# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -o - %s -fixup-allow-gcptr-in-csr=false -run-pass fixup-statepoint-caller-saved | FileCheck %s
# NOTE: MIR in this test was hand edited to have two statepoints share single landing pad.
# This is forbidden in IR, but is allowed in MIR. I just was unable to reproduce conditions
# under which landing pad merge happens. So I did it manually.
#
--- |
; ModuleID = 'statepoint-fixup-shared-ehpad.ll'
source_filename = "statepoint-fixup-shared-ehpad.ll"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"
declare void @foo()
declare void @bar()
declare i32 @personality_function()
define ptr addrspace(1) @test_one(i32 %a, ptr addrspace(1) %p, ptr addrspace(1) %q) gc "statepoint-example" personality ptr @personality_function {
entry:
%cmp = icmp eq i32 %a, 0
br i1 %cmp, label %zero, label %nonzero
zero: ; preds = %entry
%token = invoke token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(ptr addrspace(1) %p, ptr addrspace(1) %q) ]
to label %normal_dest_a unwind label %exceptional_return_a
nonzero: ; preds = %entry
%token2 = invoke token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(ptr addrspace(1) %p, ptr addrspace(1) %q) ]
to label %normal_dest_b unwind label %exceptional_return_b
normal_dest_a: ; preds = %zero
%p2 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %token, i32 0, i32 0) ; (%p, %p)
ret ptr addrspace(1) %p2
exceptional_return_a: ; preds = %zero
%landing_pad = landingpad token
cleanup
%q2 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %landing_pad, i32 1, i32 1) ; (%q, %q)
ret ptr addrspace(1) %q2
normal_dest_b: ; preds = %nonzero
%p3 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %token2, i32 0, i32 0) ; (%p, %p)
ret ptr addrspace(1) %p3
exceptional_return_b: ; preds = %nonzero
%landing_pad2 = landingpad token
cleanup
%q3 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %landing_pad2, i32 1, i32 1) ; (%q, %q)
ret ptr addrspace(1) %q3
}
declare token @llvm.experimental.gc.statepoint.p0(i64 immarg, i32 immarg, ptr, i32 immarg, i32 immarg, ...)
; Function Attrs: nounwind readonly
declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32 immarg, i32 immarg) #0
attributes #0 = { nounwind readonly }
attributes #1 = { nounwind }
...
---
name: test_one
alignment: 16
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
registers: []
liveins:
- { reg: '$edi', virtual-reg: '' }
- { reg: '$rsi', virtual-reg: '' }
- { reg: '$rdx', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 1
adjustsStack: false
hasCalls: true
stackProtector: ''
maxCallFrameSize: 4294967295
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack: []
stack: []
callSites: []
constants: []
machineFunctionInfo: {}
body: |
; CHECK-LABEL: name: test_one
; CHECK: bb.1:
; CHECK: successors: %bb.3(0x40000000), %bb.4(0x40000000)
; CHECK: liveins: $rbx, $r14
; CHECK: EH_LABEL <mcsymbol Ltmp0>
; CHECK: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
; CHECK: MOV64mr [[STACK0:%stack.[0-9]+]], 1, $noreg, 0, $noreg, killed $rbx :: (store (s64) into [[STACK0]])
; CHECK: MOV64mr [[STACK1:%stack.[0-9]+]], 1, $noreg, 0, $noreg, killed $r14 :: (store (s64) into [[STACK1]])
