; RUN: llc -max-registers-for-gc-values=256 -verify-machineinstrs -stop-after twoaddressinstruction < %s | FileCheck --check-prefixes CHECK,CHECK-LV %s
; RUN: llc -max-registers-for-gc-values=256 -verify-machineinstrs -stop-after twoaddressinstruction -early-live-intervals < %s | FileCheck --check-prefixes CHECK,CHECK-LIS %s
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
target triple = "x86_64-unknown-linux-gnu"
declare void @foo() gc "statepoint-example"
declare void @bar(ptr addrspace(1)) gc "statepoint-example"
declare ptr @fake_personality_function()
; Simplest possible test demonstrating the problem
; CHECK-LABEL: name: test
; CHECK: bb.0
; CHECK-LV: %0:gr64 = COPY killed $rdi
; CHECK-LIS: %0:gr64 = COPY $rdi
; CHECK: %1:gr64 = COPY %0
; CHECK: %1:gr64 = STATEPOINT 2, 5, 0, undef %2:gr64, 2, 0, 2, 0, 2, 0, 2, 1, %1(tied-def 0), 2, 0, 2, 1, 0, 0
; CHECK-LV: TEST64rr killed %0, %0, implicit-def $eflags
; CHECK-LIS: TEST64rr %0, %0, implicit-def $eflags
; CHECK: JCC_1 %bb.2, 4, implicit killed $eflags
; CHECK: JMP_1 %bb.1
; CHECK: bb.1
; CHECK-LV: $rdi = COPY killed %1
; CHECK-LV: STATEPOINT 2, 5, 1, undef %3:gr64, killed $rdi, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0
; CHECK-LIS: $rdi = COPY %1
; CHECK-LIS: STATEPOINT 2, 5, 1, undef %3:gr64, $rdi, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0
; CHECK: RET 0
; CHECK: bb.2
; CHECK: RET 0
define void @test(ptr addrspace(1) %a) gc "statepoint-example" {
entry:
%not7 = icmp eq ptr addrspace(1) %a, null
%statepoint_token1745 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2, i32 5, ptr nonnull elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(ptr addrspace(1) %a) ]
br i1 %not7, label %zero, label %not_zero
not_zero:
%a.relocated = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %statepoint_token1745, i32 0, i32 0) ; (%a, %a)
%statepoint_token1752 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2, i32 5, ptr nonnull elementtype(void (ptr addrspace(1))) @bar, i32 1, i32 0, ptr addrspace(1) %a.relocated, i32 0, i32 0) [ "deopt"(), "gc-live"() ]
ret void
zero:
ret void
}
; A bit more complex test, where both registers are used in same successor BB
; CHECK-LABEL: name: test2
; CHECK: bb.2
; CHECK: %1:gr64 = STATEPOINT 2882400000, 0, 0, undef %11:gr64, 2, 0, 2, 0, 2, 0, 2, 1, %1(tied-def 0), 2, 0, 2, 1, 0, 0, csr_64
; CHECK: %10:gr64 = COPY %1
; CHECK: %10:gr64 = STATEPOINT 2882400000, 0, 0, undef %13:gr64, 2, 0, 2, 0, 2, 0, 2, 1, %10(tied-def 0), 2, 0, 2, 1, 0, 0, csr_64
; CHECK: JMP_1 %bb.3
; CHECK: bb.3
; CHECK: %18:gr8 = COPY %17.sub_8bit
; CHECK-LV: TEST8rr killed %18, %18, implicit-def $eflags
; CHECK-LIS: TEST8rr %18, %18, implicit-def $eflags
; CHECK: JCC_1 %bb.5, 5, implicit killed $eflags
; CHECK: JMP_1 %bb.4
; CHECK: bb.4
; CHECK: bb.5
; CHECK: %3:gr64 = COPY %10
; CHECK: %4:gr64 = COPY killed %10
; CHECK: %4:gr64 = nuw ADD64ri32 %4, 8, implicit-def dead $eflags
; CHECK: TEST64rr killed %1, %1, implicit-def $eflags
; CHECK: JCC_1 %bb.1, 5, implicit killed $eflags
; CHECK: JMP_1 %bb.6
define void @test2(ptr addrspace(1) %this, i32 %0, ptr addrspace(1) %p0, ptr addrspace(1) %p1) gc "statepoint-example" personality ptr @fake_personality_function {
preheader:
br label %loop.head
loop.head:
%phi1 = phi ptr addrspace(1) [ %p0, %preheader ], [ %addr.i.i46797.remat64523, %tail ]
%v1 = phi ptr addrspace(1) [ %p1, %preheader ], [ %v3, %tail ]
%not3= icmp ne ptr addrspace(1) %phi1, null
br i1 %not3, label %BB1, label %BB3
BB3:
%token1 = call token (i64, i32, ptr addrspace(1) ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr addrspace(1) ()* elementtype(ptr addrspace(1) ()) undef, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(ptr addrspace(1) %v1) ]
%v2 = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %token1, i32 0, i32 0) ; (%v1, %v1)
%cond = icmp eq ptr addrspace(1) null, %v2
%token2 = invoke token (i64, i32, ptr addrspace(1) ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr addrspace(1) ()* elementtype(ptr addrspace(1) ()) undef, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(ptr addrspace(1) %v2, ptr addrspace(1) %phi1) ]
to label %BB2 unwind label %BB6
BB2:
%v3 = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %token2, i32 0, i32 0) ; (%v2, %v2)
%.remat64522 = getelementptr inbounds i8, ptr addrspace(1) %v3, i64 8
%addr.i.i46797.remat64523 = bitcast ptr addrspace(1) %.remat64522 to ptr addrspace(1)
br i1 undef, label %BB4, label %tail
BB4:
%dummy = ptrtoint ptr undef to i64
br label %tail
tail:
br i1 %cond, label %BB1, label %loop.head
BB1:
ret void
BB6:
%lpad.split-lp = landingpad token
cleanup
ret void
}
declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32 immarg, i32 immarg) #5
declare token @llvm.experimental.gc.statepoint.p0(i64 immarg, i32 immarg, ptr addrspace(1) ()*, i32 immarg, i32 immarg, ...)
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