; RUN: llc -x86-tile-ra=0 -verify-machineinstrs -O3 -use-registers-for-deopt-values -restrict-statepoint-remat=true -pass-remarks-filter=regalloc -pass-remarks-output=%t.yaml -stop-after=greedy -o - < %s 2>&1 | FileCheck %s
; RUN: cat %t.yaml | FileCheck -check-prefix=YAML %s
target triple = "x86_64-unknown-linux-gnu"
;CHECK-NOT: error: ran out of registers during register allocation
;YAML: --- !Missed
;YAML: Pass: regalloc
;YAML: Name: SpillReloadCopies
;YAML: Function: barney
;YAML: Args:
;YAML: - NumSpills: '10'
;YAML: - String: ' spills '
;YAML: - TotalSpillsCost: '7.000000e+00'
;YAML: - String: ' total spills cost '
;YAML: - NumReloads: '7'
;YAML: - String: ' reloads '
;YAML: - TotalReloadsCost: '3.108624e-15'
;YAML: - String: ' total reloads cost '
;YAML: - NumZeroCostFoldedReloads: '20'
;YAML: - String: ' zero cost folded reloads '
;YAML: - String: generated in function
define void @barney(ptr addrspace(1) %arg, double %arg1, double %arg2, double %arg3, double %arg4, double %arg5, double %arg6, double %arg7, double %arg8, double %arg9, double %arg10, double %arg11, double %arg12) gc "statepoint-example" personality ptr @widget {
bb:
%tmp = call coldcc token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr nonnull elementtype(void ()) @blam, i32 0, i32 0, i32 0, i32 0) [ "deopt"(i32 0, i32 1, i32 0, i32 0, i32 0, i32 26, i32 0, i32 0, ptr addrspace(1) %arg, i32 4, double %arg1, i32 7, ptr null, i32 4, double %arg2, i32 7, ptr null, i32 4, double %arg3, i32 7, ptr null, i32 4, double %arg4, i32 7, ptr null, i32 4, double %arg5, i32 7, ptr null, i32 4, double %arg6, i32 7, ptr null, i32 4, double %arg7, i32 7, ptr null, i32 4, double %arg8, i32 7, ptr null, i32 4, double %arg9, i32 7, ptr null, i32 4, double %arg10, i32 7, ptr null, i32 4, double %arg11, i32 7, ptr null, i32 4, double %arg12, i32 7, ptr null, i32 7, ptr null), "gc-live"(ptr addrspace(1) %arg) ]
br i1 undef, label %bb13, label %bb15
bb13: ; preds = %bb
%tmp14 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2, i32 5, ptr nonnull elementtype(i32 (ptr addrspace(1), double, double, double, double, double, double, double, double, double)) @quux, i32 10, i32 0, ptr addrspace(1) nonnull null, double %arg1, double %arg2, double %arg3, double %arg5, double %arg6, double %arg7, double %arg9, double %arg10, double %arg11, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 70, i32 0, i32 26, i32 0, i32 0, ptr addrspace(1) null, i32 4, double %arg1, i32 7, ptr null, i32 4, double %arg2, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 4, double %arg4, i32 7, ptr null, i32 4, double %arg5, i32 7, ptr null, i32 4, double %arg6, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 4, double %arg8, i32 7, ptr null, i32 4, double %arg9, i32 7, ptr null, i32 4, double %arg10, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 4, double %arg12, i32 7, ptr null, i32 7, ptr null), "gc-live"(ptr addrspace(1) null) ]
br label %bb15
bb15: ; preds = %bb13, %bb
%tmp16 = phi double [ %arg4, %bb13 ], [ 1.000000e+00, %bb ]
%tmp17 = phi double [ %arg8, %bb13 ], [ 1.000000e+00, %bb ]
%tmp18 = phi double [ %arg12, %bb13 ], [ 1.000000e+00, %bb ]
br i1 undef, label %bb25, label %bb19
bb19: ; preds = %bb15
