1 ; RUN: llc < %s -relocation-model=static -mcpu=yonah | FileCheck %s
3 ; The double argument is at 4(esp) which is 16-byte aligned, but we
4 ; are required to read in extra bytes of memory in order to fold the
5 ; load. Bad Things may happen when reading/processing undefined bytes,
6 ; so don't fold the load.
7 ; PR22371 / http://reviews.llvm.org/D7474
9 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"
10 target triple = "i686-apple-darwin8"
11 @G = external global double
13 define void @test({ double, double }* byval %z, double* %P) nounwind {
15 %tmp3 = load double, double* @G, align 16 ; <double> [#uses=1]
16 %tmp4 = tail call double @fabs( double %tmp3 ) readnone ; <double> [#uses=1]
17 store volatile double %tmp4, double* %P
18 %tmp = getelementptr { double, double }, { double, double }* %z, i32 0, i32 0 ; <double*> [#uses=1]
19 %tmp1 = load volatile double, double* %tmp, align 8 ; <double> [#uses=1]
20 %tmp2 = tail call double @fabs( double %tmp1 ) readnone ; <double> [#uses=1]
21 %tmp6 = fadd double %tmp4, %tmp2 ; <double> [#uses=1]
22 store volatile double %tmp6, double* %P, align 8
26 ; CHECK: movsd {{.*}}G, %xmm{{.*}}
27 ; CHECK: andpd %xmm{{.*}}, %xmm{{.*}}
28 ; CHECK: movsd 4(%esp), %xmm{{.*}}
29 ; CHECK: andpd %xmm{{.*}}, %xmm{{.*}}
34 define void @test2() alignstack(16) nounwind {
37 ; CHECK: andl{{.*}}$-16, %esp
41 ; Use a call to force a spill.
42 define <2 x double> @test3(<2 x double> %x, <2 x double> %y) alignstack(32) nounwind {
45 ; CHECK: andl{{.*}}$-32, %esp
47 %A = fmul <2 x double> %x, %y
51 declare double @fabs(double)
53 ; The pointer is already known aligned, so and x,-16 is eliminable.
54 define i32 @test4() nounwind {
56 %buffer = alloca [2048 x i8], align 16
57 %0 = ptrtoint [2048 x i8]* %buffer to i32
58 %and = and i32 %0, -16