1 ; RUN: opt %loadPolly %defaultOpts -polly-codegen -enable-polly-vector -dce -S %s | FileCheck %s
2 ; Obtained from C source as:
3 ; clang -S -emit-llvm -O0 no-scevccp-outer-21.c
4 ; opt -correlated-propagation -mem2reg -instcombine -loop-simplify -indvars -instnamer no-scevccp-outer-21.s > no-scevccp-outer-21.ll
6 ; ModuleID = 'no-scevccp-outer-21.s'
7 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
8 target triple = "x86_64-unknown-linux-gnu"
10 @a = common global [40 x i32] zeroinitializer, align 16
12 define i32 @foo() nounwind uwtable noinline {
16 for.cond: ; preds = %for.inc21, %entry
17 %indvar = phi i64 [ %indvar.next, %for.inc21 ], [ 0, %entry ]
18 %i.0 = trunc i64 %indvar to i32
19 %arrayidx = getelementptr [40 x i32]* @a, i64 0, i64 %indvar
20 %exitcond1 = icmp ne i64 %indvar, 40
21 br i1 %exitcond1, label %for.body, label %for.end24
23 for.body: ; preds = %for.cond
26 for.cond4: ; preds = %for.inc, %for.body
27 %sum_j.0.in = phi i32 [ %i.0, %for.body ], [ %add14, %for.inc ]
28 %tmp = phi i16 [ 0, %for.body ], [ %inc, %for.inc ]
29 %exitcond = icmp ne i16 %tmp, 40
30 br i1 %exitcond, label %for.body9, label %for.end
32 for.body9: ; preds = %for.cond4
35 for.inc: ; preds = %for.body9
36 %conv13 = and i32 %sum_j.0.in, 65535
37 %conv11 = zext i16 %tmp to i32
38 %add14 = add nsw i32 %conv13, %conv11
39 %inc = add i16 %tmp, 1
42 for.end: ; preds = %for.cond4
43 %sum_j.0.in.lcssa = phi i32 [ %sum_j.0.in, %for.cond4 ]
44 %conv18 = and i32 %sum_j.0.in.lcssa, 65535
45 %add19 = add nsw i32 %conv18, 5
46 store i32 %add19, i32* %arrayidx, align 4
49 for.inc21: ; preds = %for.end
50 %indvar.next = add i64 %indvar, 1
53 for.end24: ; preds = %for.cond
57 define i32 @main() nounwind uwtable {
59 call void @check_vect()
62 for.cond: ; preds = %for.inc, %entry
63 %indvar2 = phi i64 [ %indvar.next3, %for.inc ], [ 0, %entry ]
64 %arrayidx = getelementptr [40 x i32]* @a, i64 0, i64 %indvar2
65 %i.0 = trunc i64 %indvar2 to i32
66 %exitcond4 = icmp ne i64 %indvar2, 40
67 br i1 %exitcond4, label %for.body, label %for.end
69 for.body: ; preds = %for.cond
70 store i32 %i.0, i32* %arrayidx, align 4
73 for.inc: ; preds = %for.body
74 %indvar.next3 = add i64 %indvar2, 1
77 for.end: ; preds = %for.cond
78 %call = call i32 @foo()
81 for.cond4: ; preds = %for.inc36, %for.end
82 %indvar = phi i64 [ %indvar.next, %for.inc36 ], [ 0, %for.end ]
83 %sum.0 = phi i32 [ 0, %for.end ], [ %add, %for.inc36 ]
84 %i.1 = trunc i64 %indvar to i32
85 %arrayidx29 = getelementptr [40 x i32]* @a, i64 0, i64 %indvar
86 %cmp6 = icmp slt i32 %i.1, 40
87 br i1 %cmp6, label %for.body7, label %for.end39
89 for.body7: ; preds = %for.cond4
92 for.cond11: ; preds = %for.inc23, %for.body7
93 %sum_j.0.in = phi i32 [ %i.1, %for.body7 ], [ %add21, %for.inc23 ]
94 %tmp = phi i16 [ 0, %for.body7 ], [ %inc25, %for.inc23 ]
95 %exitcond = icmp ne i16 %tmp, 40
96 br i1 %exitcond, label %for.body16, label %for.end26
98 for.body16: ; preds = %for.cond11
101 for.inc23: ; preds = %for.body16
102 %conv20 = and i32 %sum_j.0.in, 65535
103 %conv18 = zext i16 %tmp to i32
104 %add21 = add nsw i32 %conv20, %conv18
105 %inc25 = add i16 %tmp, 1
108 for.end26: ; preds = %for.cond11
109 %sum_j.0.in.lcssa = phi i32 [ %sum_j.0.in, %for.cond11 ]
110 %add = add nsw i32 %sum.0, %i.1
111 %tmp30 = load i32* %arrayidx29, align 4
112 %conv32 = and i32 %sum_j.0.in.lcssa, 65535
