llvm/test/CodeGen/X86/win64_eh.ll
Nico Weber 2cef100c63 Teach fast isel about the win64 calling convention.
This mostly just works.

Vectorcall rets are still not supported.

The win64_eh test change is because fast isel doesn't use rsi for temporary
computations, so it doesn't need to be pushed. The test case I'm changing was
originally added to test pushes, but by now there are other test cases in that
file exercising that code path.

https://reviews.llvm.org/D22422


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275607 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-15 20:18:37 +00:00

172 lines
4.3 KiB
LLVM

; RUN: llc < %s -O0 -mattr=sse2 -mtriple=x86_64-pc-windows-itanium | FileCheck %s -check-prefix=WIN64 -check-prefix=NORM
; RUN: llc < %s -O0 -mattr=sse2 -mtriple=x86_64-pc-mingw32 | FileCheck %s -check-prefix=WIN64 -check-prefix=NORM
; RUN: llc < %s -O0 -mattr=sse2 -mtriple=x86_64-pc-mingw32 -mcpu=atom | FileCheck %s -check-prefix=WIN64 -check-prefix=ATOM
; Check function without prolog
define void @foo0() uwtable {
entry:
ret void
}
; WIN64-LABEL: foo0:
; WIN64: .seh_proc foo0
; WIN64: .seh_endprologue
; WIN64: ret
; WIN64: .seh_endproc
; Checks a small stack allocation
define void @foo1() uwtable {
entry:
%baz = alloca [2000 x i16], align 2
ret void
}
; WIN64-LABEL: foo1:
; WIN64: .seh_proc foo1
; NORM: subq $4000, %rsp
; ATOM: leaq -4000(%rsp), %rsp
; WIN64: .seh_stackalloc 4000
; WIN64: .seh_endprologue
; WIN64: addq $4000, %rsp
; WIN64: ret
; WIN64: .seh_endproc
; Checks a stack allocation requiring call to __chkstk/___chkstk_ms
define void @foo2() uwtable {
entry:
%baz = alloca [4000 x i16], align 2
ret void
}
; WIN64-LABEL: foo2:
; WIN64: .seh_proc foo2
; WIN64: movl $8000, %eax
; WIN64: callq {{__chkstk|___chkstk_ms}}
; WIN64: subq %rax, %rsp
; WIN64: .seh_stackalloc 8000
; WIN64: .seh_endprologue
; WIN64: addq $8000, %rsp
; WIN64: ret
; WIN64: .seh_endproc
define i32 @foo3(i32 %f_arg, i32 %e_arg, i32 %d_arg, i32 %c_arg, i32 %b_arg, i32 %a_arg) uwtable {
entry:
%a = alloca i32
%b = alloca i32
%c = alloca i32
%d = alloca i32
%e = alloca i32
%f = alloca i32
store i32 %a_arg, i32* %a
store i32 %b_arg, i32* %b
store i32 %c_arg, i32* %c
store i32 %d_arg, i32* %d
store i32 %e_arg, i32* %e
store i32 %f_arg, i32* %f
%tmp = load i32, i32* %a
%tmp1 = mul i32 %tmp, 2
%tmp2 = load i32, i32* %b
%tmp3 = mul i32 %tmp2, 3
%tmp4 = add i32 %tmp1, %tmp3
%tmp5 = load i32, i32* %c
%tmp6 = mul i32 %tmp5, 5
%tmp7 = add i32 %tmp4, %tmp6
%tmp8 = load i32, i32* %d
%tmp9 = mul i32 %tmp8, 7
%tmp10 = add i32 %tmp7, %tmp9
%tmp11 = load i32, i32* %e
%tmp12 = mul i32 %tmp11, 11
%tmp13 = add i32 %tmp10, %tmp12
%tmp14 = load i32, i32* %f
%tmp15 = mul i32 %tmp14, 13
%tmp16 = add i32 %tmp13, %tmp15
ret i32 %tmp16
}
; WIN64-LABEL: foo3:
; WIN64: .seh_proc foo3
; NORM: subq $24, %rsp
; ATOM: leaq -24(%rsp), %rsp
; WIN64: .seh_stackalloc 24
; WIN64: .seh_endprologue
; WIN64: addq $24, %rsp
; WIN64: ret
; WIN64: .seh_endproc
; Check emission of eh handler and handler data
declare i32 @_d_eh_personality(i32, i32, i64, i8*, i8*)
declare void @_d_eh_resume_unwind(i8*)
declare i32 @bar()
define i32 @foo4() #0 personality i32 (i32, i32, i64, i8*, i8*)* @_d_eh_personality {
entry:
%step = alloca i32, align 4
store i32 0, i32* %step
%tmp = load i32, i32* %step
%tmp1 = invoke i32 @bar()
to label %finally unwind label %landingpad
finally:
store i32 1, i32* %step
br label %endtryfinally
landingpad:
%landing_pad = landingpad { i8*, i32 }
cleanup
%tmp3 = extractvalue { i8*, i32 } %landing_pad, 0
store i32 2, i32* %step
call void @_d_eh_resume_unwind(i8* %tmp3)
unreachable
endtryfinally:
%tmp10 = load i32, i32* %step
ret i32 %tmp10
}
; WIN64-LABEL: foo4:
; WIN64: .seh_proc foo4
; WIN64: .seh_handler _d_eh_personality, @unwind, @except
; NORM: subq $56, %rsp
; ATOM: leaq -56(%rsp), %rsp
; WIN64: .seh_stackalloc 56
; WIN64: .seh_endprologue
; WIN64: addq $56, %rsp
; WIN64: ret
; WIN64: .seh_handlerdata
; WIN64: .seh_endproc
; Check stack re-alignment and xmm spilling
define void @foo5() uwtable {
entry:
%s = alloca i32, align 64
call void asm sideeffect "", "~{rbx},~{rdi},~{xmm6},~{xmm7}"()
ret void
}
; WIN64-LABEL: foo5:
; WIN64: .seh_proc foo5
; WIN64: pushq %rbp
; WIN64: .seh_pushreg 5
; WIN64: pushq %rdi
; WIN64: .seh_pushreg 7
; WIN64: pushq %rbx
; WIN64: .seh_pushreg 3
; NORM: subq $96, %rsp
; ATOM: leaq -96(%rsp), %rsp
; WIN64: .seh_stackalloc 96
; WIN64: leaq 96(%rsp), %rbp
; WIN64: .seh_setframe 5, 96
; WIN64: movaps %xmm7, -16(%rbp) # 16-byte Spill
; WIN64: .seh_savexmm 7, 80
; WIN64: movaps %xmm6, -32(%rbp) # 16-byte Spill
; WIN64: .seh_savexmm 6, 64
; WIN64: .seh_endprologue
; WIN64: andq $-64, %rsp
; WIN64: movaps -32(%rbp), %xmm6 # 16-byte Reload
; WIN64: movaps -16(%rbp), %xmm7 # 16-byte Reload
; WIN64: movq %rbp, %rsp
; WIN64: popq %rbx
; WIN64: popq %rdi
; WIN64: popq %rbp
; WIN64: retq
; WIN64: .seh_endproc