;; Check that this produces the expected assembly output
; RUN: llc -mtriple=thumbv7-windows -o - %s -verify-machineinstrs | FileCheck %s
;; Also try to write an object file, which verifies that the SEH opcodes
;; match the actual prologue/epilogue length.
; RUN: llc -mtriple=thumbv7-windows -filetype=obj -o %t.obj %s -verify-machineinstrs
; CHECK-LABEL: alloc_local:
; CHECK-NEXT: .seh_proc alloc_local
; CHECK-NEXT: @ %bb.0: @ %entry
; CHECK-NEXT: push.w {r4, r5, r6, r7, r8, r9, r10}
; CHECK-NEXT: .seh_save_regs_w {r4-r10}
; CHECK-NEXT: sub sp, #4
; CHECK-NEXT: .seh_stackalloc 4
; CHECK-NEXT: vpush {d8, d9, d10, d11, d12, d13, d14, d15}
; CHECK-NEXT: .seh_save_fregs {d8-d15}
; CHECK-NEXT: push.w {r11, lr}
; CHECK-NEXT: .seh_save_regs_w {r11, lr}
; CHECK-NEXT: mov r11, sp
; CHECK-NEXT: .seh_save_sp r11
; CHECK-NEXT: .seh_endprologue
; CHECK-NEXT: movw r4, #1256
; CHECK-NEXT: bl __chkstk
; CHECK-NEXT: sub.w sp, sp, r4
; CHECK-NEXT: mov r4, sp
; CHECK-NEXT: bfc r4, #0, #4
; CHECK-NEXT: mov sp, r4
; CHECK: ldr.w [[TMP:r[0-9]]], [r11, #104]
; CHECK: mov r0, [[TMP]]
; CHECK: .seh_startepilogue
; CHECK-NEXT: mov sp, r11
; CHECK-NEXT: .seh_save_sp r11
; CHECK-NEXT: pop.w {r11, lr}
; CHECK-NEXT: .seh_save_regs_w {r11, lr}
; CHECK-NEXT: vpop {d8, d9, d10, d11, d12, d13, d14, d15}
; CHECK-NEXT: .seh_save_fregs {d8-d15}
; CHECK-NEXT: add sp, #4
; CHECK-NEXT: .seh_stackalloc 4
; CHECK-NEXT: pop.w {r4, r5, r6, r7, r8, r9, r10}
; CHECK-NEXT: .seh_save_regs_w {r4-r10}
; CHECK-NEXT: bx lr
; CHECK-NEXT: .seh_nop
; CHECK-NEXT: .seh_endepilogue
; CHECK-NEXT: .seh_endproc
define arm_aapcs_vfpcc void @alloc_local(i32 noundef %a, i32 noundef %b, i32 noundef %c, i32 noundef %d, i32 noundef %e) uwtable {
entry:
%buf2 = alloca [5000 x i8], align 16
%vla = alloca i8, i32 %a, align 1
call void @llvm.lifetime.start.p0(i64 5000, ptr nonnull %buf2) #3
call arm_aapcs_vfpcc void @other(i32 noundef %e, ptr noundef nonnull %vla, ptr noundef nonnull %buf2)
call void asm sideeffect "", "~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12}"()
call void asm sideeffect "", "~{d8},~{d9},~{d10},~{d11},~{d12},~{d13},~{d14},~{d15}"()
call void @llvm.lifetime.end.p0(i64 5000, ptr nonnull %buf2) #3
ret void
}
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
declare arm_aapcs_vfpcc void @other(i32 noundef, ptr noundef, ptr noundef)
; CHECK-LABEL: everything_varargs:
; CHECK-NEXT: .seh_proc everything_varargs
; CHECK-NEXT: @ %bb.0: @ %entry
; CHECK-NEXT: sub sp, #12
; CHECK-NEXT: .seh_stackalloc 12
; CHECK-NEXT: push.w {r4, r5, r6, r7, r8, r9}
; CHECK-NEXT: .seh_save_regs_w {r4-r9}
; CHECK-NEXT: sub sp, #4
; CHECK-NEXT: .seh_stackalloc 4
; CHECK-NEXT: vpush {d8, d9, d10, d11, d12, d13, d14, d15}
; CHECK-NEXT: .seh_save_fregs {d8-d15}
; CHECK-NEXT: push.w {r11, lr}
; CHECK-NEXT: .seh_save_regs_w {r11, lr}
; CHECK-NEXT: mov r11, sp
; CHECK-NEXT: .seh_save_sp r11
; CHECK-NEXT: .seh_endprologue
; CHECK-NEXT: movw r4, #1258
; CHECK-NEXT: bl __chkstk
; CHECK-NEXT: sub.w sp, sp, r4
; CHECK-NEXT: mov r4, sp
; CHECK-NEXT: bfc r4, #0, #4
; CHECK-NEXT: mov sp, r4
; CHECK: .seh_startepilogue
; CHECK-NEXT: mov sp, r11
; CHECK-NEXT: .seh_save_sp r11
; CHECK-NEXT: pop.w {r11, lr}
