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statepoint-live-in.ll
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statepoint-live-in.ll
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs -O3 -restrict-statepoint-remat < %s | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.11.0"
declare void @bar() #0
declare void @baz()
define void @test1(i32 %a) gc "statepoint-example" {
; CHECK-LABEL: test1:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp0:
; CHECK-NEXT: popq %rax
; CHECK-NEXT: retq
entry:
; We expect the argument to be passed in an extra register to bar
%statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i32 %a)]
ret void
}
define void @test2(i32 %a, i32 %b) gc "statepoint-example" {
; CHECK-LABEL: test2:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: .cfi_offset %rbx, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movl %esi, %ebx
; CHECK-NEXT: movl %edi, %ebp
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp1:
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp2:
; CHECK-NEXT: addq $8, %rsp
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: retq
entry:
; Because the first call clobbers esi, we have to move the values into
; new registers. Note that they stay in the registers for both calls.
call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i32 %a, i32 %b)]
call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i32 %b, i32 %a)]
ret void
}
define void @test3(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i) gc "statepoint-example" {
; CHECK-LABEL: test3:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp3:
; CHECK-NEXT: popq %rax
; CHECK-NEXT: retq
entry:
; We directly reference the argument slot
%statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i)]
ret void
}
; This case just confirms that we don't crash when given more live values
; than registers. This is a case where we *have* to use a stack slot. This
; also ends up being a good test of whether we can fold loads from immutable
; stack slots into the statepoint.
define void @test4(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i, i32 %j, i32 %k, i32 %l, i32 %m, i32 %n, i32 %o, i32 %p, i32 %q, i32 %r, i32 %s, i32 %t, i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z) gc "statepoint-example" {
; CHECK-LABEL: test4:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp4:
; CHECK-NEXT: popq %rax
; CHECK-NEXT: retq
entry:
%statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i, i32 %j, i32 %k, i32 %l, i32 %m, i32 %n, i32 %o, i32 %p, i32 %q, i32 %r, i32 %s, i32 %t, i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z)]
ret void
}
; A live-through gc-value must be spilled even if it is also a live-in deopt
; value. For live-in, we could technically report the register copy, but from
; a code quality perspective it's better to reuse the required stack slot so
; as to put less stress on the register allocator for no benefit.
define ptr addrspace(1) @test5(i32 %a, ptr addrspace(1) %p) gc "statepoint-example" {
; CHECK-LABEL: test5:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: movq %rsi, (%rsp)
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp5:
; CHECK-NEXT: movq (%rsp), %rax
; CHECK-NEXT: popq %rcx
; CHECK-NEXT: retq
entry:
%token = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["gc-live"(ptr addrspace(1) %p), "deopt"(i32 %a)]
%p2 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %token, i32 0, i32 0)
ret ptr addrspace(1) %p2
}
; Show the interaction of live-through spilling followed by live-in.
define void @test6(i32 %a) gc "statepoint-example" {
; CHECK-LABEL: test6:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: subq $16, %rsp
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: .cfi_offset %rbx, -16
; CHECK-NEXT: movl %edi, %ebx
; CHECK-NEXT: movl %edi, {{[0-9]+}}(%rsp)
; CHECK-NEXT: callq _baz
; CHECK-NEXT: Ltmp6:
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp7:
; CHECK-NEXT: addq $16, %rsp
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: retq
entry:
call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @baz, i32 0, i32 0, i32 0, i32 0) ["deopt"(i32 %a)]
call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i32 %a)]
ret void
}
; A variant of test6 where values are not directly foldable from stack slots.
