1
; Test 64-bit comparison in which the second operand is a sign-extended i32.
3
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
7
; Check signed register comparison.
8
define double @f1(double %a, double %b, i64 %i1, i32 %unext) {
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; CHECK: cgfr %r2, %r3
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%i2 = sext i32 %unext to i64
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%cond = icmp slt i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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; Check unsigned register comparison, which can't use CGFR.
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define double @f2(double %a, double %b, i64 %i1, i32 %unext) {
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%i2 = sext i32 %unext to i64
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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; Check register equality.
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define double @f3(double %a, double %b, i64 %i1, i32 %unext) {
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; CHECK: cgfr %r2, %r3
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%i2 = sext i32 %unext to i64
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%cond = icmp eq i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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; Check register inequality.
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define double @f4(double %a, double %b, i64 %i1, i32 %unext) {
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; CHECK: cgfr %r2, %r3
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%i2 = sext i32 %unext to i64
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%cond = icmp ne i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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; Check signed comparison with memory.
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define double @f5(double %a, double %b, i64 %i1, i32 *%ptr) {
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; CHECK: cgf %r2, 0(%r3)
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%unext = load i32 , i32 *%ptr
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%i2 = sext i32 %unext to i64
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%cond = icmp slt i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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; Check unsigned comparison with memory.
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define double @f6(double %a, double %b, i64 %i1, i32 *%ptr) {
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%unext = load i32 , i32 *%ptr
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%i2 = sext i32 %unext to i64
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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; Check memory equality.
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define double @f7(double %a, double %b, i64 %i1, i32 *%ptr) {
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; CHECK: cgf %r2, 0(%r3)
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%unext = load i32 , i32 *%ptr
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%i2 = sext i32 %unext to i64
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%cond = icmp eq i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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; Check memory inequality.
98
define double @f8(double %a, double %b, i64 %i1, i32 *%ptr) {
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; CHECK: cgf %r2, 0(%r3)
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; CHECK: ldr %f0, %f2
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%unext = load i32 , i32 *%ptr
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%i2 = sext i32 %unext to i64
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%cond = icmp ne i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
111
; Check the high end of the aligned CGF range.
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define double @f9(double %a, double %b, i64 %i1, i32 *%base) {
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; CHECK: cgf %r2, 524284(%r3)
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; CHECK: ldr %f0, %f2
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%ptr = getelementptr i32, i32 *%base, i64 131071
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%unext = load i32 , i32 *%ptr
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%i2 = sext i32 %unext to i64
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%cond = icmp slt i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
126
; Check the next word up, which needs separate address logic.
127
; Other sequences besides this one would be OK.
128
define double @f10(double %a, double %b, i64 %i1, i32 *%base) {
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; CHECK: agfi %r3, 524288
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; CHECK: cgf %r2, 0(%r3)
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; CHECK: ldr %f0, %f2
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%ptr = getelementptr i32, i32 *%base, i64 131072
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%unext = load i32 , i32 *%ptr
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%i2 = sext i32 %unext to i64
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%cond = icmp slt i64 %i1, %i2
139
%res = select i1 %cond, double %a, double %b
143
; Check the high end of the negative aligned CGF range.
144
define double @f11(double %a, double %b, i64 %i1, i32 *%base) {
146
; CHECK: cgf %r2, -4(%r3)
148
; CHECK: ldr %f0, %f2
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%ptr = getelementptr i32, i32 *%base, i64 -1
151
%unext = load i32 , i32 *%ptr
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%i2 = sext i32 %unext to i64
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%cond = icmp slt i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
158
; Check the low end of the CGF range.
159
define double @f12(double %a, double %b, i64 %i1, i32 *%base) {
161
; CHECK: cgf %r2, -524288(%r3)
163
; CHECK: ldr %f0, %f2
165
%ptr = getelementptr i32, i32 *%base, i64 -131072
166
%unext = load i32 , i32 *%ptr
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%i2 = sext i32 %unext to i64
168
%cond = icmp slt i64 %i1, %i2
169
%res = select i1 %cond, double %a, double %b
173
; Check the next word down, which needs separate address logic.
174
; Other sequences besides this one would be OK.
175
define double @f13(double %a, double %b, i64 %i1, i32 *%base) {
177
; CHECK: agfi %r3, -524292
178
; CHECK: cgf %r2, 0(%r3)
180
; CHECK: ldr %f0, %f2
182
%ptr = getelementptr i32, i32 *%base, i64 -131073
183
%unext = load i32 , i32 *%ptr
184
%i2 = sext i32 %unext to i64
185
%cond = icmp slt i64 %i1, %i2
186
%res = select i1 %cond, double %a, double %b
190
; Check that CGF allows an index.
191
define double @f14(double %a, double %b, i64 %i1, i64 %base, i64 %index) {
193
; CHECK: cgf %r2, 524284({{%r4,%r3|%r3,%r4}})
195
; CHECK: ldr %f0, %f2
197
%add1 = add i64 %base, %index
198
%add2 = add i64 %add1, 524284
199
%ptr = inttoptr i64 %add2 to i32 *
200
%unext = load i32 , i32 *%ptr
201
%i2 = sext i32 %unext to i64
202
%cond = icmp slt i64 %i1, %i2
203
%res = select i1 %cond, double %a, double %b
207
; Check that comparisons of spilled values can use CGF rather than CGFR.
