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; RUN: llc < %s -stack-symbol-ordering=0 -tailcallopt -code-model=medium -stack-alignment=8 -mtriple=x86_64-linux-gnu -mcpu=opteron | FileCheck %s
; Check the HiPE calling convention works (x86-64)
define void @zap(i64 %a, i64 %b) nounwind {
entry:
; CHECK: movq %rsi, %rax
; CHECK-NEXT: movl $8, %ecx
; CHECK-NEXT: movl $9, %r8d
; CHECK-NEXT: movq %rdi, %rsi
; CHECK-NEXT: movq %rax, %rdx
; CHECK-NEXT: callq addfour
%0 = call cc 11 {i64, i64, i64} @addfour(i64 undef, i64 undef, i64 %a, i64 %b, i64 8, i64 9)
%res = extractvalue {i64, i64, i64} %0, 2
; CHECK: movl $1, %edx
; CHECK-NEXT: movl $2, %ecx
; CHECK-NEXT: movl $3, %r8d
; CHECK-NEXT: movq %rax, %r9
; CHECK: callq foo
tail call void @foo(i64 undef, i64 undef, i64 1, i64 2, i64 3, i64 %res) nounwind
ret void
}
define cc 11 {i64, i64, i64} @addfour(i64 %hp, i64 %p, i64 %x, i64 %y, i64 %z, i64 %w) nounwind {
entry:
; CHECK: leaq (%rsi,%rdx), %rax
; CHECK-NEXT: addq %rcx, %rax
; CHECK-NEXT: addq %r8, %rax
%0 = add i64 %x, %y
%1 = add i64 %0, %z
%2 = add i64 %1, %w
; CHECK: ret
%res = insertvalue {i64, i64, i64} undef, i64 %2, 2
ret {i64, i64, i64} %res
}
define cc 11 void @foo(i64 %hp, i64 %p, i64 %arg0, i64 %arg1, i64 %arg2, i64 %arg3) nounwind {
entry:
; CHECK: movq %r15, 40(%rsp)
; CHECK-NEXT: movq %rbp, 32(%rsp)
; CHECK-NEXT: movq %rsi, 24(%rsp)
; CHECK-NEXT: movq %rdx, 16(%rsp)
; CHECK-NEXT: movq %rcx, 8(%rsp)
; CHECK-NEXT: movq %r8, (%rsp)
%hp_var = alloca i64
%p_var = alloca i64
%arg0_var = alloca i64
%arg1_var = alloca i64
%arg2_var = alloca i64
%arg3_var = alloca i64
store i64 %hp, i64* %hp_var
store i64 %p, i64* %p_var
store i64 %arg0, i64* %arg0_var
store i64 %arg1, i64* %arg1_var
store i64 %arg2, i64* %arg2_var
store i64 %arg3, i64* %arg3_var
; Loads are reading values just writen from corresponding register and are therefore noops.
%0 = load i64, i64* %hp_var
%1 = load i64, i64* %p_var
%2 = load i64, i64* %arg0_var
%3 = load i64, i64* %arg1_var
%4 = load i64, i64* %arg2_var
%5 = load i64, i64* %arg3_var
; CHECK: jmp bar
tail call cc 11 void @bar(i64 %0, i64 %1, i64 %2, i64 %3, i64 %4, i64 %5) nounwind
ret void
}
define cc 11 void @baz() nounwind {
%tmp_clos = load i64, i64* @clos
%tmp_clos2 = inttoptr i64 %tmp_clos to i64*
%indirect_call = bitcast i64* %tmp_clos2 to void (i64, i64, i64)*
; CHECK: movl $42, %esi
; CHECK-NEXT: jmpq *(%rax)
tail call cc 11 void %indirect_call(i64 undef, i64 undef, i64 42) nounwind
ret void
}
; Sanity-check the tail call sequence. Number of arguments was chosen as to
; expose a bug where the tail call sequence clobbered the stack.
define cc 11 { i64, i64, i64 } @tailcaller(i64 %hp, i64 %p) #0 {
; CHECK: movl $15, %esi
; CHECK-NEXT: movl $31, %edx
; CHECK-NEXT: movl $47, %ecx
; CHECK-NEXT: movl $63, %r8d
; CHECK-NEXT: popq %rax
; CHECK-NEXT: jmp tailcallee
%ret = tail call cc11 { i64, i64, i64 } @tailcallee(i64 %hp, i64 %p, i64 15,
i64 31, i64 47, i64 63, i64 79) #1
ret { i64, i64, i64 } %ret
}
!hipe.literals = !{ !0, !1, !2 }
!0 = !{ !"P_NSP_LIMIT", i32 160 }
!1 = !{ !"X86_LEAF_WORDS", i32 24 }
!2 = !{ !"AMD64_LEAF_WORDS", i32 24 }
@clos = external constant i64
declare cc 11 void @bar(i64, i64, i64, i64, i64, i64)
declare cc 11 { i64, i64, i64 } @tailcallee(i64, i64, i64, i64, i64, i64, i64)
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