; This stresses our rematerialization handling.
define void @test7(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i, i32 %j, i32 %k, i32 %l, i32 %m, i32 %n, i32 %o, i32 %p, i32 %q, i32 %r, i32 %s, i32 %t, i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z) gc "statepoint-example" {
; The code for this is terrible, check simply for correctness for the moment
; CHECK-LABEL: test7:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 56
; CHECK-NEXT: subq $88, %rsp
; CHECK-NEXT: .cfi_def_cfa_offset 144
; CHECK-NEXT: .cfi_offset %rbx, -56
; CHECK-NEXT: .cfi_offset %r12, -48
; CHECK-NEXT: .cfi_offset %r13, -40
; CHECK-NEXT: .cfi_offset %r14, -32
; CHECK-NEXT: .cfi_offset %r15, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl %edi, %edi
; CHECK-NEXT: movl %esi, %esi
; CHECK-NEXT: movl %edx, %edx
; CHECK-NEXT: movl %ecx, %ecx
; CHECK-NEXT: movl %r8d, %r8d
; CHECK-NEXT: movl %r9d, %r9d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, (%rsp) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %ebp
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r13d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r12d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r15d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r14d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %ebx
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r11d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r10d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: callq _bar ## 88-byte Folded Reload
; CHECK-NEXT: Ltmp8:
; CHECK-NEXT: addq $88, %rsp
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: popq %r12
; CHECK-NEXT: popq %r13
; CHECK-NEXT: popq %r14
; CHECK-NEXT: popq %r15
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: retq
entry:
%a64 = zext i32 %a to i64
%b64 = zext i32 %b to i64
%c64 = zext i32 %c to i64
%d64 = zext i32 %d to i64
%e64 = zext i32 %e to i64
%f64 = zext i32 %f to i64
%g64 = zext i32 %g to i64
%h64 = zext i32 %h to i64
%i64 = zext i32 %i to i64
%j64 = zext i32 %j to i64
%k64 = zext i32 %k to i64
%l64 = zext i32 %l to i64
%m64 = zext i32 %m to i64
%n64 = zext i32 %n to i64
%o64 = zext i32 %o to i64
%p64 = zext i32 %p to i64
%q64 = zext i32 %q to i64
%r64 = zext i32 %r to i64
%s64 = zext i32 %s to i64
%t64 = zext i32 %t to i64
%u64 = zext i32 %u to i64
%v64 = zext i32 %v to i64
%w64 = zext i32 %w to i64
%x64 = zext i32 %x to i64
%y64 = zext i32 %y to i64
%z64 = zext i32 %z to i64
%statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i64 %a64, i64 %b64, i64 %c64, i64 %d64, i64 %e64, i64 %f64, i64 %g64, i64 %h64, i64 %i64, i64 %j64, i64 %k64, i64 %l64, i64 %m64, i64 %n64, i64 %o64, i64 %p64, i64 %q64, i64 %r64, i64 %s64, i64 %t64, i64 %u64, i64 %v64, i64 %w64, i64 %x64, i64 %y64, i64 %z64)]
ret void
}
; a variant of test7 with mixed types chosen to exercise register aliases
define void @test8(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i, i32 %j, i32 %k, i32 %l, i32 %m, i32 %n, i32 %o, i32 %p, i32 %q, i32 %r, i32 %s, i32 %t, i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z) gc "statepoint-example" {
; The code for this is terrible, check simply for correctness for the moment
; CHECK-LABEL: test8:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 56
; CHECK-NEXT: subq $72, %rsp
; CHECK-NEXT: .cfi_def_cfa_offset 128
; CHECK-NEXT: .cfi_offset %rbx, -56
; CHECK-NEXT: .cfi_offset %r12, -48
; CHECK-NEXT: .cfi_offset %r13, -40
; CHECK-NEXT: .cfi_offset %r14, -32
; CHECK-NEXT: .cfi_offset %r15, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movl %r9d, %r10d
; CHECK-NEXT: movl %r8d, %r9d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, (%rsp) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %ebp
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r13d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r12d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r15d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r14d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %ebx
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r11d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r8d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: callq _bar ## 72-byte Folded Reload
