1 ; RUN: llc -march=hexagon -mcpu=hexagonv65 < %s | FileCheck %s
5 ; struct S { int a[3];};
6 ; void foo(int x, struct S arg1, struct S arg2);
13 ; Test that while passing a 12-byte struct on the stack, the
14 ; struct is aligned to 4 bytes since its largest member is of type int.
15 ; Previously, the struct was being aligned to 8 bytes
17 ; CHECK: memw(r{{[0-9]+}}+#12) = #9
19 ; Check that the flag hexagon-disable-args-min-alignment works and the struct
20 ; is aligned to 8 bytes.
21 ; RUN: llc -march=hexagon -mcpu=hexagonv65 -hexagon-disable-args-min-alignment < %s | FileCheck -check-prefix=HEXAGON_LEGACY %s
23 ; HEXAGON_LEGACY: memw(r{{[0-9]+}}+#16) = #9
25 %struct.S = type { [3 x i32] }
27 ; Function Attrs: nounwind
28 define dso_local void @bar() local_unnamed_addr #0 {
30 %s = alloca %struct.S, align 4
31 %0 = bitcast %struct.S* %s to i8*
32 call void @llvm.lifetime.start.p0i8(i64 12, i8* nonnull %0) #3
33 %arrayidx = getelementptr inbounds %struct.S, %struct.S* %s, i32 0, i32 0, i32 0
34 store i32 9, i32* %arrayidx, align 4
35 tail call void @foo(i32 42, %struct.S* nonnull byval(%struct.S) align 4 %s, %struct.S* nonnull byval(%struct.S) align 4 %s) #3
36 call void @llvm.lifetime.end.p0i8(i64 12, i8* nonnull %0) #3
40 ; Function Attrs: argmemonly nounwind willreturn
41 declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1
43 declare dso_local void @foo(i32, %struct.S* byval(%struct.S) align 4, %struct.S* byval(%struct.S) align 4) local_unnamed_addr #2
45 ; Function Attrs: argmemonly nounwind willreturn
46 declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1