1 ; Test moves between FPRs and GPRs. The 32-bit cases test the z10
2 ; implementation, which has no high-word support.
4 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
8 @dptr = external global double
9 @iptr = external global i64
11 ; Test 32-bit moves from GPRs to FPRs. The GPR must be moved into the high
13 define float @f1(i32 %a) {
15 ; CHECK: sllg [[REGISTER:%r[0-5]]], %r2, 32
16 ; CHECK: ldgr %f0, [[REGISTER]]
17 %res = bitcast i32 %a to float
21 ; Like f1, but create a situation where the shift can be folded with
23 define float @f2(i64 %big) {
25 ; CHECK: risbg [[REGISTER:%r[0-5]]], %r2, 0, 159, 31
26 ; CHECK: ldgr %f0, [[REGISTER]]
27 %shift = lshr i64 %big, 1
28 %a = trunc i64 %shift to i32
29 %res = bitcast i32 %a to float
33 ; Another example of the same thing.
34 define float @f3(i64 %big) {
36 ; CHECK: risbg [[REGISTER:%r[0-5]]], %r2, 0, 159, 2
37 ; CHECK: ldgr %f0, [[REGISTER]]
38 %shift = ashr i64 %big, 30
39 %a = trunc i64 %shift to i32
40 %res = bitcast i32 %a to float
44 ; Like f1, but the value to transfer is already in the high 32 bits.
45 define float @f4(i64 %big) {
50 ; CHECK: ldgr %f0, %r2
51 %shift = ashr i64 %big, 32
52 %a = trunc i64 %shift to i32
53 %res = bitcast i32 %a to float
57 ; Test 64-bit moves from GPRs to FPRs.
58 define double @f5(i64 %a) {
60 ; CHECK: ldgr %f0, %r2
61 %res = bitcast i64 %a to double
65 ; Test 128-bit moves from GPRs to FPRs. i128 isn't a legitimate type,
66 ; so this goes through memory.
67 define void @f6(fp128 *%a, i128 *%b) {
74 %val = load i128, i128 *%b
75 %res = bitcast i128 %val to fp128
76 store fp128 %res, fp128 *%a
80 ; Test 32-bit moves from FPRs to GPRs. The high 32 bits of the FPR should
81 ; be moved into the low 32 bits of the GPR.
82 define i32 @f7(float %a) {
84 ; CHECK: lgdr [[REGISTER:%r[0-5]]], %f0
85 ; CHECK: srlg %r2, [[REGISTER]], 32
86 %res = bitcast float %a to i32
90 ; Test 64-bit moves from FPRs to GPRs.
91 define i64 @f8(double %a) {
93 ; CHECK: lgdr %r2, %f0
94 %res = bitcast double %a to i64
98 ; Test 128-bit moves from FPRs to GPRs, with the same restriction as f6.
99 define void @f9(fp128 *%a, i128 *%b) {
105 %val = load fp128, fp128 *%a
106 %res = bitcast fp128 %val to i128
107 store i128 %res, i128 *%b
111 ; Test cases where the destination of an LGDR needs to be spilled.
112 ; We shouldn't have any integer stack stores or floating-point loads.
113 define void @f10(double %extra) {
116 ; CHECK-NOT: stg {{.*}}(%r15)
118 ; CHECK-NOT: ld {{.*}}(%r15)
122 %double0 = load volatile double, double *@dptr
123 %biased0 = fadd double %double0, %extra
124 %int0 = bitcast double %biased0 to i64
125 %double1 = load volatile double, double *@dptr
126 %biased1 = fadd double %double1, %extra
127 %int1 = bitcast double %biased1 to i64
128 %double2 = load volatile double, double *@dptr
129 %biased2 = fadd double %double2, %extra
130 %int2 = bitcast double %biased2 to i64
131 %double3 = load volatile double, double *@dptr
132 %biased3 = fadd double %double3, %extra
133 %int3 = bitcast double %biased3 to i64
134 %double4 = load volatile double, double *@dptr
135 %biased4 = fadd double %double4, %extra
136 %int4 = bitcast double %biased4 to i64
137 %double5 = load volatile double, double *@dptr
138 %biased5 = fadd double %double5, %extra
139 %int5 = bitcast double %biased5 to i64
140 %double6 = load volatile double, double *@dptr
141 %biased6 = fadd double %double6, %extra
142 %int6 = bitcast double %biased6 to i64
143 %double7 = load volatile double, double *@dptr
144 %biased7 = fadd double %double7, %extra
145 %int7 = bitcast double %biased7 to i64
146 %double8 = load volatile double, double *@dptr
147 %biased8 = fadd double %double8, %extra
148 %int8 = bitcast double %biased8 to i64
149 %double9 = load volatile double, double *@dptr
150 %biased9 = fadd double %double9, %extra
151 %int9 = bitcast double %biased9 to i64
155 %start = call i64 @foo()
156 %or0 = or i64 %start, %int0
157 %or1 = or i64 %or0, %int1
158 %or2 = or i64 %or1, %int2
159 %or3 = or i64 %or2, %int3
160 %or4 = or i64 %or3, %int4
161 %or5 = or i64 %or4, %int5
162 %or6 = or i64 %or5, %int6
163 %or7 = or i64 %or6, %int7
164 %or8 = or i64 %or7, %int8
165 %or9 = or i64 %or8, %int9
166 store i64 %or9, i64 *@iptr
167 %cont = icmp ne i64 %start, 1
168 br i1 %cont, label %loop, label %exit
174 ; ...likewise LDGR, with the requirements the other way around.
