Home | History | Annotate | Download | only in X86
      1 ; RUN: llc -mcpu=generic -mtriple=i686-pc-windows-msvc -mattr=+sse < %s | FileCheck %s
      2 
      3 ; Check proper alignment of spilled vector
      4 
      5 ; CHECK-LABEL: spill_ok
      6 ; CHECK: subl    $32, %esp
      7 ; CHECK: movaps  %xmm3, (%esp)
      8 ; CHECK: movl    $0, 16(%esp)
      9 ; CHECK: calll   _bar
     10 define void @spill_ok(i32, <16 x float> *) {
     11 entry:
     12   %2 = alloca i32, i32 %0
     13   %3 = load <16 x float>, <16 x float> * %1, align 64
     14   tail call void @bar(<16 x float> %3, i32 0) nounwind
     15   ret void
     16 }
     17 
     18 declare void @bar(<16 x float> %a, i32 %b)
     19 
     20 ; Check that proper alignment of spilled vector does not affect vargs
     21 
     22 ; CHECK-LABEL: vargs_not_affected
     23 ; CHECK: leal    28(%ebp), %eax
     24 define i32 @vargs_not_affected(<4 x float> %v, i8* %f, ...) {
     25 entry:
     26   %ap = alloca i8*, align 4
     27   %0 = bitcast i8** %ap to i8*
     28   call void @llvm.va_start(i8* %0)
     29   %argp.cur = load i8*, i8** %ap, align 4
     30   %argp.next = getelementptr inbounds i8, i8* %argp.cur, i32 4
     31   store i8* %argp.next, i8** %ap, align 4
     32   %1 = bitcast i8* %argp.cur to i32*
     33   %2 = load i32, i32* %1, align 4
     34   call void @llvm.va_end(i8* %0)
     35   ret i32 %2
     36 }
     37 
     38 declare void @llvm.va_start(i8*)
     39 
     40 declare void @llvm.va_end(i8*)
     41