; CHECK-NEXT: Ltmp9:
; CHECK-NEXT: addq $72, %rsp
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: popq %r12
; CHECK-NEXT: popq %r13
; CHECK-NEXT: popq %r14
; CHECK-NEXT: popq %r15
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: retq
entry:
%a8 = trunc i32 %a to i8
%b8 = trunc i32 %b to i8
%c8 = trunc i32 %c to i8
%d8 = trunc i32 %d to i8
%e16 = trunc i32 %e to i16
%f16 = trunc i32 %f to i16
%g16 = trunc i32 %g to i16
%h16 = trunc i32 %h to i16
%i64 = zext i32 %i to i64
%j64 = zext i32 %j to i64
%k64 = zext i32 %k to i64
%l64 = zext i32 %l to i64
%m64 = zext i32 %m to i64
%n64 = zext i32 %n to i64
%o64 = zext i32 %o to i64
%p64 = zext i32 %p to i64
%q64 = zext i32 %q to i64
%r64 = zext i32 %r to i64
%s64 = zext i32 %s to i64
%t64 = zext i32 %t to i64
%u64 = zext i32 %u to i64
%v64 = zext i32 %v to i64
%w64 = zext i32 %w to i64
%x64 = zext i32 %x to i64
%y64 = zext i32 %y to i64
%z64 = zext i32 %z to i64
%statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i8 %a8, i8 %b8, i8 %c8, i8 %d8, i16 %e16, i16 %f16, i16 %g16, i16 %h16, i64 %i64, i64 %j64, i64 %k64, i64 %l64, i64 %m64, i64 %n64, i64 %o64, i64 %p64, i64 %q64, i64 %r64, i64 %s64, i64 %t64, i64 %u64, i64 %v64, i64 %w64, i64 %x64, i64 %y64, i64 %z64)]
ret void
}
; Test perfect forwarding of argument registers and stack slots to the
; deopt bundle uses
define void @test9(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i, i32 %j, i32 %k, i32 %l, i32 %m, i32 %n, i32 %o, i32 %p, i32 %q, i32 %r, i32 %s, i32 %t, i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z) gc "statepoint-example" {
; CHECK-LABEL: test9:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp10:
; CHECK-NEXT: popq %rax
; CHECK-NEXT: retq
entry:
%statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i, i32 %j, i32 %k, i32 %l, i32 %m, i32 %n, i32 %o, i32 %p, i32 %q, i32 %r, i32 %s, i32 %t, i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z)]
ret void
}
; Test enough folding of argument slots when we have one call which clobbers
; registers before a second which needs them - i.e. we must do something with
; arguments originally passed in registers
define void @test10(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i, i32 %j, i32 %k, i32 %l, i32 %m, i32 %n, i32 %o, i32 %p, i32 %q, i32 %r, i32 %s, i32 %t, i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z) gc "statepoint-example" {
; FIXME (minor): It would be better to just spill (and fold reload) for
; argument registers then spill and fill all the CSRs.
; CHECK-LABEL: test10:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 56
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 64
; CHECK-NEXT: .cfi_offset %rbx, -56
; CHECK-NEXT: .cfi_offset %r12, -48
; CHECK-NEXT: .cfi_offset %r13, -40
; CHECK-NEXT: .cfi_offset %r14, -32
; CHECK-NEXT: .cfi_offset %r15, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movl %r9d, %ebp
; CHECK-NEXT: movl %r8d, %ebx
; CHECK-NEXT: movl %ecx, %r14d
; CHECK-NEXT: movl %edx, %r15d
; CHECK-NEXT: movl %esi, %r12d
; CHECK-NEXT: movl %edi, %r13d
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp11:
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp12:
; CHECK-NEXT: addq $8, %rsp
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: popq %r12
; CHECK-NEXT: popq %r13
; CHECK-NEXT: popq %r14
; CHECK-NEXT: popq %r15
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: retq
entry:
%statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i, i32 %j, i32 %k, i32 %l, i32 %m, i32 %n, i32 %o, i32 %p, i32 %q, i32 %r, i32 %s, i32 %t, i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z)]
%statepoint_token2 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i32 0, i32 0) ["deopt"(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i, i32 %j, i32 %k, i32 %l, i32 %m, i32 %n, i32 %o, i32 %p, i32 %q, i32 %r, i32 %s, i32 %t, i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z)]
ret void
}
; Check that we can remat some uses of a def despite not remating before the
; statepoint user.