175 define void @f11(i64 %mask) {
178 ; CHECK-NOT: std {{.*}}(%r15)
180 ; CHECK-NOT: lg {{.*}}(%r15)
184 %int0 = load volatile i64, i64 *@iptr
185 %masked0 = and i64 %int0, %mask
186 %double0 = bitcast i64 %masked0 to double
187 %int1 = load volatile i64, i64 *@iptr
188 %masked1 = and i64 %int1, %mask
189 %double1 = bitcast i64 %masked1 to double
190 %int2 = load volatile i64, i64 *@iptr
191 %masked2 = and i64 %int2, %mask
192 %double2 = bitcast i64 %masked2 to double
193 %int3 = load volatile i64, i64 *@iptr
194 %masked3 = and i64 %int3, %mask
195 %double3 = bitcast i64 %masked3 to double
196 %int4 = load volatile i64, i64 *@iptr
197 %masked4 = and i64 %int4, %mask
198 %double4 = bitcast i64 %masked4 to double
199 %int5 = load volatile i64, i64 *@iptr
200 %masked5 = and i64 %int5, %mask
201 %double5 = bitcast i64 %masked5 to double
202 %int6 = load volatile i64, i64 *@iptr
203 %masked6 = and i64 %int6, %mask
204 %double6 = bitcast i64 %masked6 to double
205 %int7 = load volatile i64, i64 *@iptr
206 %masked7 = and i64 %int7, %mask
207 %double7 = bitcast i64 %masked7 to double
208 %int8 = load volatile i64, i64 *@iptr
209 %masked8 = and i64 %int8, %mask
210 %double8 = bitcast i64 %masked8 to double
211 %int9 = load volatile i64, i64 *@iptr
212 %masked9 = and i64 %int9, %mask
213 %double9 = bitcast i64 %masked9 to double
217 %start = call double @bar()
218 %add0 = fadd double %start, %double0
219 %add1 = fadd double %add0, %double1
220 %add2 = fadd double %add1, %double2
221 %add3 = fadd double %add2, %double3
222 %add4 = fadd double %add3, %double4
223 %add5 = fadd double %add4, %double5
224 %add6 = fadd double %add5, %double6
225 %add7 = fadd double %add6, %double7
226 %add8 = fadd double %add7, %double8
227 %add9 = fadd double %add8, %double9
228 store double %add9, double *@dptr
229 %cont = fcmp one double %start, 1.0
230 br i1 %cont, label %loop, label %exit
236 ; Test cases where the source of an LDGR needs to be spilled.
237 ; We shouldn't have any integer stack stores or floating-point loads.
241 ; CHECK-NOT: std {{.*}}(%r15)
244 ; CHECK-NOT: lg {{.*}}(%r15)
251 %int0 = phi i64 [ 0, %entry ], [ %add0, %loop ]
252 %int1 = phi i64 [ 0, %entry ], [ %add1, %loop ]
253 %int2 = phi i64 [ 0, %entry ], [ %add2, %loop ]
254 %int3 = phi i64 [ 0, %entry ], [ %add3, %loop ]
255 %int4 = phi i64 [ 0, %entry ], [ %add4, %loop ]
256 %int5 = phi i64 [ 0, %entry ], [ %add5, %loop ]
257 %int6 = phi i64 [ 0, %entry ], [ %add6, %loop ]
258 %int7 = phi i64 [ 0, %entry ], [ %add7, %loop ]
259 %int8 = phi i64 [ 0, %entry ], [ %add8, %loop ]
260 %int9 = phi i64 [ 0, %entry ], [ %add9, %loop ]
262 %bias = call i64 @foo()
263 %add0 = add i64 %int0, %bias
264 %add1 = add i64 %int1, %bias
265 %add2 = add i64 %int2, %bias
266 %add3 = add i64 %int3, %bias
267 %add4 = add i64 %int4, %bias
268 %add5 = add i64 %int5, %bias
269 %add6 = add i64 %int6, %bias
270 %add7 = add i64 %int7, %bias
271 %add8 = add i64 %int8, %bias
272 %add9 = add i64 %int9, %bias
273 %cont = icmp ne i64 %bias, 1
274 br i1 %cont, label %loop, label %exit
277 %unused1 = call i64 @foo()
278 %factor = load volatile double, double *@dptr
280 %conv0 = bitcast i64 %add0 to double
281 %mul0 = fmul double %conv0, %factor
282 store volatile double %mul0, double *@dptr
283 %conv1 = bitcast i64 %add1 to double
284 %mul1 = fmul double %conv1, %factor
285 store volatile double %mul1, double *@dptr
286 %conv2 = bitcast i64 %add2 to double
287 %mul2 = fmul double %conv2, %factor
