llvm-project/llvm/test/CodeGen/X86/vastart-defs-eflags.ll

58 lines
2.1 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc %s -o - | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.10.0"
; Check that vastart handling doesn't get between testb and je for the branch.
define i32 @check_flag(i32 %flags, ...) nounwind {
; CHECK-LABEL: check_flag:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: subq $56, %rsp
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: je LBB0_2
; CHECK-NEXT: ## %bb.1: ## %entry
; CHECK-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movaps %xmm1, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movaps %xmm2, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movaps %xmm3, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movaps %xmm4, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movaps %xmm5, (%rsp)
; CHECK-NEXT: movaps %xmm6, {{[0-9]+}}(%rsp)
; CHECK-NEXT: movaps %xmm7, {{[0-9]+}}(%rsp)
; CHECK-NEXT: LBB0_2: ## %entry
; CHECK-NEXT: movq %r9, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movq %r8, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movq %rcx, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movq %rdx, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movq %rsi, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testl $512, %edi ## imm = 0x200
; CHECK-NEXT: je LBB0_4
; CHECK-NEXT: ## %bb.3: ## %if.then
; CHECK-NEXT: leaq -{{[0-9]+}}(%rsp), %rax
; CHECK-NEXT: movq %rax, 16
; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rax
; CHECK-NEXT: movq %rax, 8
; CHECK-NEXT: movl $48, 4
; CHECK-NEXT: movl $8, 0
; CHECK-NEXT: movl $1, %eax
; CHECK-NEXT: LBB0_4: ## %if.end
; CHECK-NEXT: addq $56, %rsp
; CHECK-NEXT: retq
entry:
%and = and i32 %flags, 512
%tobool = icmp eq i32 %and, 0
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %entry
call void @llvm.va_start(i8* null)
br label %if.end
if.end: ; preds = %entry, %if.then
%hasflag = phi i32 [ 1, %if.then ], [ 0, %entry ]
ret i32 %hasflag
}
declare void @llvm.va_start(i8*) nounwind