1 ; Test passing variable argument lists in 64-bit calls on z/OS.
2 ; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z10 | FileCheck %s
3 ; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z14 | FileCheck %s -check-prefix=ARCH12
4 ; CHECK-LABEL: call_vararg_double0:
5 ; CHECK: stmg 6,7,1872(4)
6 ; CHECK-NEXT: aghi 4,-192
7 ; CHECK-NEXT: lg 6,8(5)
8 ; CHECK-NEXT: lg 5,0(5)
9 ; CHECK-NEXT: llihf 3,1074118262
10 ; CHECK-NEXT: oilf 3,3367254360
11 ; CHECK-NEXT: lghi 1,1
12 ; CHECK-NEXT: lghi 2,2
13 ; CHECK-NEXT: basr 7,6
15 ; CHECK-NEXT: lg 7,2072(4)
16 ; CHECK-NEXT: aghi 4,192
18 define i64 @call_vararg_double0() {
20 %retval = call i64 (i64, i64, ...) @pass_vararg0(i64 1, i64 2, double 2.718000e+00)
24 ; CHECK-LABEL: call_vararg_double1:
25 ; CHECK: stmg 6,7,1872(4)
26 ; CHECK-NEXT: aghi 4,-192
27 ; CHECK-NEXT: llihf 0,1074118262
28 ; CHECK-NEXT: oilf 0,3367254360
29 ; CHECK-NEXT: lg 6,8(5)
30 ; CHECK-NEXT: lg 5,0(5)
31 ; CHECK-NEXT: llihf 3,1074340036
32 ; CHECK-NEXT: oilf 3,2611340116
33 ; CHECK-NEXT: lghi 1,1
34 ; CHECK-NEXT: lghi 2,2
35 ; CHECK-NEXT: stg 0,2200(4)
36 ; CHECK-NEXT: basr 7,6
38 ; CHECK-NEXT: lg 7,2072(4)
39 ; CHECK-NEXT: aghi 4,192
41 define i64 @call_vararg_double1() {
43 %retval = call i64 (i64, i64, ...) @pass_vararg0(i64 1, i64 2, double 3.141000e+00, double 2.718000e+00)
47 ; CHECK-LABEL: call_vararg_double2:
48 ; CHECK: stmg 6,7,1872(4)
49 ; CHECK-NEXT: aghi 4,-192
50 ; CHECK-NEXT: lg 6,24(5)
51 ; CHECK-NEXT: lg 5,16(5)
52 ; CHECK-NEXT: llihf 2,1074118262
53 ; CHECK-NEXT: oilf 2,3367254360
54 ; CHECK-NEXT: lghi 1,8200
55 ; CHECK-NEXT: basr 7,6
57 ; CHECK-NEXT: lg 7,2072(4)
58 ; CHECK-NEXT: aghi 4,192
60 define i64 @call_vararg_double2() {
62 %retval = call i64 (i64, ...) @pass_vararg2(i64 8200, double 2.718000e+00)
66 ; CHECK-LABEL: call_vararg_double3:
67 ; CHECK: stmg 6,7,1872(4)
68 ; CHECK-NEXT: aghi 4,-192
69 ; CHECK-NEXT: llihf 0,1072703839
70 ; CHECK-NEXT: oilf 0,2861204133
71 ; CHECK-NEXT: lg 6,40(5)
72 ; CHECK-NEXT: lg 5,32(5)
73 ; CHECK-NEXT: llihf 1,1074118262
74 ; CHECK-NEXT: oilf 1,3367254360
75 ; CHECK-NEXT: llihf 2,1074340036
76 ; CHECK-NEXT: oilf 2,2611340116
77 ; CHECK-NEXT: llihf 3,1073127358
78 ; CHECK-NEXT: oilf 3,1992864825
79 ; CHECK-NEXT: stg 0,2200(4)
80 ; CHECK-NEXT: basr 7,6
82 ; CHECK-NEXT: lg 7,2072(4)
83 ; CHECK-NEXT: aghi 4,192
85 define i64 @call_vararg_double3() {
87 %retval = call i64 (...) @pass_vararg3(double 2.718000e+00, double 3.141000e+00, double 1.414000e+00, double 1.010101e+00)
91 ;; TODO: The extra COPY after LGDR is unnecessary (machine-scheduler introduces the overlap).