%tmp20 = invoke token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 1, i32 16, ptr nonnull elementtype(i32 (i32, ptr addrspace(1), i32)) @eggs, i32 3, i32 0, i32 undef, ptr addrspace(1) nonnull undef, i32 0, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 97, i32 0, i32 26, i32 0, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 0, i32 2, i32 3, i32 0, i32 20, i32 0, i32 0, ptr addrspace(1) undef, i32 4, double %arg1, i32 7, ptr null, i32 4, double %arg2, i32 7, ptr null, i32 4, double %tmp16, i32 7, ptr null, i32 4, double %arg5, i32 7, ptr null, i32 4, double %arg6, i32 7, ptr null, i32 4, double %tmp17, i32 7, ptr null, i32 4, double %arg9, i32 7, ptr null, i32 4, double %arg10, i32 7, ptr null, i32 4, double %tmp18, i32 7, ptr null, i32 7, ptr null), "gc-live"(ptr addrspace(1) undef) ]
to label %bb21 unwind label %bb23
bb21: ; preds = %bb19
%tmp22 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2, i32 5, ptr nonnull elementtype(void (ptr addrspace(1), double, double, double, double, double, double, double, double, double, i32)) @ham, i32 11, i32 0, ptr addrspace(1) nonnull undef, double %arg1, double %arg2, double %tmp16, double %arg5, double %arg6, double %tmp17, double %arg9, double %arg10, double %tmp18, i32 51, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 97, i32 0, i32 26, i32 0, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 7, ptr null, i32 2, i32 2, i32 46, i32 0, i32 20, i32 0, i32 0, ptr addrspace(1) undef, i32 4, double %arg1, i32 7, ptr null, i32 4, double %arg2, i32 7, ptr null, i32 4, double %tmp16, i32 7, ptr null, i32 4, double %arg5, i32 7, ptr null, i32 4, double %arg6, i32 7, ptr null, i32 4, double %tmp17, i32 7, ptr null, i32 4, double %arg9, i32 7, ptr null, i32 4, double %arg10, i32 7, ptr null, i32 4, double %tmp18, i32 7, ptr null, i32 3, i32 51), "gc-live"(ptr addrspace(1) undef) ]
unreachable
bb23: ; preds = %bb19
%tmp24 = landingpad token
cleanup
ret void
bb25: ; preds = %bb15
ret void
}
declare ptr @widget()
declare i32 @quux(ptr addrspace(1), double, double, double, double, double, double, double, double, double)
declare void @blam()
declare i32 @eggs(i32, ptr addrspace(1), i32)
declare void @ham(ptr addrspace(1), double, double, double, double, double, double, double, double, double, i32)
declare token @llvm.experimental.gc.statepoint.p0(i64 , i32 , ptr, i32 , i32 , ...)
;CHECK: body: |
;CHECK: bb.0.bb:
;CHECK: successors: %bb.2(0x40000000), %bb.1(0x40000000)
;CHECK: liveins: $rdi, $xmm0, $xmm1, $xmm2, $xmm3, $xmm4, $xmm5, $xmm6, $xmm7
;CHECK: %55:fr64 = COPY $xmm7
;CHECK: %10:fr64 = COPY $xmm6
;CHECK: %45:fr64 = COPY $xmm5
;CHECK: %52:fr64 = COPY $xmm4
;CHECK: %59:fr64 = COPY $xmm3
;CHECK: %6:fr64 = COPY $xmm2
;CHECK: %64:fr64 = COPY $xmm1
;CHECK: %68:fr64 = COPY $xmm0
;CHECK: %3:gr64 = COPY $rdi
;CHECK: %82:fr64 = MOVSDrm_alt %fixed-stack.0, 1, $noreg, 0, $noreg :: (load (s64) from %fixed-stack.0)
;CHECK: %14:fr64 = MOVSDrm_alt %fixed-stack.1, 1, $noreg, 0, $noreg :: (load (s64) from %fixed-stack.1, align 16)
;CHECK: %72:fr64 = MOVSDrm_alt %fixed-stack.2, 1, $noreg, 0, $noreg :: (load (s64) from %fixed-stack.2)
;CHECK: %77:fr64 = MOVSDrm_alt %fixed-stack.3, 1, $noreg, 0, $noreg :: (load (s64) from %fixed-stack.3, align 16)
;CHECK: MOV64mr %stack.0, 1, $noreg, 0, $noreg, %3 :: (store (s64) into %stack.0)
;CHECK: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
;CHECK: STATEPOINT 2882400000, 0, 0, target-flags(x86-plt) @blam, 2, 9, 2, 0, 2, 59, 2, 0, 2, 1, 2, 0, 2, 0, 2, 0, 2, 26, 2, 0, 2, 0, 1, 8, %stack.0, 0, 2, 4, %68, 2, 7, 2, 0, 2, 4, %64, 2, 7, 2, 0, 2, 4, %6, 2, 7, 2, 0, 2, 4, %59, 2, 7, 2, 0, 2, 4, %52, 2, 7, 2, 0, 2, 4, %45, 2, 7, 2, 0, 2, 4, %10, 2, 7, 2, 0, 2, 4, %55, 2, 7, 2, 0, 2, 4, %77, 2, 7, 2, 0, 2, 4, %72, 2, 7, 2, 0, 2, 4, %14, 2, 7, 2, 0, 2, 4, %82, 2, 7, 2, 0, 2, 7, 2, 0, 2, 1, 1, 8, %stack.0, 0, 2, 0, 2, 1, 0, 0, csr_64_mostregs, implicit-def $rsp, implicit-def $ssp :: (volatile load store (s64) on %stack.0)