; CHECK: STATEPOINT 0, 0, 0, @foo, 2, 0, 2, 0, 2, 0, 2, 2, 1, 8, [[STACK0]], 0, 1, 8, [[STACK1]], 0, 2, 0, 2, 2, 0, 0, 1, 1, csr_64, implicit-def $rsp, implicit-def $ssp :: (load store (s64) on [[STACK1]]), (load store (s64) on [[STACK0]])
; CHECK-DAG: $rbx = MOV64rm [[STACK0]], 1, $noreg, 0, $noreg :: (load (s64) from [[STACK0]])
; CHECK-DAG: $r14 = MOV64rm [[STACK1]], 1, $noreg, 0, $noreg :: (load (s64) from [[STACK1]])
; CHECK: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
; CHECK: EH_LABEL <mcsymbol Ltmp1>
; CHECK: JMP_1 %bb.3
; CHECK: bb.2:
; CHECK: successors: %bb.5(0x40000000), %bb.4(0x40000000)
; CHECK: liveins: $rbx, $r14
; CHECK: EH_LABEL <mcsymbol Ltmp2>
; CHECK: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
; CHECK-DAG: MOV64mr [[STACK0]], 1, $noreg, 0, $noreg, killed $rbx :: (store (s64) into [[STACK0]])
; CHECK-DAG: MOV64mr [[STACK1]], 1, $noreg, 0, $noreg, killed $r14 :: (store (s64) into [[STACK1]])
; CHECK: STATEPOINT 0, 0, 0, @bar, 2, 0, 2, 0, 2, 0, 2, 2, 1, 8, %stack.0, 0, 1, 8, [[STACK1]], 0, 2, 0, 2, 2, 0, 0, 1, 1, csr_64, implicit-def $rsp, implicit-def $ssp :: (load store (s64) on [[STACK1]]), (load store (s64) on [[STACK0]])
; CHECK-DAG: $rbx = MOV64rm [[STACK0]], 1, $noreg, 0, $noreg :: (load (s64) from [[STACK0]])
; CHECK-DAG: $r14 = MOV64rm [[STACK1]], 1, $noreg, 0, $noreg :: (load (s64) from [[STACK1]])
; CHECK: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
; CHECK: EH_LABEL <mcsymbol Ltmp3>
; CHECK: JMP_1 %bb.5
; CHECK: bb.4 (landing-pad):
; CHECK: liveins: $rax, $rdx, $r14
; CHECK: EH_LABEL <mcsymbol Ltmp4>
; CHECK-DAG: $rbx = MOV64rm [[STACK0]], 1, $noreg, 0, $noreg :: (load (s64) from [[STACK0]])
; CHECK-DAG: $r14 = MOV64rm [[STACK1]], 1, $noreg, 0, $noreg :: (load (s64) from [[STACK1]])
; CHECK: $rax = COPY killed renamable $r14
; CHECK: RET 0, $rax
bb.0:
successors: %bb.1, %bb.2
liveins: $edi, $rdx, $rsi
renamable $r14 = COPY $rdx
renamable $rbx = COPY $rsi
TEST32rr killed renamable $edi, renamable $edi, implicit-def $eflags
JCC_1 %bb.2, 5, implicit killed $eflags
JMP_1 %bb.1
bb.1:
successors: %bb.3, %bb.4
liveins: $rbx, $r14
EH_LABEL <mcsymbol Ltmp0>
ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
renamable $rbx, renamable $r14 = STATEPOINT 0, 0, 0, @foo, 2, 0, 2, 0, 2, 0, 2, 2, killed renamable $rbx(tied-def 0), killed renamable $r14(tied-def 1), 2, 0, 2, 2, 0, 0, 1, 1, csr_64, implicit-def $rsp, implicit-def $ssp
ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
EH_LABEL <mcsymbol Ltmp1>
JMP_1 %bb.3
bb.2:
successors: %bb.5, %bb.4
liveins: $rbx, $r14
EH_LABEL <mcsymbol Ltmp2>
ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
renamable $rbx, renamable $r14 = STATEPOINT 0, 0, 0, @bar, 2, 0, 2, 0, 2, 0, 2, 2, killed renamable $rbx(tied-def 0), killed renamable $r14(tied-def 1), 2, 0, 2, 2, 0, 0, 1, 1, csr_64, implicit-def $rsp, implicit-def $ssp
ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
EH_LABEL <mcsymbol Ltmp3>
JMP_1 %bb.5
bb.3:
liveins: $rbx
$rax = COPY killed renamable $rbx
RET 0, $rax
bb.4 (landing-pad):
liveins: $rax, $rdx, $r14
EH_LABEL <mcsymbol Ltmp4>
$rax = COPY killed renamable $r14
RET 0, $rax
bb.5:
liveins: $rbx
$rax = COPY killed renamable $rbx
RET 0, $rax
...
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