288 store volatile double %mul2, double *@dptr
289 %conv3 = bitcast i64 %add3 to double
290 %mul3 = fmul double %conv3, %factor
291 store volatile double %mul3, double *@dptr
292 %conv4 = bitcast i64 %add4 to double
293 %mul4 = fmul double %conv4, %factor
294 store volatile double %mul4, double *@dptr
295 %conv5 = bitcast i64 %add5 to double
296 %mul5 = fmul double %conv5, %factor
297 store volatile double %mul5, double *@dptr
298 %conv6 = bitcast i64 %add6 to double
299 %mul6 = fmul double %conv6, %factor
300 store volatile double %mul6, double *@dptr
301 %conv7 = bitcast i64 %add7 to double
302 %mul7 = fmul double %conv7, %factor
303 store volatile double %mul7, double *@dptr
304 %conv8 = bitcast i64 %add8 to double
305 %mul8 = fmul double %conv8, %factor
306 store volatile double %mul8, double *@dptr
307 %conv9 = bitcast i64 %add9 to double
308 %mul9 = fmul double %conv9, %factor
309 store volatile double %mul9, double *@dptr
311 %unused2 = call i64 @foo()
316 ; ...likewise LGDR, with the requirements the other way around.
320 ; CHECK-NOT: stg {{.*}}(%r15)
323 ; CHECK-NOT: ld {{.*}}(%r15)
330 %double0 = phi double [ 1.0, %entry ], [ %mul0, %loop ]
331 %double1 = phi double [ 1.0, %entry ], [ %mul1, %loop ]
332 %double2 = phi double [ 1.0, %entry ], [ %mul2, %loop ]
333 %double3 = phi double [ 1.0, %entry ], [ %mul3, %loop ]
334 %double4 = phi double [ 1.0, %entry ], [ %mul4, %loop ]
335 %double5 = phi double [ 1.0, %entry ], [ %mul5, %loop ]
336 %double6 = phi double [ 1.0, %entry ], [ %mul6, %loop ]
337 %double7 = phi double [ 1.0, %entry ], [ %mul7, %loop ]
338 %double8 = phi double [ 1.0, %entry ], [ %mul8, %loop ]
339 %double9 = phi double [ 1.0, %entry ], [ %mul9, %loop ]
341 %factor = call double @bar()
342 %mul0 = fmul double %double0, %factor
343 %mul1 = fmul double %double1, %factor
344 %mul2 = fmul double %double2, %factor
345 %mul3 = fmul double %double3, %factor
346 %mul4 = fmul double %double4, %factor
347 %mul5 = fmul double %double5, %factor
348 %mul6 = fmul double %double6, %factor
349 %mul7 = fmul double %double7, %factor
350 %mul8 = fmul double %double8, %factor
351 %mul9 = fmul double %double9, %factor
352 %cont = fcmp one double %factor, 1.0
353 br i1 %cont, label %loop, label %exit
356 %unused1 = call i64 @foo()
357 %bias = load volatile i64, i64 *@iptr
359 %conv0 = bitcast double %mul0 to i64
360 %add0 = add i64 %conv0, %bias
361 store volatile i64 %add0, i64 *@iptr
362 %conv1 = bitcast double %mul1 to i64
363 %add1 = add i64 %conv1, %bias
364 store volatile i64 %add1, i64 *@iptr
365 %conv2 = bitcast double %mul2 to i64
366 %add2 = add i64 %conv2, %bias
367 store volatile i64 %add2, i64 *@iptr
368 %conv3 = bitcast double %mul3 to i64
369 %add3 = add i64 %conv3, %bias
370 store volatile i64 %add3, i64 *@iptr
371 %conv4 = bitcast double %mul4 to i64
372 %add4 = add i64 %conv4, %bias
373 store volatile i64 %add4, i64 *@iptr
374 %conv5 = bitcast double %mul5 to i64
375 %add5 = add i64 %conv5, %bias
376 store volatile i64 %add5, i64 *@iptr
377 %conv6 = bitcast double %mul6 to i64
378 %add6 = add i64 %conv6, %bias
379 store volatile i64 %add6, i64 *@iptr
380 %conv7 = bitcast double %mul7 to i64
381 %add7 = add i64 %conv7, %bias
382 store volatile i64 %add7, i64 *@iptr
383 %conv8 = bitcast double %mul8 to i64
384 %add8 = add i64 %conv8, %bias
385 store volatile i64 %add8, i64 *@iptr
386 %conv9 = bitcast double %mul9 to i64
387 %add9 = add i64 %conv9, %bias
388 store volatile i64 %add9, i64 *@iptr
390 %unused2 = call i64 @foo()