carbon-lang/toolchain/lower/testdata/struct/member_access.carbon

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/struct/member_access.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/struct/member_access.carbon

fn Run() -> i32 {
  var x: {.a: f64, .b: i32} = {.a = 0.0, .b = 1};
  var y: i32 = x.b;
  var z: i32 = y;
  return 0;
}

// CHECK:STDOUT: ; ModuleID = 'member_access.carbon'
// CHECK:STDOUT: source_filename = "member_access.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: @struct.loc12_49 = internal constant { double, i32 } { double 0.000000e+00, i32 1 }
// CHECK:STDOUT:
// CHECK:STDOUT: define i32 @main() {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %x.var = alloca { double, i32 }, align 8
// CHECK:STDOUT:   %.loc12_48.2.a = getelementptr inbounds nuw { double, i32 }, ptr %x.var, i32 0, i32 0
// CHECK:STDOUT:   %.loc12_48.4.b = getelementptr inbounds nuw { double, i32 }, ptr %x.var, i32 0, i32 1
// CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 8 %x.var, ptr align 8 @struct.loc12_49, i64 16, i1 false)
// CHECK:STDOUT:   %y.var = alloca i32, align 4
// CHECK:STDOUT:   %.loc13_17.1.b = getelementptr inbounds nuw { double, i32 }, ptr %x.var, i32 0, i32 1
// CHECK:STDOUT:   %.loc13_17.2 = load i32, ptr %.loc13_17.1.b, align 4
// CHECK:STDOUT:   store i32 %.loc13_17.2, ptr %y.var, align 4
// CHECK:STDOUT:   %z.var = alloca i32, align 4
// CHECK:STDOUT:   %.loc14_16 = load i32, ptr %y.var, align 4
// CHECK:STDOUT:   store i32 %.loc14_16, ptr %z.var, align 4
// CHECK:STDOUT:   ret i32 0
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }