File: inalloca-vector.cpp

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (78 lines) | stat: -rw-r--r-- 3,978 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
// RUN: %clang_cc1 -no-opaque-pointers -w -triple i686-pc-win32 -emit-llvm -o - %s | FileCheck %s

// PR44395
// MSVC passes up to three vectors in registers, and the rest indirectly. Check
// that both are compatible with an inalloca prototype.

struct NonTrivial {
  NonTrivial();
  NonTrivial(const NonTrivial &o);
  unsigned handle;
};

typedef float __m128 __attribute__((__vector_size__(16), __aligned__(16)));
__m128 gv128;

// nt, w, and q will be in the inalloca pack.
void receive_vec_128(NonTrivial nt, __m128 x, __m128 y, __m128 z, __m128 w, __m128 q) {
  gv128 = x + y + z + w + q;
}
// CHECK-LABEL: define dso_local void  @"?receive_vec_128@@YAXUNonTrivial@@T__m128@@1111@Z"
// CHECK-SAME: (<4 x float> inreg noundef %x,
// CHECK-SAME: <4 x float> inreg noundef %y,
// CHECK-SAME: <4 x float> inreg noundef %z,
// CHECK-SAME: <{ %struct.NonTrivial, <4 x float>*, <4 x float>* }>* inalloca(<{ %struct.NonTrivial, <4 x float>*, <4 x float>* }>) %0)

void pass_vec_128() {
  __m128 z = {0};
  receive_vec_128(NonTrivial(), z, z, z, z, z);
}
// CHECK-LABEL: define dso_local void @"?pass_vec_128@@YAXXZ"()
// CHECK: getelementptr inbounds <{ %struct.NonTrivial, <4 x float>*, <4 x float>* }>, <{ %struct.NonTrivial, <4 x float>*, <4 x float>* }>* %{{[^,]*}}, i32 0, i32 0
// CHECK: call x86_thiscallcc noundef %struct.NonTrivial* @"??0NonTrivial@@QAE@XZ"(%struct.NonTrivial* {{[^,]*}} %{{.*}})

// Store q, store temp alloca.
// CHECK: store <4 x float> %{{[^,]*}}, <4 x float>* %{{[^,]*}}, align 16
// CHECK: getelementptr inbounds <{ %struct.NonTrivial, <4 x float>*, <4 x float>* }>, <{ %struct.NonTrivial, <4 x float>*, <4 x float>* }>* %{{[^,]*}}, i32 0, i32 1
// CHECK: store <4 x float>* %{{[^,]*}}, <4 x float>** %{{[^,]*}}, align 4

// Store w, store temp alloca.
// CHECK: store <4 x float> %{{[^,]*}}, <4 x float>* %{{[^,]*}}, align 16
// CHECK: getelementptr inbounds <{ %struct.NonTrivial, <4 x float>*, <4 x float>* }>, <{ %struct.NonTrivial, <4 x float>*, <4 x float>* }>* %{{[^,]*}}, i32 0, i32 2
// CHECK: store <4 x float>* %{{[^,]*}}, <4 x float>** %{{[^,]*}}, align 4

// CHECK: call void @"?receive_vec_128@@YAXUNonTrivial@@T__m128@@1111@Z"
// CHECK-SAME: (<4 x float> inreg noundef %{{[^,]*}},
// CHECK-SAME: <4 x float> inreg noundef %{{[^,]*}},
// CHECK-SAME: <4 x float> inreg noundef %{{[^,]*}},
// CHECK-SAME: <{ %struct.NonTrivial, <4 x float>*, <4 x float>* }>* inalloca(<{ %struct.NonTrivial, <4 x float>*, <4 x float>* }>) %{{[^,]*}})

// w will be passed indirectly by register, and q will be passed indirectly, but
// the pointer will be in memory.
void __fastcall fastcall_receive_vec(__m128 x, __m128 y, __m128 z, __m128 w, int edx, __m128 q, NonTrivial nt) {
  gv128 = x + y + z + w + q;
}
// CHECK-LABEL: define dso_local x86_fastcallcc void @"?fastcall_receive_vec@@Y{{[^"]*}}"
// CHECK-SAME: (<4 x float> inreg noundef %x,
// CHECK-SAME: <4 x float> inreg noundef %y,
// CHECK-SAME: <4 x float> inreg noundef %z,
// CHECK-SAME: <4 x float>* inreg noundef %0,
// CHECK-SAME: i32 inreg noundef %edx,
// CHECK-SAME: <{ <4 x float>*, %struct.NonTrivial }>* inalloca(<{ <4 x float>*, %struct.NonTrivial }>) %1)


void __vectorcall vectorcall_receive_vec(double xmm0, double xmm1, double xmm2,
                                         __m128 x, __m128 y, __m128 z,
                                         __m128 w, int edx, __m128 q, NonTrivial nt) {
  gv128 = x + y + z + w + q;
}
// CHECK-LABEL: define dso_local x86_vectorcallcc void @"?vectorcall_receive_vec@@Y{{[^"]*}}"
// CHECK-SAME: (double inreg noundef %xmm0,
// CHECK-SAME: double inreg noundef %xmm1,
// CHECK-SAME: double inreg noundef %xmm2,
// CHECK-SAME: <4 x float> inreg noundef %x,
// CHECK-SAME: <4 x float> inreg noundef %y,
// CHECK-SAME: <4 x float> inreg noundef %z,
// CHECK-SAME: <4 x float>* inreg noundef %0,
// CHECK-SAME: i32 inreg noundef %edx,
// CHECK-SAME: <{ <4 x float>*, %struct.NonTrivial }>* inalloca(<{ <4 x float>*, %struct.NonTrivial }>) %1)