1 ; RUN: opt < %s -argpromotion -S | FileCheck %s
2 ; RUN: opt < %s -passes=argpromotion -S | FileCheck %s
4 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
5 target triple = "x86_64-unknown-linux-gnu"
7 %union.u = type { x86_fp80 }
8 %struct.s = type { double, i16, i8, [5 x i8] }
10 @b = internal global %struct.s { double 3.14, i16 9439, i8 25, [5 x i8] undef }, align 16
12 %struct.Foo = type { i32, i64 }
13 @a = internal global %struct.Foo { i32 1, i64 2 }, align 8
17 tail call i8 @UseLongDoubleUnsafely(%union.u* byval align 16 bitcast (%struct.s* @b to %union.u*))
18 tail call x86_fp80 @UseLongDoubleSafely(%union.u* byval align 16 bitcast (%struct.s* @b to %union.u*))
19 call i64 @AccessPaddingOfStruct(%struct.Foo* @a)
20 call i64 @CaptureAStruct(%struct.Foo* @a)
24 ; CHECK: internal i8 @UseLongDoubleUnsafely(%union.u* byval align 16 %arg) {
25 define internal i8 @UseLongDoubleUnsafely(%union.u* byval align 16 %arg) {
27 %bitcast = bitcast %union.u* %arg to %struct.s*
28 %gep = getelementptr inbounds %struct.s, %struct.s* %bitcast, i64 0, i32 2
29 %result = load i8, i8* %gep
33 ; CHECK: internal x86_fp80 @UseLongDoubleSafely(x86_fp80 {{%.*}}) {
34 define internal x86_fp80 @UseLongDoubleSafely(%union.u* byval align 16 %arg) {
35 %gep = getelementptr inbounds %union.u, %union.u* %arg, i64 0, i32 0
36 %fp80 = load x86_fp80, x86_fp80* %gep
40 ; CHECK: define internal i64 @AccessPaddingOfStruct(%struct.Foo* byval %a) {
41 define internal i64 @AccessPaddingOfStruct(%struct.Foo* byval %a) {
42 %p = bitcast %struct.Foo* %a to i64*
43 %v = load i64, i64* %p
47 ; CHECK: define internal i64 @CaptureAStruct(%struct.Foo* byval %a) {
48 define internal i64 @CaptureAStruct(%struct.Foo* byval %a) {
50 %a_ptr = alloca %struct.Foo*
54 %phi = phi %struct.Foo* [ null, %entry ], [ %gep, %loop ]
55 %0 = phi %struct.Foo* [ %a, %entry ], [ %0, %loop ]
56 store %struct.Foo* %phi, %struct.Foo** %a_ptr
57 %gep = getelementptr %struct.Foo, %struct.Foo* %a, i64 0