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      1 ; RUN: llc < %s -relocation-model=static -mcpu=yonah | FileCheck %s
      2 
      3 ; The double argument is at 4(esp) which is 16-byte aligned, allowing us to
      4 ; fold the load into the andpd.
      5 
      6 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
      7 target triple = "i686-apple-darwin8"
      8 @G = external global double
      9 
     10 define void @test({ double, double }* byval  %z, double* %P) nounwind {
     11 entry:
     12 	%tmp3 = load double* @G, align 16		; <double> [#uses=1]
     13 	%tmp4 = tail call double @fabs( double %tmp3 ) readnone	; <double> [#uses=1]
     14         store volatile double %tmp4, double* %P
     15 	%tmp = getelementptr { double, double }* %z, i32 0, i32 0		; <double*> [#uses=1]
     16 	%tmp1 = load volatile double* %tmp, align 8		; <double> [#uses=1]
     17 	%tmp2 = tail call double @fabs( double %tmp1 ) readnone	; <double> [#uses=1]
     18     ; CHECK: andpd{{.*}}4(%esp), %xmm
     19 	%tmp6 = fadd double %tmp4, %tmp2		; <double> [#uses=1]
     20 	store volatile double %tmp6, double* %P, align 8
     21 	ret void
     22 }
     23 
     24 define void @test2() alignstack(16) nounwind {
     25 entry:
     26     ; CHECK: andl{{.*}}$-16, %esp
     27     ret void
     28 }
     29 
     30 ; Use a call to force a spill.
     31 define <2 x double> @test3(<2 x double> %x, <2 x double> %y) alignstack(32) nounwind {
     32 entry:
     33     ; CHECK: andl{{.*}}$-32, %esp
     34     call void @test2()
     35     %A = fmul <2 x double> %x, %y
     36     ret <2 x double> %A
     37 }
     38 
     39 declare double @fabs(double)
     40 
     41 ; The pointer is already known aligned, so and x,-16 is eliminable.
     42 define i32 @test4() nounwind {
     43 entry:
     44   %buffer = alloca [2048 x i8], align 16
     45   %0 = ptrtoint [2048 x i8]* %buffer to i32
     46   %and = and i32 %0, -16
     47   ret i32 %and
     48 ; CHECK-LABEL: test4:
     49 ; CHECK-NOT: and
     50 ; CHECK: ret
     51 }
     52