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-6-global.c
4 ; opt -correlated-propagation -mem2reg -instcombine -loop-simplify -indvars -instnamer no-scevccp-outer-6-global.s > no-scevccp-outer-6-global.ll
6 ; ModuleID = 'no-scevccp-outer-6-global.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(i32* noalias %b, i32 %k) nounwind uwtable noinline {
16 for.cond: ; preds = %for.inc15, %entry
17 %indvar = phi i64 [ %indvar.next, %for.inc15 ], [ 0, %entry ]
18 %arrayidx14 = getelementptr [40 x i32]* @a, i64 0, i64 %indvar
19 %arrayidx = getelementptr i32* %b, i64 %indvar
20 %exitcond1 = icmp ne i64 %indvar, 40
21 br i1 %exitcond1, label %for.body, label %for.end18
23 for.body: ; preds = %for.cond
24 %tmp3 = load i32* %arrayidx, align 4
27 for.cond4: ; preds = %for.inc, %for.body
28 %tmp4 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
29 %exitcond = icmp ne i32 %tmp4, 40
30 br i1 %exitcond, label %for.body7, label %for.end
32 for.body7: ; preds = %for.cond4
35 for.inc: ; preds = %for.body7
36 %inc = add nsw i32 %tmp4, 1
39 for.end: ; preds = %for.cond4
40 %tmp = add i32 %tmp3, 780
41 store i32 %tmp, i32* %arrayidx14, align 4
44 for.inc15: ; preds = %for.end
45 %indvar.next = add i64 %indvar, 1
48 for.end18: ; preds = %for.cond
49 %idxprom20 = sext i32 %k to i64
50 %arrayidx21 = getelementptr inbounds [40 x i32]* @a, i64 0, i64 %idxprom20
51 %tmp22 = load i32* %arrayidx21, align 4
55 define i32 @main() nounwind uwtable {
57 %b = alloca [40 x i32], align 16
58 %a = alloca [40 x i32], align 16
59 call void @check_vect()
62 for.cond: ; preds = %for.inc, %entry
63 %indvar6 = phi i64 [ %indvar.next7, %for.inc ], [ 0, %entry ]
64 %arrayidx = getelementptr [40 x i32]* %b, i64 0, i64 %indvar6
65 %tmp9 = add i64 %indvar6, 2
66 %add = trunc i64 %tmp9 to i32
67 %exitcond8 = icmp ne i64 %indvar6, 40
68 br i1 %exitcond8, label %for.body, label %for.end
70 for.body: ; preds = %for.cond
71 store i32 %add, i32* %arrayidx, align 4
74 for.inc: ; preds = %for.body
75 %indvar.next7 = add i64 %indvar6, 1
78 for.end: ; preds = %for.cond
81 for.cond4: ; preds = %for.inc12, %for.end
82 %indvar2 = phi i64 [ %indvar.next3, %for.inc12 ], [ 0, %for.end ]
83 %arrayidx11 = getelementptr [40 x i32]* %a, i64 0, i64 %indvar2
84 %i.1 = trunc i64 %indvar2 to i32
85 %exitcond4 = icmp ne i64 %indvar2, 40
86 br i1 %exitcond4, label %for.body7, label %for.end15
88 for.body7: ; preds = %for.cond4
89 %arraydecay = getelementptr inbounds [40 x i32]* %b, i64 0, i64 0
90 %call = call i32 @foo(i32* %arraydecay, i32 %i.1)
91 store i32 %call, i32* %arrayidx11, align 4
94 for.inc12: ; preds = %for.body7
95 %indvar.next3 = add i64 %indvar2, 1
98 for.end15: ; preds = %for.cond4
101 for.cond16: ; preds = %for.inc41, %for.end15
102 %indvar = phi i64 [ %indvar.next, %for.inc41 ], [ 0, %for.end15 ]
103 %arrayidx37 = getelementptr [40 x i32]* %a, i64 0, i64 %indvar
104 %arrayidx22 = getelementptr [40 x i32]* %b, i64 0, i64 %indvar
105 %i.2 = trunc i64 %indvar to i32
106 %cmp18 = icmp slt i32 %i.2, 40
107 br i1 %cmp18, label %for.body19, label %for.end44
109 for.body19: ; preds = %for.cond16
110 %tmp23 = load i32* %arrayidx22, align 4
113 for.cond24: ; preds = %for.inc31, %for.body19
114 %tmp12 = phi i32 [ 0, %for.body19 ], [ %inc33, %for.inc31 ]
115 %exitcond = icmp ne i32 %tmp12, 40
