1; RUN: llc -verify-machineinstrs -mcpu=corei7-avx %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=NO-FLAGS 2target 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" 3target triple = "x86_64-apple-macosx10.9.0" 4 5%struct.__va_list_tag = type { i32, i32, ptr, ptr } 6 7; Check that vastart gets the right thing. 8define i32 @sum(i32 %count, ...) nounwind optsize ssp uwtable { 9; CHECK: testb %al, %al 10; CHECK-NEXT: je 11; CHECK-NEXT: ## %bb.{{[0-9]+}}: 12; CHECK-NEXT: vmovaps %xmm0, 48(%rsp) 13; CHECK-NEXT: vmovaps %xmm1, 64(%rsp) 14; CHECK-NEXT: vmovaps %xmm2, 80(%rsp) 15; CHECK-NEXT: vmovaps %xmm3, 96(%rsp) 16; CHECK-NEXT: vmovaps %xmm4, 112(%rsp) 17; CHECK-NEXT: vmovaps %xmm5, 128(%rsp) 18; CHECK-NEXT: vmovaps %xmm6, 144(%rsp) 19; CHECK-NEXT: vmovaps %xmm7, 160(%rsp) 20 21; Check that [EFLAGS] hasn't been pulled in. 22; NO-FLAGS-NOT: %flags 23 24 %ap = alloca [1 x %struct.__va_list_tag], align 16 25 call void @llvm.va_start(ptr %ap) 26 %1 = icmp sgt i32 %count, 0 27 br i1 %1, label %.lr.ph, label %._crit_edge 28 29.lr.ph: ; preds = %0 30 %2 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %ap, i64 0, i64 0, i32 2 31 %.pre = load i32, ptr %ap, align 16 32 br label %3 33 34; <label>:5 ; preds = %.lr.ph, %11 35 %4 = phi i32 [ %.pre, %.lr.ph ], [ %12, %11 ] 36 %.01 = phi i32 [ %count, %.lr.ph ], [ %13, %11 ] 37 %5 = icmp ult i32 %4, 41 38 br i1 %5, label %6, label %8 39 40; <label>:8 ; preds = %3 41 %7 = add i32 %4, 8 42 store i32 %7, ptr %ap, align 16 43 br label %11 44 45; <label>:10 ; preds = %3 46 %9 = load ptr, ptr %2, align 8 47 %10 = getelementptr i8, ptr %9, i64 8 48 store ptr %10, ptr %2, align 8 49 br label %11 50 51; <label>:13 ; preds = %8, %6 52 %12 = phi i32 [ %4, %8 ], [ %7, %6 ] 53 %13 = add nsw i32 %.01, 1 54 %14 = icmp sgt i32 %13, 0 55 br i1 %14, label %3, label %._crit_edge 56 57._crit_edge: ; preds = %11, %0 58 %.0.lcssa = phi i32 [ %count, %0 ], [ %13, %11 ] 59 call void @llvm.va_end(ptr %ap) 60 ret i32 %.0.lcssa 61} 62 63declare void @llvm.va_start(ptr) nounwind 64 65declare void @llvm.va_end(ptr) nounwind 66