define i64 @test11(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, i32 %i, i32 %j, i32 %k, i32 %l, i32 %m, i32 %n, i32 %o, i32 %p, i32 %q, i32 %r, i32 %s, i32 %t, i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z) gc "statepoint-example" {
; FIXME: The codegen for this is correct, but horrible. Lots of room for
; improvement if we so desire.
; CHECK-LABEL: test11:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 56
; CHECK-NEXT: subq $168, %rsp
; CHECK-NEXT: .cfi_def_cfa_offset 224
; CHECK-NEXT: .cfi_offset %rbx, -56
; CHECK-NEXT: .cfi_offset %r12, -48
; CHECK-NEXT: .cfi_offset %r13, -40
; CHECK-NEXT: .cfi_offset %r14, -32
; CHECK-NEXT: .cfi_offset %r15, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl %edi, %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl %esi, %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl %edx, %r14d
; CHECK-NEXT: movl %ecx, %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl %r8d, %r12d
; CHECK-NEXT: movl %r9d, %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r13d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %ebp
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %ebx
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %r15d
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) ## 8-byte Spill
; CHECK-NEXT: callq _bar ## 160-byte Folded Reload
; CHECK-NEXT: Ltmp13:
; CHECK-NEXT: movq {{[-0-9]+}}(%r{{[sb]}}p), %rax ## 8-byte Reload
; CHECK-NEXT: addq {{[-0-9]+}}(%r{{[sb]}}p), %rax ## 8-byte Folded Reload
; CHECK-NEXT: addq {{[-0-9]+}}(%r{{[sb]}}p), %r14 ## 8-byte Folded Reload
; CHECK-NEXT: addq %rax, %r14
; CHECK-NEXT: addq {{[-0-9]+}}(%r{{[sb]}}p), %r12 ## 8-byte Folded Reload
; CHECK-NEXT: addq %r14, %r12
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %r12
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %r15
; CHECK-NEXT: addq %r12, %r15
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %rbx
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %rbx
; CHECK-NEXT: addq %r15, %rbx
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %rbp
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %rbp
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %rbp
; CHECK-NEXT: addq %rbx, %rbp
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %r13
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %r13
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %r13
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %r13
; CHECK-NEXT: addq %rbp, %r13
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %ecx
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %rcx
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %rcx
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %rcx
; CHECK-NEXT: movl {{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: addq %rax, %rcx
; CHECK-NEXT: addq %r13, %rcx
; CHECK-NEXT: movq %rcx, %rax
; CHECK-NEXT: addq $168, %rsp
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: popq %r12
; CHECK-NEXT: popq %r13
; CHECK-NEXT: popq %r14
; CHECK-NEXT: popq %r15
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: retq
entry:
%a64 = zext i32 %a to i64
%b64 = zext i32 %b to i64
%c64 = zext i32 %c to i64
%d64 = zext i32 %d to i64
%e64 = zext i32 %e to i64
%f64 = zext i32 %f to i64
%g64 = zext i32 %g to i64
%h64 = zext i32 %h to i64
%i64 = zext i32 %i to i64
%j64 = zext i32 %j to i64
%k64 = zext i32 %k to i64
%l64 = zext i32 %l to i64
%m64 = zext i32 %m to i64
%n64 = zext i32 %n to i64
%o64 = zext i32 %o to i64
%p64 = zext i32 %p to i64
%q64 = zext i32 %q to i64
