mirror of
https://github.com/ldc-developers/ldc.git
synced 2025-05-05 01:20:51 +03:00
62 lines
2.4 KiB
D
62 lines
2.4 KiB
D
// RUN: %ldc -c -output-ll -of=%t.ll %s && FileCheck %s < %t.ll
|
|
|
|
// Fails on Windows_x86, see https://github.com/ldc-developers/ldc/issues/1356
|
|
// XFAIL: Windows_x86
|
|
|
|
align(32) struct Outer { int a; }
|
|
struct Inner { align(32) int a; }
|
|
|
|
static Outer globalOuter;
|
|
// CHECK: constant %align.Outer_init zeroinitializer{{(, comdat)?}}, align 32
|
|
static Inner globalInner;
|
|
// CHECK: constant %align.Inner_init zeroinitializer{{(, comdat)?}}, align 32
|
|
|
|
Outer passAndReturnOuterByVal(Outer arg) { return arg; }
|
|
// CHECK: define{{.*}} void @{{.*}}_D5align23passAndReturnOuterByValFS5align5OuterZS5align5Outer
|
|
/* the 32-bit x86 ABI substitutes the sret attribute by inreg */
|
|
// CHECK-SAME: %align.Outer* {{noalias sret|inreg noalias}} align 32 %.sret_arg
|
|
/* how the arg is passed by value is ABI-specific, but the pointer must be aligned */
|
|
// CHECK-SAME: align 32 %
|
|
|
|
Inner passAndReturnInnerByVal(Inner arg) { return arg; }
|
|
// CHECK: define{{.*}} void @{{.*}}_D5align23passAndReturnInnerByValFS5align5InnerZS5align5Inner
|
|
// CHECK-SAME: %align.Inner* {{noalias sret|inreg noalias}} align 32 %.sret_arg
|
|
// CHECK-SAME: align 32 %
|
|
|
|
void main() {
|
|
Outer outer;
|
|
// CHECK: %outer = alloca %align.Outer, align 32
|
|
Inner inner;
|
|
// CHECK: %inner = alloca %align.Inner, align 32
|
|
|
|
align(16) byte byte16;
|
|
// CHECK: %byte16 = alloca i8, align 16
|
|
align(64) Outer outer64;
|
|
// CHECK: %outer64 = alloca %align.Outer, align 64
|
|
align(128) Inner inner128;
|
|
// CHECK: %inner128 = alloca %align.Inner, align 128
|
|
|
|
alias Byte8 = align(8) byte;
|
|
Byte8 byte8;
|
|
// Can aliases contain align(x) ?
|
|
// C HECK: %byte8 = alloca i8, align 8
|
|
// C HECK: %byte8 = alloca i8, align 1
|
|
|
|
align(16) Outer outeroverride;
|
|
// Yet undecided if align() should override type alignment:
|
|
// C HECK: %outeroverride = alloca %align.Outer, align 16
|
|
// C HECK: %outeroverride = alloca %align.Outer, align 32
|
|
|
|
// CHECK: %.sret_tmp{{.*}} = alloca %align.Outer, align 32
|
|
// CHECK: %.sret_tmp{{.*}} = alloca %align.Inner, align 32
|
|
|
|
outer = passAndReturnOuterByVal(outer);
|
|
// CHECK: call{{.*}} void @{{.*}}_D5align23passAndReturnOuterByValFS5align5OuterZS5align5Outer
|
|
// CHECK-SAME: %align.Outer* {{noalias sret|inreg noalias}} align 32 %.sret_tmp
|
|
// CHECK-SAME: align 32 %
|
|
|
|
inner = passAndReturnInnerByVal(inner);
|
|
// CHECK: call{{.*}} void @{{.*}}_D5align23passAndReturnInnerByValFS5align5InnerZS5align5Inner
|
|
// CHECK-SAME: %align.Inner* {{noalias sret|inreg noalias}} align 32 %.sret_tmp
|
|
// CHECK-SAME: align 32 %
|
|
}
|