92 ; CHECK-LABEL: call_vararg_both0:
93 ; CHECK: stmg 6,7,1872(4)
94 ; CHECK-NEXT: aghi 4,-192
95 ; CHECK-NEXT: lg 6,40(5)
96 ; CHECK-NEXT: lg 5,32(5)
97 ; CHECK-NEXT: lgdr 0,0
100 ; CHECK-NEXT: basr 7,6
101 ; CHECK-NEXT: bcr 0,0
102 ; CHECK-NEXT: lg 7,2072(4)
103 ; CHECK-NEXT: aghi 4,192
105 define i64 @call_vararg_both0(i64 %arg0, double %arg1) {
106 %retval = call i64(...) @pass_vararg3(double %arg1, i64 %arg0)
110 ; CHECK-LABEL: call_vararg_long_double0:
111 ; CHECK: stmg 6,7,1872(4)
112 ; CHECK-NEXT: aghi 4,-192
113 ; CHECK-NEXT: larl 1,L#CPI5_0
114 ; CHECK-NEXT: ld 0,0(1)
115 ; CHECK-NEXT: ld 2,8(1)
116 ; CHECK-NEXT: lg 6,8(5)
117 ; CHECK-NEXT: lg 5,0(5)
118 ; CHECK-NEXT: lgdr 3,0
119 ; CHECK-NEXT: lghi 1,1
120 ; CHECK-NEXT: lghi 2,2
121 ; CHECK-NEXT: std 0,2192(4)
122 ; CHECK-NEXT: std 2,2200(4)
123 ; CHECK-NEXT: basr 7,6
124 ; CHECK-NEXT: bcr 0,0
125 ; CHECK-NEXT: lg 7,2072(4)
126 ; CHECK-NEXT: aghi 4,192
128 define i64 @call_vararg_long_double0() {
130 %retval = call i64 (i64, i64, ...) @pass_vararg0(i64 1, i64 2, fp128 0xLE0FC1518450562CD4000921FB5444261)
134 ; CHECK-LABEL: call_vararg_long_double1:
135 ; CHECK: stmg 6,7,1872(4)
136 ; CHECK-NEXT: aghi 4,-192
137 ; CHECK-NEXT: lg 6,8(5)
138 ; CHECK-NEXT: lg 5,0(5)
139 ; CHECK-NEXT: lgdr 3,0
140 ; CHECK-NEXT: lghi 1,1
141 ; CHECK-NEXT: lghi 2,2
142 ; CHECK-NEXT: std 0,2192(4)
143 ; CHECK-NEXT: std 2,2200(4)
144 ; CHECK-NEXT: basr 7,6
145 ; CHECK-NEXT: bcr 0,0
146 ; CHECK-NEXT: lg 7,2072(4)
147 ; CHECK-NEXT: aghi 4,192
149 define i64 @call_vararg_long_double1(fp128 %arg0) {
151 %retval = call i64 (i64, i64, ...) @pass_vararg0(i64 1, i64 2, fp128 %arg0)
155 ; CHECK-LABEL: call_vararg_long_double2
156 ; CHECK-LABEL: call_vararg_long_double2:
157 ; CHECK: stmg 6,7,1872(4)
158 ; CHECK-NEXT: aghi 4,-192
159 ; CHECK-NEXT: std 4,2208(4)
160 ; CHECK-NEXT: std 6,2216(4)
161 ; CHECK-NEXT: lg 6,8(5)
162 ; CHECK-NEXT: lg 5,0(5)
163 ; CHECK-NEXT: lgdr 3,0
164 ; CHECK-NEXT: lghi 1,1
165 ; CHECK-NEXT: lghi 2,2
166 ; CHECK-NEXT: std 0,2192(4)
167 ; CHECK-NEXT: std 2,2200(4)
168 ; CHECK-NEXT: basr 7,6
169 ; CHECK-NEXT: bcr 0,0
170 ; CHECK-NEXT: lg 7,2072(4)
171 ; CHECK-NEXT: aghi 4,192
173 define i64 @call_vararg_long_double2(fp128 %arg0, fp128 %arg1) {
175 %retval = call i64 (i64, i64, ...) @pass_vararg0(i64 1, i64 2, fp128 %arg0, fp128 %arg1)
179 ; CHECK-LABEL: call_vararg_long_double3:
180 ; CHECK: stmg 6,7,1872(4)
181 ; CHECK-NEXT: aghi 4,-192
182 ; CHECK-NEXT: lg 6,40(5)
183 ; CHECK-NEXT: lg 5,32(5)
184 ; CHECK-NEXT: lgdr 3,2
185 ; CHECK-NEXT: lgdr 2,0
186 ; CHECK-NEXT: basr 7,6
187 ; CHECK-NEXT: bcr 0,0
188 ; CHECK-NEXT: lg 7,2072(4)
189 ; CHECK-NEXT: aghi 4,192
191 define i64 @call_vararg_long_double3(fp128 %arg0) {
193 %retval = call i64 (...) @pass_vararg3(fp128 %arg0)
197 ; ARCH12-LABEL: call_vec_vararg_test0
198 ; ARCH12: vlgvg 3,24,1
199 ; ARCH12: vlgvg 2,24,0
201 define void @call_vec_vararg_test0(<2 x double> %v) {
202 %retval = call i64(i64, ...) @pass_vararg2(i64 1, <2 x double> %v)
206 ; ARCH12-LABEL: call_vec_vararg_test1
207 ; ARCH12: larl 1,L#CPI10_0
208 ; ARCH12: vl 0,0(1),3
209 ; ARCH12: vlgvg 3,24,0
210 ; ARCH12: vrepg 2,0,1
211 ; ARCH12: vst 25,2208(4),3
212 ; ARCH12: vst 24,2192(4),3
213 define void @call_vec_vararg_test1(<4 x i32> %v, <2 x i64> %w) {
214 %retval = call i64(fp128, ...) @pass_vararg1(fp128 0xLE0FC1518450562CD4000921FB5444261, <4 x i32> %v, <2 x i64> %w)
218 ; ARCH12-LABEL: call_vec_char_vararg_straddle
219 ; ARCH12: vlgvg 3,24,0
222 ; ARCH12: vst 24,2192(4),3
223 define void @call_vec_char_vararg_straddle(<16 x i8> %v) {
224 %retval = call i64(i64, i64, ...) @pass_vararg0(i64 1, i64 2, <16 x i8> %v)
228 ; ARCH12-LABEL: call_vec_short_vararg_straddle
229 ; ARCH12: vlgvg 3,24,0
232 ; ARCH12: vst 24,2192(4),3
233 define void @call_vec_short_vararg_straddle(<8 x i16> %v) {
234 %retval = call i64(i64, i64, ...) @pass_vararg0(i64 1, i64 2, <8 x i16> %v)
238 ; ARCH12-LABEL: call_vec_int_vararg_straddle
239 ; ARCH12: vlgvg 3,24,0
242 ; ARCH12: vst 24,2192(4),3
243 define void @call_vec_int_vararg_straddle(<4 x i32> %v) {
244 %retval = call i64(i64, i64, ...) @pass_vararg0(i64 1, i64 2, <4 x i32> %v)
248 ; ARCH12-LABEL: call_vec_double_vararg_straddle
249 ; ARCH12: vlgvg 3,24,0
252 ; ARCH12: vst 24,2192(4),3
253 define void @call_vec_double_vararg_straddle(<2 x double> %v) {
254 %retval = call i64(i64, i64, ...) @pass_vararg0(i64 1, i64 2, <2 x double> %v)
258 ; CHECK-LABEL: call_vararg_integral0:
259 ; CHECK: stmg 6,7,1872(4)
260 ; CHECK-NEXT: aghi 4,-192
261 ; CHECK-NEXT: lg 0,2392(4)
262 ; CHECK-NEXT: lg 6,40(5)
263 ; CHECK-NEXT: lg 5,32(5)
264 ; CHECK-NEXT: stg 0,2200(4)
265 ; CHECK-NEXT: basr 7,6
266 ; CHECK-NEXT: bcr 0,0
267 ; CHECK-NEXT: lg 7,2072(4)
268 ; CHECK-NEXT: aghi 4,192