%r64 = zext i32 %r to i64
%s64 = zext i32 %s to i64
%t64 = zext i32 %t to i64
%u64 = zext i32 %u to i64
%v64 = zext i32 %v to i64
%w64 = zext i32 %w to i64
%x64 = zext i32 %x to i64
%y64 = zext i32 %y to i64
%z64 = zext i32 %z to i64
call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i64 0, i64 0) ["deopt"(i64 %a64, i64 %b64, i64 %c64, i64 %d64, i64 %e64, i64 %f64, i64 %g64, i64 %h64, i64 %i64, i64 %j64, i64 %k64, i64 %l64, i64 %m64, i64 %n64, i64 %o64, i64 %p64, i64 %q64, i64 %r64, i64 %s64, i64 %t64, i64 %u64, i64 %v64, i64 %w64, i64 %x64, i64 %y64, i64 %z64)]
%addab = add i64 %a64, %b64
%addc = add i64 %addab, %c64
%addd = add i64 %addc, %d64
%adde = add i64 %addd, %e64
%addf = add i64 %adde, %f64
%addg = add i64 %addf, %g64
%addh = add i64 %addg, %h64
%addi = add i64 %addh, %i64
%addj = add i64 %addi, %j64
%addk = add i64 %addj, %k64
%addl = add i64 %addk, %l64
%addm = add i64 %addl, %m64
%addn = add i64 %addm, %n64
%addo = add i64 %addn, %o64
%addp = add i64 %addo, %p64
%addq = add i64 %addp, %q64
%addr = add i64 %addq, %r64
%adds = add i64 %addr, %s64
%addt = add i64 %adds, %t64
%addu = add i64 %addt, %u64
%addv = add i64 %addu, %v64
%addw = add i64 %addv, %w64
%addx = add i64 %addw, %x64
%addy = add i64 %addx, %y64
%addz = add i64 %addy, %z64
ret i64 %addz
}
; Demonstrate address of a function (w/o spilling)
define void @addr_func() gc "statepoint-example" {
; CHECK-LABEL: addr_func:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: movq _bar@GOTPCREL(%rip), %rax
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp14:
; CHECK-NEXT: popq %rax
; CHECK-NEXT: retq
entry:
%statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i64 0, i64 0) ["deopt"(ptr @bar, ptr @bar, ptr @bar)]
ret void
}
; Demonstrate address of a global (w/o spilling)
@G = external global i32
define void @addr_global() gc "statepoint-example" {
; CHECK-LABEL: addr_global:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: movq _G@GOTPCREL(%rip), %rax
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp15:
; CHECK-NEXT: popq %rax
; CHECK-NEXT: retq
entry:
%statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i64 0, i64 0) ["deopt"(ptr @G, ptr @G, ptr @G)]
ret void
}
define void @addr_alloca(i32 %v) gc "statepoint-example" {
; CHECK-LABEL: addr_alloca:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: movl %edi, {{[0-9]+}}(%rsp)
; CHECK-NEXT: callq _bar
; CHECK-NEXT: Ltmp16:
; CHECK-NEXT: popq %rax
; CHECK-NEXT: retq
entry:
%a = alloca i32
store i32 %v, ptr %a
%statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @bar, i32 0, i32 2, i64 0, i64 0) ["deopt"(ptr %a, ptr %a, ptr %a)]
ret void
}
; CHECK: Ltmp0-_test1
; CHECK: .byte 1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 5
; CHECK-NEXT: .short 0
; CHECK-NEXT: .long 0
; CHECK: Ltmp1-_test2
; CHECK: .byte 1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 6
; CHECK-NEXT: .short 0
; CHECK-NEXT: .long 0
; CHECK: .byte 1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 3
; CHECK-NEXT: .short 0
; CHECK-NEXT: .long 0
; CHECK: Ltmp2-_test2
; CHECK: .byte 1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 3
; CHECK-NEXT: .short 0
; CHECK-NEXT: .long 0
; CHECK: .byte 1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .short 4
; CHECK-NEXT: .short 6
; CHECK-NEXT: .short 0
; CHECK-NEXT: .long 0
declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...)
declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32, i32)
attributes #0 = { "deopt-lowering"="live-in" }
attributes #1 = { "deopt-lowering"="live-through" }