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llvm-mirror/test/CodeGen/X86/legalize-vaarg.ll
Simon Pilgrim b3e775ce41 [SelectionDAG] Legalize vaargs that require vector splitting
This adds vector splitting for vaarg instructions during type legalization

Committed on behalf of @luke (Luke Lau)

Differential Revision: https://reviews.llvm.org/D60762

llvm-svn: 363671
2019-06-18 12:24:02 +00:00

80 lines
2.6 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
;RUN: llc < %s -mtriple=x86_64-- -mattr=avx | FileCheck %s
define <32 x i32> @test_large_vec_vaarg(i32 %n, ...) {
; CHECK-LABEL: test_large_vec_vaarg:
; CHECK: # %bb.0:
; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %ecx
; CHECK-NEXT: cmpl $24, %ecx
; CHECK-NEXT: jae .LBB0_2
; CHECK-NEXT: # %bb.1:
; CHECK-NEXT: movq {{[0-9]+}}(%rsp), %rax
; CHECK-NEXT: addq %rcx, %rax
; CHECK-NEXT: addl $8, %ecx
; CHECK-NEXT: movl %ecx, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: jmp .LBB0_3
; CHECK-NEXT: .LBB0_2:
; CHECK-NEXT: movq (%rsp), %rax
; CHECK-NEXT: addq $31, %rax
; CHECK-NEXT: andq $-32, %rax
; CHECK-NEXT: leaq 32(%rax), %rcx
; CHECK-NEXT: movq %rcx, (%rsp)
; CHECK-NEXT: .LBB0_3:
; CHECK-NEXT: vmovaps (%rax), %ymm0
; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %ecx
; CHECK-NEXT: cmpl $24, %ecx
; CHECK-NEXT: jae .LBB0_5
; CHECK-NEXT: # %bb.4:
; CHECK-NEXT: movq {{[0-9]+}}(%rsp), %rax
; CHECK-NEXT: addq %rcx, %rax
; CHECK-NEXT: addl $8, %ecx
; CHECK-NEXT: movl %ecx, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: jmp .LBB0_6
; CHECK-NEXT: .LBB0_5:
; CHECK-NEXT: movq (%rsp), %rax
; CHECK-NEXT: addq $31, %rax
; CHECK-NEXT: andq $-32, %rax
; CHECK-NEXT: leaq 32(%rax), %rcx
; CHECK-NEXT: movq %rcx, (%rsp)
; CHECK-NEXT: .LBB0_6:
; CHECK-NEXT: vmovaps (%rax), %ymm1
; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %ecx
; CHECK-NEXT: cmpl $24, %ecx
; CHECK-NEXT: jae .LBB0_8
; CHECK-NEXT: # %bb.7:
; CHECK-NEXT: movq {{[0-9]+}}(%rsp), %rax
; CHECK-NEXT: addq %rcx, %rax
; CHECK-NEXT: addl $8, %ecx
; CHECK-NEXT: movl %ecx, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: jmp .LBB0_9
; CHECK-NEXT: .LBB0_8:
; CHECK-NEXT: movq (%rsp), %rax
; CHECK-NEXT: addq $31, %rax
; CHECK-NEXT: andq $-32, %rax
; CHECK-NEXT: leaq 32(%rax), %rcx
; CHECK-NEXT: movq %rcx, (%rsp)
; CHECK-NEXT: .LBB0_9:
; CHECK-NEXT: vmovaps (%rax), %ymm2
; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %ecx
; CHECK-NEXT: cmpl $24, %ecx
; CHECK-NEXT: jae .LBB0_11
; CHECK-NEXT: # %bb.10:
; CHECK-NEXT: movq {{[0-9]+}}(%rsp), %rax
; CHECK-NEXT: addq %rcx, %rax
; CHECK-NEXT: addl $8, %ecx
; CHECK-NEXT: movl %ecx, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: vmovaps (%rax), %ymm3
; CHECK-NEXT: retq
; CHECK-NEXT: .LBB0_11:
; CHECK-NEXT: movq (%rsp), %rax
; CHECK-NEXT: addq $31, %rax
; CHECK-NEXT: andq $-32, %rax
; CHECK-NEXT: leaq 32(%rax), %rcx
; CHECK-NEXT: movq %rcx, (%rsp)
; CHECK-NEXT: vmovaps (%rax), %ymm3
; CHECK-NEXT: retq
%args = alloca i8*, align 4
%x = va_arg i8** %args, <32 x i32>
ret <32 x i32> %x
}