; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -verify-machineinstrs -O3 < %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, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @bar, i32 0, i32 2, i32 0, i32 1, 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, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @bar, i32 0, i32 2, i32 0, i32 2, i32 %a, i32 %b) call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @bar, i32 0, i32 2, i32 0, i32 2, 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, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @bar, i32 0, i32 2, i32 0, i32 9, 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, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @bar, i32 0, i32 2, i32 0, i32 26, 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 i32 addrspace(1)* @test5(i32 %a, i32 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, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @bar, i32 0, i32 2, i32 0, i32 1, i32 %a, i32 addrspace(1)* %p, i32 addrspace(1)* %p) %p2 = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %token, i32 9, i32 9) ret i32 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 %ebx, {{[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, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @baz, i32 0, i32 0, i32 0, i32 1, i32 %a) call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @bar, i32 0, i32 2, i32 0, i32 1, i32 %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.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...) declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token, i32, i32) attributes #0 = { "deopt-lowering"="live-in" } attributes #1 = { "deopt-lowering"="live-through" }