113 %add33 = add nsw i32 %conv32, 5
114 %cmp34 = icmp eq i32 %tmp30, %add33
115 br i1 %cmp34, label %if.end, label %if.then
117 if.then: ; preds = %for.end26
118 call void @abort() noreturn nounwind
121 if.end: ; preds = %for.end26
124 for.inc36: ; preds = %if.end
125 %indvar.next = add i64 %indvar, 1
128 for.end39: ; preds = %for.cond4
129 %sum.0.lcssa = phi i32 [ %sum.0, %for.cond4 ]
130 %cmp42 = icmp eq i32 %call, %sum.0.lcssa
131 br i1 %cmp42, label %if.end45, label %if.then44
133 if.then44: ; preds = %for.end39
134 call void @abort() noreturn nounwind
137 if.end45: ; preds = %for.end39
141 define internal void @check_vect() nounwind uwtable noinline {
143 %a = alloca i32, align 4
144 %b = alloca i32, align 4
145 %c = alloca i32, align 4
146 %d = alloca i32, align 4
147 %call = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* @sig_ill_handler) nounwind
148 %call1 = call i32 @__get_cpuid(i32 1, i32* %a, i32* %b, i32* %c, i32* %d)
149 %tobool = icmp eq i32 %call1, 0
150 br i1 %tobool, label %if.then, label %lor.lhs.false
152 lor.lhs.false: ; preds = %entry
153 %tmp4 = load i32* %d, align 4
154 %and6 = and i32 %tmp4, 67108864
155 %cmp = icmp eq i32 %and6, 0
156 br i1 %cmp, label %if.then, label %if.end
158 if.then: ; preds = %entry, %lor.lhs.false
159 call void @exit(i32 0) noreturn nounwind
162 if.end: ; preds = %lor.lhs.false
163 %call7 = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* null) nounwind
167 declare void @abort() noreturn
169 declare void (i32)* @signal(i32, void (i32)*) nounwind
171 define internal void @sig_ill_handler(i32 %sig) nounwind uwtable {
173 call void @exit(i32 0) noreturn nounwind
176 return: ; No predecessors!
180 define internal i32 @__get_cpuid(i32 %__level, i32* %__eax, i32* %__ebx, i32* %__ecx, i32* %__edx) nounwind uwtable inlinehint {
182 %and = and i32 %__level, -2147483648
183 %call = call i32 @__get_cpuid_max(i32 %and, i32* null)
184 %cmp = icmp ult i32 %call, %__level
185 br i1 %cmp, label %if.then, label %if.end
187 if.then: ; preds = %entry
190 if.end: ; preds = %entry
191 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__level) nounwind, !srcloc !0
192 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
193 %asmresult8 = extractvalue { i32, i32, i32, i32 } %tmp, 1
194 %asmresult9 = extractvalue { i32, i32, i32, i32 } %tmp, 2
195 %asmresult10 = extractvalue { i32, i32, i32, i32 } %tmp, 3
196 store i32 %asmresult, i32* %__eax, align 4
197 store i32 %asmresult8, i32* %__ebx, align 4
198 store i32 %asmresult9, i32* %__ecx, align 4
199 store i32 %asmresult10, i32* %__edx, align 4
202 return: ; preds = %if.end, %if.then
203 %retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.end ]
207 declare void @exit(i32) noreturn
209 define internal i32 @__get_cpuid_max(i32 %__ext, i32* %__sig) nounwind uwtable inlinehint {
211 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__ext) nounwind, !srcloc !1
212 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
213 %tobool = icmp eq i32* %__sig, null
214 br i1 %tobool, label %if.end, label %if.then
216 if.then: ; preds = %entry
217 %asmresult1 = extractvalue { i32, i32, i32, i32 } %tmp, 1
218 store i32 %asmresult1, i32* %__sig, align 4
221 if.end: ; preds = %entry, %if.then
225 !0 = metadata !{i32 -2147343381, i32 -2147343373}
226 !1 = metadata !{i32 -2147343504, i32 -2147343496}