LA64-NEXT: bl %plt(notdead)
; LA64-NEXT: move $sp, $s0
; LA64-NEXT: addi.d $sp, $fp, -32
; LA64-NEXT: ld.d $s0, $sp, 8 # 8-byte Folded Reload
; LA64-NEXT: ld.d $fp, $sp, 16 # 8-byte Folded Reload
; LA64-NEXT: ld.d $ra, $sp, 24 # 8-byte Folded Reload
; LA64-NEXT: addi.d $sp, $sp, 32
; LA64-NEXT: ret
%sp = call ptr @llvm.stacksave()
%addr = alloca i8, i32 %n
call void @notdead(ptr %addr)
call void @llvm.stackrestore(ptr %sp)
ret void
}
declare void @func(ptr, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32)
;; Check that outgoing arguments passed on the stack do not corrupt a
;; variable-sized stack object.
define void @alloca_callframe(i32 %n) nounwind {
; LA32-LABEL: alloca_callframe:
; LA32: # %bb.0:
; LA32-NEXT: addi.w $sp, $sp, -16
; LA32-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
; LA32-NEXT: st.w $fp, $sp, 8 # 4-byte Folded Spill
; LA32-NEXT: addi.w $fp, $sp, 16
; LA32-NEXT: addi.w $a0, $a0, 15
; LA32-NEXT: addi.w $a1, $zero, -16
; LA32-NEXT: and $a0, $a0, $a1
; LA32-NEXT: sub.w $a0, $sp, $a0
; LA32-NEXT: move $sp, $a0
; LA32-NEXT: addi.w $sp, $sp, -16
; LA32-NEXT: ori $a1, $zero, 12
; LA32-NEXT: st.w $a1, $sp, 12
; LA32-NEXT: ori $a1, $zero, 11
; LA32-NEXT: st.w $a1, $sp, 8
; LA32-NEXT: ori $a1, $zero, 10
; LA32-NEXT: st.w $a1, $sp, 4
; LA32-NEXT: ori $a1, $zero, 9
; LA32-NEXT: st.w $a1, $sp, 0
; LA32-NEXT: ori $a1, $zero, 2
; LA32-NEXT: ori $a2, $zero, 3
; LA32-NEXT: ori $a3, $zero, 4
; LA32-NEXT: ori $a4, $zero, 5
; LA32-NEXT: ori $a5, $zero, 6
; LA32-NEXT: ori $a6, $zero, 7
; LA32-NEXT: ori $a7, $zero, 8
; LA32-NEXT: bl %plt(func)
; LA32-NEXT: addi.w $sp, $sp, 16
; LA32-NEXT: addi.w $sp, $fp, -16
; LA32-NEXT: ld.w $fp, $sp, 8 # 4-byte Folded Reload
; LA32-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
; LA32-NEXT: addi.w $sp, $sp, 16
; LA32-NEXT: ret
;
; LA64-LABEL: alloca_callframe:
; LA64: # %bb.0:
; LA64-NEXT: addi.d $sp, $sp, -16
; LA64-NEXT: st.d $ra, $sp, 8 # 8-byte Folded Spill
; LA64-NEXT: st.d $fp, $sp, 0 # 8-byte Folded Spill
; LA64-NEXT: addi.d $fp, $sp, 16
; LA64-NEXT: bstrpick.d $a0, $a0, 31, 0
; LA64-NEXT: addi.d $a0, $a0, 15
; LA64-NEXT: bstrpick.d $a0, $a0, 32, 4
; LA64-NEXT: slli.d $a0, $a0, 4
; LA64-NEXT: sub.d $a0, $sp, $a0
; LA64-NEXT: move $sp, $a0
; LA64-NEXT: addi.d $sp, $sp, -32
; LA64-NEXT: ori $a1, $zero, 12
; LA64-NEXT: st.d $a1, $sp, 24
; LA64-NEXT: ori $a1, $zero, 11
; LA64-NEXT: st.d $a1, $sp, 16
; LA64-NEXT: ori $a1, $zero, 10
; LA64-NEXT: st.d $a1, $sp, 8
; LA64-NEXT: ori $a1, $zero, 9
; LA64-NEXT: st.d $a1, $sp, 0
; LA64-NEXT: ori $a1, $zero, 2
; LA64-NEXT: ori $a2, $zero, 3
; LA64-NEXT: ori $a3, $zero, 4
; LA64-NEXT: ori $a4, $zero, 5
; LA64-NEXT: ori $a5, $zero, 6
; LA64-NEXT: ori $a6, $zero, 7
; LA64-NEXT: ori $a7, $zero, 8
; LA64-NEXT: bl %plt(func)
; LA64-NEXT: addi.d $sp, $sp, 32
; LA64-NEXT: addi.d $sp, $fp, -16
; LA64-NEXT: ld.d $fp, $sp, 0 # 8-byte Folded Reload
; LA64-NEXT: ld.d $ra, $sp, 8 # 8-byte Folded Reload
; LA64-NEXT: addi.d $sp, $sp, 16
; LA64-NEXT: ret
%1 = alloca i8, i32 %n
call void @func(ptr %1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8,
i32 9, i32 10, i32 11, i32 12)
ret void
}
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