116 br i1 %exitcond, label %for.body27, label %for.end34
118 for.body27: ; preds = %for.cond24
121 for.inc31: ; preds = %for.body27
122 %inc33 = add nsw i32 %tmp12, 1
125 for.end34: ; preds = %for.cond24
126 %tmp = add i32 %tmp23, 780
127 %tmp38 = load i32* %arrayidx37, align 4
128 %cmp40 = icmp eq i32 %tmp38, %tmp
129 br i1 %cmp40, label %if.end, label %if.then
131 if.then: ; preds = %for.end34
132 call void @abort() noreturn nounwind
135 if.end: ; preds = %for.end34
138 for.inc41: ; preds = %if.end
139 %indvar.next = add i64 %indvar, 1
142 for.end44: ; preds = %for.cond16
146 define internal void @check_vect() nounwind uwtable noinline {
148 %a = alloca i32, align 4
149 %b = alloca i32, align 4
150 %c = alloca i32, align 4
151 %d = alloca i32, align 4
152 %call = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* @sig_ill_handler) nounwind
153 %call1 = call i32 @__get_cpuid(i32 1, i32* %a, i32* %b, i32* %c, i32* %d)
154 %tobool = icmp eq i32 %call1, 0
155 br i1 %tobool, label %if.then, label %lor.lhs.false
157 lor.lhs.false: ; preds = %entry
158 %tmp4 = load i32* %d, align 4
159 %and6 = and i32 %tmp4, 67108864
160 %cmp = icmp eq i32 %and6, 0
161 br i1 %cmp, label %if.then, label %if.end
163 if.then: ; preds = %entry, %lor.lhs.false
164 call void @exit(i32 0) noreturn nounwind
167 if.end: ; preds = %lor.lhs.false
168 %call7 = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* null) nounwind
172 declare void @abort() noreturn
174 declare void (i32)* @signal(i32, void (i32)*) nounwind
176 define internal void @sig_ill_handler(i32 %sig) nounwind uwtable {
178 call void @exit(i32 0) noreturn nounwind
181 return: ; No predecessors!
185 define internal i32 @__get_cpuid(i32 %__level, i32* %__eax, i32* %__ebx, i32* %__ecx, i32* %__edx) nounwind uwtable inlinehint {
187 %and = and i32 %__level, -2147483648
188 %call = call i32 @__get_cpuid_max(i32 %and, i32* null)
189 %cmp = icmp ult i32 %call, %__level
190 br i1 %cmp, label %if.then, label %if.end
192 if.then: ; preds = %entry
195 if.end: ; preds = %entry
196 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__level) nounwind, !srcloc !0
197 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
198 %asmresult8 = extractvalue { i32, i32, i32, i32 } %tmp, 1
199 %asmresult9 = extractvalue { i32, i32, i32, i32 } %tmp, 2
200 %asmresult10 = extractvalue { i32, i32, i32, i32 } %tmp, 3
201 store i32 %asmresult, i32* %__eax, align 4
202 store i32 %asmresult8, i32* %__ebx, align 4
203 store i32 %asmresult9, i32* %__ecx, align 4
204 store i32 %asmresult10, i32* %__edx, align 4
207 return: ; preds = %if.end, %if.then
208 %retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.end ]
212 declare void @exit(i32) noreturn
214 define internal i32 @__get_cpuid_max(i32 %__ext, i32* %__sig) nounwind uwtable inlinehint {
216 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__ext) nounwind, !srcloc !1
217 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
218 %tobool = icmp eq i32* %__sig, null
219 br i1 %tobool, label %if.end, label %if.then
221 if.then: ; preds = %entry
222 %asmresult1 = extractvalue { i32, i32, i32, i32 } %tmp, 1
223 store i32 %asmresult1, i32* %__sig, align 4
226 if.end: ; preds = %entry, %if.then
230 !0 = metadata !{i32 -2147343334, i32 -2147343326}
231 !1 = metadata !{i32 -2147343457, i32 -2147343449}