; CHECK-NEXT: .seh_save_regs_w {r11, lr}
; CHECK-NEXT: vpop {d8, d9, d10, d11, d12, d13, d14, d15}
; CHECK-NEXT: .seh_save_fregs {d8-d15}
; CHECK-NEXT: add sp, #4
; CHECK-NEXT: .seh_stackalloc 4
; CHECK-NEXT: pop.w {r4, r5, r6, r7, r8, r9}
; CHECK-NEXT: .seh_save_regs_w {r4-r9}
; CHECK-NEXT: add sp, #12
; CHECK-NEXT: .seh_stackalloc 12
; CHECK-NEXT: bx lr
; CHECK-NEXT: .seh_nop
; CHECK-NEXT: .seh_endepilogue
; CHECK-NEXT: .seh_endproc
define arm_aapcs_vfpcc void @everything_varargs(i32 noundef %a, ...) {
entry:
%buf2 = alloca [5000 x i8], align 16
%ap = alloca ptr, align 4
%vla = alloca i8, i32 %a, align 1
call void @llvm.lifetime.start.p0(i64 5000, ptr nonnull %buf2)
call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %ap)
call void @llvm.va_start(ptr nonnull %ap)
%0 = load ptr, ptr %ap, align 4
call arm_aapcs_vfpcc void @other2(i32 noundef %a, ptr noundef nonnull %vla, ptr noundef nonnull %buf2, ptr noundef %0)
call void @llvm.va_end(ptr nonnull %ap)
call void asm sideeffect "", "~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r11},~{r12}"()
call void asm sideeffect "", "~{d8},~{d9},~{d10},~{d11},~{d12},~{d13},~{d14},~{d15}"()
call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %ap)
call void @llvm.lifetime.end.p0(i64 5000, ptr nonnull %buf2)
ret void
}
; CHECK-LABEL: novector_varargs:
; CHECK-NEXT: .seh_proc novector_varargs
; CHECK-NEXT: @ %bb.0: @ %entry
; CHECK-NEXT: sub sp, #12
; CHECK-NEXT: .seh_stackalloc 12
; CHECK-NEXT: push.w {r4, r5, r6, r7, r8, r9}
; CHECK-NEXT: .seh_save_regs_w {r4-r9}
; CHECK-NEXT: push.w {r11, lr}
; CHECK-NEXT: .seh_save_regs_w {r11, lr}
; CHECK-NEXT: mov r11, sp
; CHECK-NEXT: .seh_save_sp r11
; CHECK-NEXT: .seh_endprologue
; CHECK-NEXT: movw r4, #1259
; CHECK-NEXT: bl __chkstk
; CHECK-NEXT: sub.w sp, sp, r4
; CHECK-NEXT: mov r4, sp
; CHECK-NEXT: bfc r4, #0, #4
; CHECK-NEXT: mov sp, r4
; CHECK: .seh_startepilogue
; CHECK-NEXT: mov sp, r11
; CHECK-NEXT: .seh_save_sp r11
; CHECK-NEXT: pop.w {r11, lr}
; CHECK-NEXT: .seh_save_regs_w {r11, lr}
; CHECK-NEXT: pop.w {r4, r5, r6, r7, r8, r9}
; CHECK-NEXT: .seh_save_regs_w {r4-r9}
; CHECK-NEXT: add sp, #12
; CHECK-NEXT: .seh_stackalloc 12
; CHECK-NEXT: bx lr
; CHECK-NEXT: .seh_nop
; CHECK-NEXT: .seh_endepilogue
; CHECK-NEXT: .seh_endproc
define arm_aapcs_vfpcc void @novector_varargs(i32 noundef %a, ...) {
entry:
%buf2 = alloca [5000 x i8], align 16
%ap = alloca ptr, align 4
%vla = alloca i8, i32 %a, align 1
call void @llvm.lifetime.start.p0(i64 5000, ptr nonnull %buf2)
call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %ap)
call void @llvm.va_start(ptr nonnull %ap)
%0 = load ptr, ptr %ap, align 4
call arm_aapcs_vfpcc void @other2(i32 noundef %a, ptr noundef nonnull %vla, ptr noundef nonnull %buf2, ptr noundef %0)
call void @llvm.va_end(ptr nonnull %ap)
call void asm sideeffect "", "~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r11},~{r12}"()
call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %ap)
call void @llvm.lifetime.end.p0(i64 5000, ptr nonnull %buf2)
ret void
}
declare void @llvm.va_start(ptr)
declare void @llvm.va_end(ptr)
declare arm_aapcs_vfpcc void @other2(i32 noundef, ptr noundef, ptr noundef, ptr noundef)