1 ; RUN: llc < %s -O2 -mtriple=x86_64-linux-android -mattr=+mmx | FileCheck %s
2 ; RUN: llc < %s -O2 -mtriple=x86_64-linux-gnu -mattr=+mmx | FileCheck %s
4 ; These tests were generated from simplified libm C code.
5 ; When compiled for the x86_64-linux-android target,
6 ; long double is mapped to f128 type that should be passed
7 ; in SSE registers. When the f128 type calling convention
8 ; problem was fixed, old llvm code failed to handle f128 values
9 ; in several f128/i128 type operations. These unit tests hopefully
10 ; will catch regression in any future change in this area.
11 ; To modified or enhance these test cases, please consult libm
12 ; code pattern and compile with -target x86_64-linux-android
13 ; to generate IL. The __float128 keyword if not accepted by
14 ; clang, just define it to "long double".
17 ; typedef long double __float128;
21 ; unsigned long manl :64;
22 ; unsigned long manh :48;
23 ; unsigned int exp :15;
24 ; unsigned int sign :1;
27 ; unsigned long manl :64;
28 ; unsigned long manh :48;
29 ; unsigned int expsign :16;
34 ; void foo(__float128 x);
35 ; void TestUnionLD1(__float128 s, unsigned long n) {
43 define void @TestUnionLD1(fp128 %s, i64 %n) #0 {
45 %0 = bitcast fp128 %s to i128
46 %1 = zext i64 %n to i128
47 %bf.value = shl nuw i128 %1, 64
48 %bf.shl = and i128 %bf.value, 5192296858534809181786422619668480
49 %bf.clear = and i128 %0, -5192296858534809181786422619668481
50 %bf.set = or i128 %bf.shl, %bf.clear
51 %2 = bitcast i128 %bf.set to fp128
52 tail call void @foo(fp128 %2) #2
54 ; CHECK-LABEL: TestUnionLD1:
55 ; CHECK: movaps %xmm0, -24(%rsp)
56 ; CHECK-NEXT: movq -24(%rsp), %rax
57 ; CHECK-NEXT: movabsq $281474976710655, %rcx
58 ; CHECK-NEXT: andq %rdi, %rcx
59 ; CHECK-NEXT: movabsq $-281474976710656, %rdx
60 ; CHECK-NEXT: andq -16(%rsp), %rdx
61 ; CHECK-NEXT: movq %rax, -40(%rsp)
62 ; CHECK-NEXT: orq %rcx, %rdx
63 ; CHECK-NEXT: movq %rdx, -32(%rsp)
64 ; CHECK-NEXT: movaps -40(%rsp), %xmm0
69 ; __float128 TestUnionLD2(__float128 s) {
77 define fp128 @TestUnionLD2(fp128 %s) #0 {
79 %0 = bitcast fp128 %s to i128
80 %bf.clear = and i128 %0, -18446744073709551616
81 %1 = bitcast i128 %bf.clear to fp128
83 ; CHECK-LABEL: TestUnionLD2:
84 ; CHECK: movaps %xmm0, -24(%rsp)
85 ; CHECK-NEXT: movq -16(%rsp), %rax
86 ; CHECK-NEXT: movq %rax, -32(%rsp)
87 ; CHECK-NEXT: movq $0, -40(%rsp)
88 ; CHECK-NEXT: movaps -40(%rsp), %xmm0
93 ; __float128 TestI128_1(__float128 x)
98 ; return (z.e < 0.1L) ? 1.0L : 2.0L;
100 define fp128 @TestI128_1(fp128 %x) #0 {
102 %0 = bitcast fp128 %x to i128
103 %bf.clear = and i128 %0, 170141183460469231731687303715884105727
104 %1 = bitcast i128 %bf.clear to fp128
105 %cmp = fcmp olt fp128 %1, 0xL999999999999999A3FFB999999999999
106 %cond = select i1 %cmp, fp128 0xL00000000000000003FFF000000000000, fp128 0xL00000000000000004000000000000000
108 ; CHECK-LABEL: TestI128_1:
109 ; CHECK: movaps %xmm0,
110 ; CHECK: movabsq $9223372036854775807,
111 ; CHECK: callq __lttf2
112 ; CHECK: testl %eax, %eax
113 ; CHECK: movaps {{.*}}, %xmm0
118 ; __float128 TestI128_2(__float128 x, __float128 y)
121 ; union IEEEl2bits ge_u;
123 ; hx = ge_u.xbits.expsign;