270 define i64 @call_vararg_integral0(i32 signext %arg0, i16 signext %arg1, i64 signext %arg2, i8 signext %arg3) {
272 %retval = call i64(...) @pass_vararg3(i32 signext %arg0, i16 signext %arg1, i64 signext %arg2, i8 signext %arg3)
276 ; CHECK-LABEL: call_vararg_float0:
277 ; CHECK: stmg 6,7,1872(4)
278 ; CHECK-NEXT: aghi 4,-192
279 ; CHECK-NEXT: lg 6,24(5)
280 ; CHECK-NEXT: lg 5,16(5)
281 ; CHECK-NEXT: lghi 1,1
282 ; CHECK-NEXT: llihf 2,1073692672
283 ; CHECK-NEXT: basr 7,6
284 ; CHECK-NEXT: bcr 0,0
285 ; CHECK-NEXT: lg 7,2072(4)
286 ; CHECK-NEXT: aghi 4,192
288 define i64 @call_vararg_float0() {
290 %retval = call i64 (i64, ...) @pass_vararg2(i64 1, float 1.953125)
294 ; CHECK-LABEL: call_vararg_float1:
295 ; CHECK: stmg 6,7,1872(4)
296 ; CHECK-NEXT: aghi 4,-192
297 ; CHECK-NEXT: lg 6,72(5)
298 ; CHECK-NEXT: lg 5,64(5)
299 ; CHECK-NEXT: larl 1,L#CPI17_0
300 ; CHECK-NEXT: le 0,0(1)
301 ; CHECK-NEXT: llihf 0,1073692672
302 ; CHECK-NEXT: llihh 2,16384
303 ; CHECK-NEXT: llihh 3,16392
304 ; CHECK-NEXT: stg 0,2200(4)
305 ; CHECK-NEXT: basr 7,6
306 ; CHECK-NEXT: bcr 0,0
307 ; CHECK-NEXT: lg 7,2072(4)
308 ; CHECK-NEXT: aghi 4,192
310 define i64 @call_vararg_float1() {
312 %retval = call i64 (float, ...) @pass_vararg4(float 1.0, float 2.0, float 3.0, float 1.953125)
316 ; Derived from C source:
317 ; #define _VARARG_EXT_
318 ; #include <stdarg.h>
320 ; long pass(long x, ...) {
323 ; long ret = va_arg(va, long);
328 ; CHECK-LABEL: pass_vararg:
329 ; CHECK: stmg 6,7,1904(4)
330 ; CHECK-NEXT: aghi 4,-160
331 ; CHECK-NEXT: stg 2,2344(4)
332 ; CHECK-NEXT: stg 3,2352(4)
333 ; CHECK-NEXT: la 0,2352(4)
334 ; CHECK-NEXT: stg 0,2200(4)
335 ; CHECK-NEXT: lg 3,2344(4)
336 ; CHECK-NEXT: lg 7,2072(4)
337 ; CHECK-NEXT: aghi 4,160
339 define hidden i64 @pass_vararg(i64 %x, ...) {
341 %va = alloca ptr, align 8
342 call void @llvm.va_start(ptr %va)
343 %argp.cur = load ptr, ptr %va, align 8
344 %argp.next = getelementptr inbounds i8, ptr %argp.cur, i64 8
345 store ptr %argp.next, ptr %va, align 8
346 %ret = load i64, ptr %argp.cur, align 8
347 call void @llvm.va_end(ptr %va)
351 declare void @llvm.va_start(ptr)
352 declare void @llvm.va_end(ptr)
354 declare i64 @pass_vararg0(i64 %arg0, i64 %arg1, ...)
355 declare i64 @pass_vararg1(fp128 %arg0, ...)
356 declare i64 @pass_vararg2(i64 %arg0, ...)
357 declare i64 @pass_vararg3(...)
358 declare i64 @pass_vararg4(float, ...)