1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -verify-machineinstrs | FileCheck %s -check-prefix=X32 2*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -verify-machineinstrs | FileCheck %s -check-prefix=X64 3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnux32 -verify-machineinstrs | FileCheck %s -check-prefix=X32ABI 4*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mcpu=generic -mtriple=i686-linux -filetype=obj 5*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -filetype=obj 6*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux-gnux32 -filetype=obj 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Worker; Just to prevent the alloca from being optimized away 9*9880d681SAndroid Build Coastguard Workerdeclare void @dummy_use(i32*, i32) 10*9880d681SAndroid Build Coastguard Worker 11*9880d681SAndroid Build Coastguard Workerdefine i32 @test_basic(i32 %l) #0 { 12*9880d681SAndroid Build Coastguard Worker %mem = alloca i32, i32 %l 13*9880d681SAndroid Build Coastguard Worker call void @dummy_use (i32* %mem, i32 %l) 14*9880d681SAndroid Build Coastguard Worker %terminate = icmp eq i32 %l, 0 15*9880d681SAndroid Build Coastguard Worker br i1 %terminate, label %true, label %false 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Workertrue: 18*9880d681SAndroid Build Coastguard Worker ret i32 0 19*9880d681SAndroid Build Coastguard Worker 20*9880d681SAndroid Build Coastguard Workerfalse: 21*9880d681SAndroid Build Coastguard Worker %newlen = sub i32 %l, 1 22*9880d681SAndroid Build Coastguard Worker %retvalue = call i32 @test_basic(i32 %newlen) 23*9880d681SAndroid Build Coastguard Worker ret i32 %retvalue 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Worker; X32-LABEL: test_basic: 26*9880d681SAndroid Build Coastguard Worker 27*9880d681SAndroid Build Coastguard Worker; X32: cmpl %gs:48, %esp 28*9880d681SAndroid Build Coastguard Worker; X32-NEXT: ja .LBB0_2 29*9880d681SAndroid Build Coastguard Worker 30*9880d681SAndroid Build Coastguard Worker; X32: pushl $4 31*9880d681SAndroid Build Coastguard Worker; X32-NEXT: pushl $12 32*9880d681SAndroid Build Coastguard Worker; X32-NEXT: calll __morestack 33*9880d681SAndroid Build Coastguard Worker; X32-NEXT: ret 34*9880d681SAndroid Build Coastguard Worker 35*9880d681SAndroid Build Coastguard Worker; X32: movl %esp, %eax 36*9880d681SAndroid Build Coastguard Worker; X32: subl %ecx, %eax 37*9880d681SAndroid Build Coastguard Worker; X32-NEXT: cmpl %eax, %gs:48 38*9880d681SAndroid Build Coastguard Worker 39*9880d681SAndroid Build Coastguard Worker; X32: movl %eax, %esp 40*9880d681SAndroid Build Coastguard Worker 41*9880d681SAndroid Build Coastguard Worker; X32: subl $12, %esp 42*9880d681SAndroid Build Coastguard Worker; X32-NEXT: pushl %ecx 43*9880d681SAndroid Build Coastguard Worker; X32-NEXT: calll __morestack_allocate_stack_space 44*9880d681SAndroid Build Coastguard Worker; X32-NEXT: addl $16, %esp 45*9880d681SAndroid Build Coastguard Worker 46*9880d681SAndroid Build Coastguard Worker; X64-LABEL: test_basic: 47*9880d681SAndroid Build Coastguard Worker 48*9880d681SAndroid Build Coastguard Worker; X64: cmpq %fs:112, %rsp 49*9880d681SAndroid Build Coastguard Worker; X64-NEXT: ja .LBB0_2 50*9880d681SAndroid Build Coastguard Worker 51*9880d681SAndroid Build Coastguard Worker; X64: movabsq $24, %r10 52*9880d681SAndroid Build Coastguard Worker; X64-NEXT: movabsq $0, %r11 53*9880d681SAndroid Build Coastguard Worker; X64-NEXT: callq __morestack 54*9880d681SAndroid Build Coastguard Worker; X64-NEXT: ret 55*9880d681SAndroid Build Coastguard Worker 56*9880d681SAndroid Build Coastguard Worker; X64: movq %rsp, %[[RDI:rdi|rax]] 57*9880d681SAndroid Build Coastguard Worker; X64: subq %{{.*}}, %[[RDI]] 58*9880d681SAndroid Build Coastguard Worker; X64-NEXT: cmpq %[[RDI]], %fs:112 59*9880d681SAndroid Build Coastguard Worker 60*9880d681SAndroid Build Coastguard Worker; X64: movq %[[RDI]], %rsp 61*9880d681SAndroid Build Coastguard Worker 62*9880d681SAndroid Build Coastguard Worker; X64: movq %{{.*}}, %rdi 63*9880d681SAndroid Build Coastguard Worker; X64-NEXT: callq __morestack_allocate_stack_space 64*9880d681SAndroid Build Coastguard Worker; X64: movq %rax, %rdi 65*9880d681SAndroid Build Coastguard Worker 66*9880d681SAndroid Build Coastguard Worker; X32ABI-LABEL: test_basic: 67*9880d681SAndroid Build Coastguard Worker 68*9880d681SAndroid Build Coastguard Worker; X32ABI: cmpl %fs:64, %esp 69*9880d681SAndroid Build Coastguard Worker; X32ABI-NEXT: ja .LBB0_2 70*9880d681SAndroid Build Coastguard Worker 71*9880d681SAndroid Build Coastguard Worker; X32ABI: movl $24, %r10d 72*9880d681SAndroid Build Coastguard Worker; X32ABI-NEXT: movl $0, %r11d 73*9880d681SAndroid Build Coastguard Worker; X32ABI-NEXT: callq __morestack 74*9880d681SAndroid Build Coastguard Worker; X32ABI-NEXT: ret 75*9880d681SAndroid Build Coastguard Worker 76*9880d681SAndroid Build Coastguard Worker; X32ABI: movl %esp, %[[EDI:edi|eax]] 77*9880d681SAndroid Build Coastguard Worker; X32ABI: subl %{{.*}}, %[[EDI]] 78*9880d681SAndroid Build Coastguard Worker; X32ABI-NEXT: cmpl %[[EDI]], %fs:64 79*9880d681SAndroid Build Coastguard Worker 80*9880d681SAndroid Build Coastguard Worker; X32ABI: movl %[[EDI]], %esp 81*9880d681SAndroid Build Coastguard Worker 82*9880d681SAndroid Build Coastguard Worker; X32ABI: movl %{{.*}}, %edi 83*9880d681SAndroid Build Coastguard Worker; X32ABI-NEXT: callq __morestack_allocate_stack_space 84*9880d681SAndroid Build Coastguard Worker; X32ABI: movl %eax, %edi 85*9880d681SAndroid Build Coastguard Worker 86*9880d681SAndroid Build Coastguard Worker} 87*9880d681SAndroid Build Coastguard Worker 88*9880d681SAndroid Build Coastguard Workerattributes #0 = { "split-stack" } 89