124 ; return (hx & 0x8000) == 0 ? x : y;
126 define fp128 @TestI128_2(fp128 %x, fp128 %y) #0 {
128 %0 = bitcast fp128 %x to i128
129 %cmp = icmp sgt i128 %0, -1
130 %cond = select i1 %cmp, fp128 %x, fp128 %y
132 ; CHECK-LABEL: TestI128_2:
133 ; CHECK: movaps %xmm0, -24(%rsp)
134 ; CHECK-NEXT: cmpq $0, -16(%rsp)
136 ; CHECK: movaps %xmm1, %xmm0
141 ; __float128 TestI128_3(__float128 x, int *ex)
143 ; union IEEEl2bits u;
145 ; if (u.bits.exp == 0) {
147 ; u.bits.exp = 0x3ffe;
151 define fp128 @TestI128_3(fp128 %x, i32* nocapture readnone %ex) #0 {
153 %0 = bitcast fp128 %x to i128
154 %bf.cast = and i128 %0, 170135991163610696904058773219554885632
155 %cmp = icmp eq i128 %bf.cast, 0
156 br i1 %cmp, label %if.then, label %if.end
158 if.then: ; preds = %entry
159 %mul = fmul fp128 %x, 0xL00000000000000004201000000000000
160 %1 = bitcast fp128 %mul to i128
161 %bf.clear4 = and i128 %1, -170135991163610696904058773219554885633
162 %bf.set = or i128 %bf.clear4, 85060207136517546210586590865283612672
165 if.end: ; preds = %if.then, %entry
166 %u.sroa.0.0 = phi i128 [ %bf.set, %if.then ], [ %0, %entry ]
167 %2 = bitcast i128 %u.sroa.0.0 to fp128
169 ; CHECK-LABEL: TestI128_3:
170 ; CHECK: movaps %xmm0,
171 ; CHECK: movabsq $9223090561878065152,
173 ; CHECK: callq __multf3
174 ; CHECK-NEXT: movaps %xmm0
175 ; CHECK: movabsq $-9223090561878065153,
176 ; CHECK: movabsq $4611123068473966592,
181 ; __float128 TestI128_4(__float128 x)
183 ; union IEEEl2bits u;
190 define fp128 @TestI128_4(fp128 %x) #0 {
192 %0 = bitcast fp128 %x to i128
193 %bf.clear = and i128 %0, -18446744073709551616
194 %1 = bitcast i128 %bf.clear to fp128
195 %add = fadd fp128 %1, %x
197 ; CHECK-LABEL: TestI128_4:
198 ; CHECK: movaps %xmm0, %xmm1
199 ; CHECK-NEXT: movaps %xmm1, 16(%rsp)
200 ; CHECK-NEXT: movq 24(%rsp), %rax
201 ; CHECK-NEXT: movq %rax, 8(%rsp)
202 ; CHECK-NEXT: movq $0, (%rsp)
203 ; CHECK-NEXT: movaps (%rsp), %xmm0
204 ; CHECK-NEXT: callq __addtf3
208 @v128 = common global i128 0, align 16
209 @v128_2 = common global i128 0, align 16
212 ; unsigned __int128 v128, v128_2;
213 ; void TestShift128_2() {
214 ; v128 = ((v128 << 96) | v128_2);
216 define void @TestShift128_2() #2 {
218 %0 = load i128, i128* @v128, align 16
219 %shl = shl i128 %0, 96
220 %1 = load i128, i128* @v128_2, align 16
221 %or = or i128 %shl, %1
222 store i128 %or, i128* @v128, align 16
224 ; CHECK-LABEL: TestShift128_2:
225 ; CHECK: movq v128(%rip), %rax
226 ; CHECK-NEXT: shlq $32, %rax
227 ; CHECK-NEXT: movq v128_2(%rip), %rcx
228 ; CHECK-NEXT: orq v128_2+8(%rip), %rax
229 ; CHECK-NEXT: movq %rcx, v128(%rip)
230 ; CHECK-NEXT: movq %rax, v128+8(%rip)
234 define fp128 @acosl(fp128 %x) #0 {
236 %0 = bitcast fp128 %x to i128
237 %bf.clear = and i128 %0, -18446744073709551616
238 %1 = bitcast i128 %bf.clear to fp128
239 %add = fadd fp128 %1, %x
241 ; CHECK-LABEL: acosl:
242 ; CHECK: movaps %xmm0, %xmm1
243 ; CHECK-NEXT: movaps %xmm1, 16(%rsp)
244 ; CHECK-NEXT: movq 24(%rsp), %rax
245 ; CHECK-NEXT: movq %rax, 8(%rsp)
246 ; CHECK-NEXT: movq $0, (%rsp)
247 ; CHECK-NEXT: movaps (%rsp), %xmm0
248 ; CHECK-NEXT: callq __addtf3
252 ; Compare i128 values and check i128 constants.
