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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
; RUN: llc < %s -mtriple=i686-pc-win32 -mcpu=generic | FileCheck %s -check-prefix=FTOL
; RUN: llc < %s -mtriple=i686-pc-mingw32 | FileCheck %s -check-prefix=COMPILERRT
; RUN: llc < %s -mtriple=i686-pc-linux | FileCheck %s -check-prefix=COMPILERRT
; RUN: llc < %s -mtriple=x86_64-pc-win32 | FileCheck %s -check-prefix=COMPILERRT
; RUN: llc < %s -mtriple=x86_64-pc-mingw32 | FileCheck %s -check-prefix=COMPILERRT
; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s -check-prefix=COMPILERRT
; RUN: llc < %s -mattr=-sse -O0 -mtriple=i686-pc-win32 | FileCheck %s -check-prefix=FTOL_2
; Win32 targets use the MSVCRT _ftol2 runtime function for fptoui to i64. This
; function has a nonstandard calling convention: the input value is expected on
; the x87 stack instead of the callstack. The input value is popped by the
; callee. Mingw32 uses normal cdecl compiler-rt functions.
define i64 @double_ui64(double %x) nounwind {
entry:
; COMPILERRT: @double_ui64
; COMPILERRT-NOT: calll __ftol2
; FTOL: @double_ui64
; FTOL: fldl
; FTOL: calll __ftol2
; FTOL-NOT: fstp
%0 = fptoui double %x to i64
ret i64 %0
}
define i64 @float_ui64(float %x) nounwind {
entry:
; COMPILERRT: @float_ui64
; COMPILERRT-NOT: calll __ftol2
; FTOL: @float_ui64
; FTOL: flds
; FTOL: calll __ftol2
; FTOL-NOT: fstp
%0 = fptoui float %x to i64
ret i64 %0
}
define i64 @double_ui64_2(double %x, double %y, double %z) nounwind {
; COMPILERRT: @double_ui64_2
; FTOL: @double_ui64_2
; FTOL_2: @double_ui64_2
;; stack is empty
; FTOL_2: fldl
;; stack is %z
; FTOL_2: fldl
;; stack is %y %z
; FTOL_2: fldl
;; stack is %x %y %z
; FTOL_2: fdiv %st(0), %st(1)
;; stack is %x %1 %z
; FTOL_2: fsubp %st(2)
;; stack is %1 %2
; FTOL_2: fxch
; FTOL_2-NOT: fld
; FTOL_2-NOT: fst
;; stack is %2 %1
; FTOL_2: calll __ftol2
; FTOL_2-NOT: fxch
; FTOL_2-NOT: fld
; FTOL_2-NOT: fst
; FTOL_2: calll __ftol2
;; stack is empty
%1 = fdiv double %x, %y
%2 = fsub double %x, %z
%3 = fptoui double %2 to i64
%4 = fptoui double %1 to i64
%5 = sub i64 %4, %3
ret i64 %5
}
define i64 @double_ui64_3(double %x, double %y, double %z) nounwind {
; COMPILERRT: @double_ui64_3
; FTOL: @double_ui64_3
; FTOL_2: @double_ui64_3
;; stack is empty
; FTOL_2: fldl
;; stack is %z
; FTOL_2: fldl
;; stack is %y %z
; FTOL_2: fldl
;; stack is %x %y %z
; FTOL_2: fdiv %st(0), %st(1)
;; stack is %x %1 %z
; FTOL_2: fsubp %st(2)
;; stack is %1 %2
; FTOL_2-NOT: fxch
; FTOL_2-NOT: fld
; FTOL_2-NOT: fst
;; stack is %1 %2 (still)
; FTOL_2: calll __ftol2
; FTOL_2-NOT: fxch
; FTOL_2-NOT: fld
; FTOL_2-NOT: fst
; FTOL_2: calll __ftol2
;; stack is empty
%1 = fdiv double %x, %y
%2 = fsub double %x, %z
%3 = fptoui double %1 to i64
%4 = fptoui double %2 to i64
%5 = sub i64 %4, %3
ret i64 %5
}
define {double, i64} @double_ui64_4(double %x, double %y) nounwind {
; COMPILERRT: @double_ui64_4
; FTOL: @double_ui64_4
; FTOL_2: @double_ui64_4
;; stack is empty
; FTOL_2: fldl
;; stack is %y
; FTOL_2: fldl
;; stack is %x %y
; FTOL_2: fxch
;; stack is %y %x
; FTOL_2: calll __ftol2
;; stack is %x
; FTOL_2: fld %st(0)
;; stack is %x %x
; FTOL_2: calll __ftol2
;; stack is %x
%1 = fptoui double %y to i64
%2 = fptoui double %x to i64
%3 = sub i64 %2, %1
%4 = insertvalue {double, i64} undef, double %x, 0
%5 = insertvalue {double, i64} %4, i64 %3, 1
ret {double, i64} %5
}
define i32 @double_ui32_5(double %X) {
; FTOL: @double_ui32_5
; FTOL: calll __ftol2
%tmp.1 = fptoui double %X to i32
ret i32 %tmp.1
}
define i64 @double_ui64_5(double %X) {
; FTOL: @double_ui64_5
; FTOL: calll __ftol2
%tmp.1 = fptoui double %X to i64
ret i64 %tmp.1
}
|