;CHECK: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
;CHECK: %17:gr32 = MOV32r0 implicit-def dead $eflags
;CHECK: TEST8rr %17.sub_8bit, %17.sub_8bit, implicit-def $eflags
;CHECK: MOVSDmr %stack.1, 1, $noreg, 0, $noreg, %45 :: (store (s64) into %stack.1)
;CHECK: MOVSDmr %stack.2, 1, $noreg, 0, $noreg, %52 :: (store (s64) into %stack.2)
;CHECK: MOVSDmr %stack.5, 1, $noreg, 0, $noreg, %64 :: (store (s64) into %stack.5)
;CHECK: MOVSDmr %stack.6, 1, $noreg, 0, $noreg, %68 :: (store (s64) into %stack.6)
;CHECK: JCC_1 %bb.2, 4, implicit killed $eflags
;CHECK: bb.1:
;CHECK: successors: %bb.3(0x80000000)
;CHECK: %60:fr64 = MOVSDrm_alt $rip, 1, $noreg, %const.0, $noreg :: (load (s64) from constant-pool)
;CHECK: MOVSDmr %stack.3, 1, $noreg, 0, $noreg, %60 :: (store (s64) into %stack.3)
;CHECK: MOVSDmr %stack.4, 1, $noreg, 0, $noreg, %60 :: (store (s64) into %stack.4)
;CHECK: MOVSDmr %stack.7, 1, $noreg, 0, $noreg, %60 :: (store (s64) into %stack.7)
;CHECK: JMP_1 %bb.3
;CHECK: bb.2.bb13:
;CHECK: successors: %bb.3(0x80000000)
;CHECK: ADJCALLSTACKDOWN64 8, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
;CHECK: MOVSDmr $rsp, 1, $noreg, 0, $noreg, %14 :: (store (s64) into stack)
;CHECK: dead $edi = MOV32r0 implicit-def dead $eflags, implicit-def $rdi
;CHECK: $xmm0 = COPY %68
;CHECK: $xmm1 = COPY %64
;CHECK: $xmm2 = COPY %6
;CHECK: $xmm3 = COPY %52
;CHECK: $xmm4 = COPY %45
;CHECK: $xmm5 = COPY %10
;CHECK: $xmm6 = COPY %77
;CHECK: $xmm7 = COPY %72
;CHECK: MOVSDmr %stack.3, 1, $noreg, 0, $noreg, %55 :: (store (s64) into %stack.3)
;CHECK: MOVSDmr %stack.4, 1, $noreg, 0, $noreg, %59 :: (store (s64) into %stack.4)
;CHECK: MOVSDmr %stack.7, 1, $noreg, 0, $noreg, %82 :: (store (s64) into %stack.7)
;CHECK: STATEPOINT 2, 5, 9, undef %22:gr64, $rdi, $xmm0, $xmm1, $xmm2, $xmm3, $xmm4, $xmm5, $xmm6, $xmm7, 2, 0, 2, 0, 2, 59, 2, 0, 2, 2, 2, 0, 2, 70, 2, 0, 2, 26, 2, 0, 2, 0, 2, 0, 2, 4, 1, 8, %stack.6, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.5, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.4, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.2, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.1, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.3, 0, 2, 7, 2, 0, 2, 4, 1, 8, %fixed-stack.3, 0, 2, 7, 2, 0, 2, 4, 1, 8, %fixed-stack.2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 4, 1, 8, %fixed-stack.0, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 1, 2, 0, 2, 0, 2, 1, 0, 0, csr_64, implicit-def $rsp, implicit-def $ssp, implicit-def dead $eax :: (load (s64) from %stack.1), (load (s64) from %stack.2), (load (s64) from %stack.3), (load (s64) from %stack.4), (load (s64) from %stack.5), (load (s64) from %stack.6), (load (s64) from %fixed-stack.2), (load (s64) from %fixed-stack.3, align 16), (load (s64) from %fixed-stack.0)
;CHECK: ADJCALLSTACKUP64 8, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
;CHECK: bb.3.bb15:
;CHECK: successors: %bb.7(0x7ffff800), %bb.4(0x00000800)
;CHECK: %24:gr32 = MOV32r0 implicit-def dead $eflags
;CHECK: TEST8rr %24.sub_8bit, %24.sub_8bit, implicit-def $eflags
;CHECK: JCC_1 %bb.7, 5, implicit killed $eflags
;CHECK: JMP_1 %bb.4
;CHECK: bb.4.bb19:
;CHECK: successors: %bb.5(0x00000000), %bb.6(0x80000000)
;CHECK: EH_LABEL <mcsymbol >
;CHECK: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
;CHECK: $edx = MOV32r0 implicit-def dead $eflags