253 define fp128 @TestComp(fp128 %x, fp128 %y) #0 {
255 %0 = bitcast fp128 %x to i128
256 %cmp = icmp sgt i128 %0, -1
257 %cond = select i1 %cmp, fp128 %x, fp128 %y
259 ; CHECK-LABEL: TestComp:
260 ; CHECK: movaps %xmm0, -24(%rsp)
261 ; CHECK-NEXT: cmpq $0, -16(%rsp)
263 ; CHECK: movaps %xmm1, %xmm0
267 declare void @foo(fp128) #1
269 ; Test logical operations on fp128 values.
270 define fp128 @TestFABS_LD(fp128 %x) #0 {
272 %call = tail call fp128 @fabsl(fp128 %x) #2
274 ; CHECK-LABEL: TestFABS_LD
275 ; CHECK: andps {{.*}}, %xmm0
279 declare fp128 @fabsl(fp128) #1
281 declare fp128 @copysignl(fp128, fp128) #1
283 ; Test more complicated logical operations generated from copysignl.
284 define void @TestCopySign({ fp128, fp128 }* noalias nocapture sret %agg.result, { fp128, fp128 }* byval nocapture readonly align 16 %z) #0 {
286 %z.realp = getelementptr inbounds { fp128, fp128 }, { fp128, fp128 }* %z, i64 0, i32 0
287 %z.real = load fp128, fp128* %z.realp, align 16
288 %z.imagp = getelementptr inbounds { fp128, fp128 }, { fp128, fp128 }* %z, i64 0, i32 1
289 %z.imag4 = load fp128, fp128* %z.imagp, align 16
290 %cmp = fcmp ogt fp128 %z.real, %z.imag4
291 %sub = fsub fp128 %z.imag4, %z.imag4
292 br i1 %cmp, label %if.then, label %cleanup
294 if.then: ; preds = %entry
295 %call = tail call fp128 @fabsl(fp128 %sub) #2
298 cleanup: ; preds = %entry, %if.then
299 %z.real.sink = phi fp128 [ %z.real, %if.then ], [ %sub, %entry ]
300 %call.sink = phi fp128 [ %call, %if.then ], [ %z.real, %entry ]
301 %call5 = tail call fp128 @copysignl(fp128 %z.real.sink, fp128 %z.imag4) #2
302 %0 = getelementptr inbounds { fp128, fp128 }, { fp128, fp128 }* %agg.result, i64 0, i32 0
303 %1 = getelementptr inbounds { fp128, fp128 }, { fp128, fp128 }* %agg.result, i64 0, i32 1
304 store fp128 %call.sink, fp128* %0, align 16
305 store fp128 %call5, fp128* %1, align 16
307 ; CHECK-LABEL: TestCopySign
309 ; CHECK: callq __subtf3
311 ; CHECK: callq __gttf2
313 ; CHECK: andps {{.*}}, %xmm0
318 attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+ssse3,+sse3,+popcnt,+sse,+sse2,+sse4.1,+sse4.2" "unsafe-fp-math"="false" "use-soft-float"="false" }
319 attributes #1 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+ssse3,+sse3,+popcnt,+sse,+sse2,+sse4.1,+sse4.2" "unsafe-fp-math"="false" "use-soft-float"="false" }
320 attributes #2 = { nounwind readnone }