1 ; RUN: llc -march=mipsel -relocation-model=pic -enable-mips-tail-calls < %s | \
2 ; RUN: FileCheck %s -check-prefix=PIC32
3 ; RUN: llc -march=mipsel -relocation-model=static \
4 ; RUN: -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=STATIC32
5 ; RUN: llc -march=mips64el -mcpu=mips64r2 -mattr=+n64 -enable-mips-tail-calls \
6 ; RUN: < %s | FileCheck %s -check-prefix=N64
7 ; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic \
8 ; RUN: -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=PIC16
10 @g0 = common global i32 0, align 4
11 @g1 = common global i32 0, align 4
12 @g2 = common global i32 0, align 4
13 @g3 = common global i32 0, align 4
14 @g4 = common global i32 0, align 4
15 @g5 = common global i32 0, align 4
16 @g6 = common global i32 0, align 4
17 @g7 = common global i32 0, align 4
18 @g8 = common global i32 0, align 4
19 @g9 = common global i32 0, align 4
21 define i32 @caller1(i32 %a0) nounwind {
28 %call = tail call i32 @callee1(i32 1, i32 1, i32 1, i32 %a0) nounwind
32 declare i32 @callee1(i32, i32, i32, i32)
34 define i32 @caller2(i32 %a0, i32 %a1, i32 %a2, i32 %a3) nounwind {
41 %call = tail call i32 @callee2(i32 1, i32 %a0, i32 %a1, i32 %a2, i32 %a3) nounwind
45 declare i32 @callee2(i32, i32, i32, i32, i32)
47 define i32 @caller3(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4) nounwind {
54 %call = tail call i32 @callee3(i32 1, i32 1, i32 1, i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4) nounwind
58 declare i32 @callee3(i32, i32, i32, i32, i32, i32, i32, i32)
60 define i32 @caller4(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7) nounwind {
67 %call = tail call i32 @callee4(i32 1, i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7) nounwind
71 declare i32 @callee4(i32, i32, i32, i32, i32, i32, i32, i32, i32)
73 define i32 @caller5() nounwind readonly {
78 ; STATIC32: .ent caller5
80 ; STATIC32: .end caller5
88 %0 = load i32* @g0, align 4
89 %1 = load i32* @g1, align 4
90 %2 = load i32* @g2, align 4
91 %3 = load i32* @g3, align 4
92 %4 = load i32* @g4, align 4
93 %5 = load i32* @g5, align 4
94 %6 = load i32* @g6, align 4
95 %7 = load i32* @g7, align 4
96 %8 = load i32* @g8, align 4
97 %9 = load i32* @g9, align 4
98 %call = tail call fastcc i32 @callee5(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, i32 %7, i32 %8, i32 %9)
102 define internal fastcc i32 @callee5(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7, i32 %a8, i32 %a9) nounwind readnone noinline {
104 %add = add nsw i32 %a1, %a0
105 %add1 = add nsw i32 %add, %a2
106 %add2 = add nsw i32 %add1, %a3
107 %add3 = add nsw i32 %add2, %a4
108 %add4 = add nsw i32 %add3, %a5
109 %add5 = add nsw i32 %add4, %a6
110 %add6 = add nsw i32 %add5, %a7
111 %add7 = add nsw i32 %add6, %a8
112 %add8 = add nsw i32 %add7, %a9
116 declare i32 @callee8(i32, ...)
118 define i32 @caller8_0() nounwind {
120 %call = tail call fastcc i32 @caller8_1()
124 define internal fastcc i32 @caller8_1() nounwind noinline {
126 ; PIC32: .ent caller8_1
128 ; PIC32: .end caller8_1
129 ; STATIC32: .ent caller8_1
131 ; STATIC32: .end caller8_1
132 ; N64: .ent caller8_1
134 ; N64: .end caller8_1
135 ; PIC16: .ent caller8_1
137 ; PIC16: .end caller8_1
139 %call = tail call i32 (i32, ...)* @callee8(i32 2, i32 1) nounwind
143 %struct.S = type { [2 x i32] }
145 @gs1 = external global %struct.S
147 declare i32 @callee9(%struct.S* byval)
149 define i32 @caller9_0() nounwind {
151 %call = tail call fastcc i32 @caller9_1()
155 define internal fastcc i32 @caller9_1() nounwind noinline {
157 ; PIC32: .ent caller9_1
159 ; PIC32: .end caller9_1
160 ; STATIC32: .ent caller9_1
162 ; STATIC32: .end caller9_1
163 ; N64: .ent caller9_1
165 ; N64: .end caller9_1
166 ; PIC16: .ent caller9_1
168 ; PIC16: .end caller9_1
170 %call = tail call i32 @callee9(%struct.S* byval @gs1) nounwind
174 declare i32 @callee10(i32, i32, i32, i32, i32, i32, i32, i32, i32)
176 define i32 @caller10(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7, i32 %a8) nounwind {
178 ; PIC32: .ent caller10
180 ; STATIC32: .ent caller10
184 ; PIC16: .ent caller10
187 %call = tail call i32 @callee10(i32 %a8, i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6, i32 %a7) nounwind
191 declare i32 @callee11(%struct.S* byval)
193 define i32 @caller11() nounwind noinline {
195 ; PIC32: .ent caller11
197 ; STATIC32: .ent caller11
201 ; PIC16: .ent caller11
204 %call = tail call i32 @callee11(%struct.S* byval @gs1) nounwind
208 declare i32 @callee12()
210 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
212 define i32 @caller12(%struct.S* nocapture byval %a0) nounwind {
214 ; PIC32: .ent caller12
216 ; STATIC32: .ent caller12
220 ; PIC16: .ent caller12
223 %0 = bitcast %struct.S* %a0 to i8*
224 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast (%struct.S* @gs1 to i8*), i8* %0, i32 8, i32 4, i1 false)
225 %call = tail call i32 @callee12() nounwind
229 declare i32 @callee13(i32, ...)
231 define i32 @caller13() nounwind {
233 ; PIC32: .ent caller13
235 ; STATIC32: .ent caller13
239 ; PIC16: .ent caller13
242 %call = tail call i32 (i32, ...)* @callee13(i32 1, i32 2) nounwind