208
define i64 @f15(i32 *%ptr0) {
210
; CHECK: brasl %r14, foo@PLT
211
; CHECK: cgf {{%r[0-9]+}}, 16{{[04]}}(%r15)
213
%ptr1 = getelementptr i32, i32 *%ptr0, i64 2
214
%ptr2 = getelementptr i32, i32 *%ptr0, i64 4
215
%ptr3 = getelementptr i32, i32 *%ptr0, i64 6
216
%ptr4 = getelementptr i32, i32 *%ptr0, i64 8
217
%ptr5 = getelementptr i32, i32 *%ptr0, i64 10
218
%ptr6 = getelementptr i32, i32 *%ptr0, i64 12
219
%ptr7 = getelementptr i32, i32 *%ptr0, i64 14
220
%ptr8 = getelementptr i32, i32 *%ptr0, i64 16
221
%ptr9 = getelementptr i32, i32 *%ptr0, i64 18
223
%val0 = load i32 , i32 *%ptr0
224
%val1 = load i32 , i32 *%ptr1
225
%val2 = load i32 , i32 *%ptr2
226
%val3 = load i32 , i32 *%ptr3
227
%val4 = load i32 , i32 *%ptr4
228
%val5 = load i32 , i32 *%ptr5
229
%val6 = load i32 , i32 *%ptr6
230
%val7 = load i32 , i32 *%ptr7
231
%val8 = load i32 , i32 *%ptr8
232
%val9 = load i32 , i32 *%ptr9
234
%frob0 = add i32 %val0, 100
235
%frob1 = add i32 %val1, 100
236
%frob2 = add i32 %val2, 100
237
%frob3 = add i32 %val3, 100
238
%frob4 = add i32 %val4, 100
239
%frob5 = add i32 %val5, 100
240
%frob6 = add i32 %val6, 100
241
%frob7 = add i32 %val7, 100
242
%frob8 = add i32 %val8, 100
243
%frob9 = add i32 %val9, 100
245
store i32 %frob0, i32 *%ptr0
246
store i32 %frob1, i32 *%ptr1
247
store i32 %frob2, i32 *%ptr2
248
store i32 %frob3, i32 *%ptr3
249
store i32 %frob4, i32 *%ptr4
250
store i32 %frob5, i32 *%ptr5
251
store i32 %frob6, i32 *%ptr6
252
store i32 %frob7, i32 *%ptr7
253
store i32 %frob8, i32 *%ptr8
254
store i32 %frob9, i32 *%ptr9
256
%ret = call i64 @foo()
258
%ext0 = sext i32 %frob0 to i64
259
%ext1 = sext i32 %frob1 to i64
260
%ext2 = sext i32 %frob2 to i64
261
%ext3 = sext i32 %frob3 to i64
262
%ext4 = sext i32 %frob4 to i64
263
%ext5 = sext i32 %frob5 to i64
264
%ext6 = sext i32 %frob6 to i64
265
%ext7 = sext i32 %frob7 to i64
266
%ext8 = sext i32 %frob8 to i64
267
%ext9 = sext i32 %frob9 to i64
269
%cmp0 = icmp slt i64 %ret, %ext0
270
%cmp1 = icmp slt i64 %ret, %ext1
271
%cmp2 = icmp slt i64 %ret, %ext2
272
%cmp3 = icmp slt i64 %ret, %ext3
273
%cmp4 = icmp slt i64 %ret, %ext4
274
%cmp5 = icmp slt i64 %ret, %ext5
275
%cmp6 = icmp slt i64 %ret, %ext6
276
%cmp7 = icmp slt i64 %ret, %ext7
277
%cmp8 = icmp slt i64 %ret, %ext8
278
%cmp9 = icmp slt i64 %ret, %ext9
280
%sel0 = select i1 %cmp0, i64 %ret, i64 0
281
%sel1 = select i1 %cmp1, i64 %sel0, i64 1
282
%sel2 = select i1 %cmp2, i64 %sel1, i64 2
283
%sel3 = select i1 %cmp3, i64 %sel2, i64 3
284
%sel4 = select i1 %cmp4, i64 %sel3, i64 4
285
%sel5 = select i1 %cmp5, i64 %sel4, i64 5
286
%sel6 = select i1 %cmp6, i64 %sel5, i64 6
287
%sel7 = select i1 %cmp7, i64 %sel6, i64 7
288
%sel8 = select i1 %cmp8, i64 %sel7, i64 8
289
%sel9 = select i1 %cmp9, i64 %sel8, i64 9
294
; Check the comparison can be reversed if that allows CGFR to be used.
295
define double @f16(double %a, double %b, i64 %i1, i32 %unext) {
297
; CHECK: cgfr %r2, %r3
299
; CHECK: ldr %f0, %f2
301
%i2 = sext i32 %unext to i64
302
%cond = icmp slt i64 %i2, %i1
303
%res = select i1 %cond, double %a, double %b
308
define double @f17(double %a, double %b, i64 %i2, i32 *%ptr) {
310
; CHECK: cgf %r2, 0(%r3)
311
; CHECK-NEXT: jh {{\.L.*}}
312
; CHECK: ldr %f0, %f2
314
%unext = load i32 , i32 *%ptr
315
%i1 = sext i32 %unext to i64
316
%cond = icmp slt i64 %i1, %i2
317
%res = select i1 %cond, double %a, double %b