;CHECK: STATEPOINT 1, 16, 3, undef %29:gr64, undef $edi, undef $rsi, $edx, 2, 0, 2, 0, 2, 105, 2, 0, 2, 2, 2, 0, 2, 97, 2, 0, 2, 26, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 0, 2, 2, 2, 3, 2, 0, 2, 20, 2, 0, 2, 0, 2, 4278124286, 2, 4, 1, 8, %stack.6, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.5, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.4, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.2, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.1, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.3, 0, 2, 7, 2, 0, 2, 4, 1, 8, %fixed-stack.3, 0, 2, 7, 2, 0, 2, 4, 1, 8, %fixed-stack.2, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.7, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 1, 2, 4278124286, 2, 0, 2, 1, 0, 0, csr_64, implicit-def $rsp, implicit-def $ssp, implicit-def dead $eax :: (load (s64) from %stack.1), (load (s64) from %stack.2), (load (s64) from %stack.3), (load (s64) from %stack.4), (load (s64) from %stack.5), (load (s64) from %stack.6), (load (s64) from %fixed-stack.2), (load (s64) from %fixed-stack.3, align 16), (load (s64) from %stack.7)
;CHECK: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
;CHECK: EH_LABEL <mcsymbol >
;CHECK: JMP_1 %bb.5
;CHECK: bb.5.bb21:
;CHECK: successors:
;CHECK: ADJCALLSTACKDOWN64 8, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
;CHECK: %85:fr64 = MOVSDrm_alt %stack.7, 1, $noreg, 0, $noreg :: (load (s64) from %stack.7)
;CHECK: MOVSDmr $rsp, 1, $noreg, 0, $noreg, %85 :: (store (s64) into stack)
;CHECK: $xmm0 = MOVSDrm_alt %stack.6, 1, $noreg, 0, $noreg :: (load (s64) from %stack.6)
;CHECK: $xmm1 = MOVSDrm_alt %stack.5, 1, $noreg, 0, $noreg :: (load (s64) from %stack.5)
;CHECK: $xmm2 = MOVSDrm_alt %stack.4, 1, $noreg, 0, $noreg :: (load (s64) from %stack.4)
;CHECK: $xmm3 = MOVSDrm_alt %stack.2, 1, $noreg, 0, $noreg :: (load (s64) from %stack.2)
;CHECK: $xmm4 = MOVSDrm_alt %stack.1, 1, $noreg, 0, $noreg :: (load (s64) from %stack.1)
;CHECK: $xmm5 = MOVSDrm_alt %stack.3, 1, $noreg, 0, $noreg :: (load (s64) from %stack.3)
;CHECK: %80:fr64 = MOVSDrm_alt %fixed-stack.3, 1, $noreg, 0, $noreg :: (load (s64) from %fixed-stack.3, align 16)
;CHECK: $xmm6 = COPY %80
;CHECK: $esi = MOV32ri 51
;CHECK: %75:fr64 = MOVSDrm_alt %fixed-stack.2, 1, $noreg, 0, $noreg :: (load (s64) from %fixed-stack.2)
;CHECK: $xmm7 = COPY %75
;CHECK: STATEPOINT 2, 5, 10, undef %36:gr64, undef $rdi, $xmm0, $xmm1, $xmm2, $xmm3, $xmm4, $xmm5, $xmm6, $xmm7, killed $esi, 2, 0, 2, 0, 2, 105, 2, 0, 2, 2, 2, 0, 2, 97, 2, 0, 2, 26, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 2, 2, 2, 2, 46, 2, 0, 2, 20, 2, 0, 2, 0, 2, 4278124286, 2, 4, 1, 8, %stack.6, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.5, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.4, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.2, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.1, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.3, 0, 2, 7, 2, 0, 2, 4, 1, 8, %fixed-stack.3, 0, 2, 7, 2, 0, 2, 4, 1, 8, %fixed-stack.2, 0, 2, 7, 2, 0, 2, 4, 1, 8, %stack.7, 0, 2, 7, 2, 0, 2, 3, 2, 51, 2, 1, 2, 4278124286, 2, 0, 2, 1, 0, 0, csr_64, implicit-def $rsp, implicit-def $ssp :: (load (s64) from %stack.1), (load (s64) from %stack.2), (load (s64) from %stack.3), (load (s64) from %stack.4), (load (s64) from %stack.5), (load (s64) from %stack.6), (load (s64) from %fixed-stack.2), (load (s64) from %fixed-stack.3, align 16), (load (s64) from %stack.7)
;CHECK: ADJCALLSTACKUP64 8, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
;CHECK: bb.6.bb23 (landing-pad):
;CHECK: liveins: $rax, $rdx
;CHECK: EH_LABEL <mcsymbol >
;CHECK: RET 0
;CHECK: bb.7.bb25:
;CHECK: RET 0
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