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-18.c
4 ; opt -correlated-propagation -mem2reg -instcombine -loop-simplify -indvars -instnamer no-scevccp-outer-18.s > no-scevccp-outer-18.ll
6 ; ModuleID = 'no-scevccp-outer-18.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.inc17, %entry
17 %indvar = phi i64 [ %indvar.next, %for.inc17 ], [ 0, %entry ]
18 %tmp = mul i64 %indvar, 2
19 %tmp3 = add i64 %tmp, 1
20 %arrayidx16 = getelementptr [40 x i32]* @a, i64 0, i64 %tmp3
21 %arrayidx = getelementptr [40 x i32]* @a, i64 0, i64 %tmp
22 %exitcond2 = icmp ne i64 %indvar, 20
23 br i1 %exitcond2, label %for.body, label %for.end20
25 for.body: ; preds = %for.cond
28 for.cond1: ; preds = %for.inc, %for.body
29 %tmp5 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
30 %exitcond = icmp ne i32 %tmp5, 40
31 br i1 %exitcond, label %for.body4, label %for.end
33 for.body4: ; preds = %for.cond1
36 for.inc: ; preds = %for.body4
37 %inc = add nsw i32 %tmp5, 1
40 for.end: ; preds = %for.cond1
41 store i32 780, i32* %arrayidx, align 8
42 %mul11 = shl nsw i32 780, 1
43 store i32 %mul11, i32* %arrayidx16, align 4
46 for.inc17: ; preds = %for.end
47 %indvar.next = add i64 %indvar, 1
50 for.end20: ; preds = %for.cond
54 define i32 @main() nounwind uwtable {
56 call void @check_vect()
59 for.cond: ; preds = %for.inc, %entry
60 %indvar4 = phi i64 [ %indvar.next5, %for.inc ], [ 0, %entry ]
61 %arrayidx = getelementptr [40 x i32]* @a, i64 0, i64 %indvar4
62 %i.0 = trunc i64 %indvar4 to i32
63 %exitcond6 = icmp ne i64 %indvar4, 40
64 br i1 %exitcond6, label %for.body, label %for.end
66 for.body: ; preds = %for.cond
67 store i32 %i.0, i32* %arrayidx, align 4
70 for.inc: ; preds = %for.body
71 %indvar.next5 = add i64 %indvar4, 1
74 for.end: ; preds = %for.cond
75 %call = call i32 @foo()
78 for.cond4: ; preds = %for.inc33, %for.end
79 %indvar = phi i64 [ %indvar.next, %for.inc33 ], [ 0, %for.end ]
80 %tmp = mul i64 %indvar, 2
81 %tmp2 = add i64 %tmp, 1
82 %arrayidx28 = getelementptr [40 x i32]* @a, i64 0, i64 %tmp2
83 %arrayidx20 = getelementptr [40 x i32]* @a, i64 0, i64 %tmp
84 %i.1 = trunc i64 %indvar to i32
85 %cmp6 = icmp slt i32 %i.1, 20
86 br i1 %cmp6, label %for.body7, label %for.end36
88 for.body7: ; preds = %for.cond4
91 for.cond8: ; preds = %for.inc14, %for.body7
92 %tmp8 = phi i32 [ 0, %for.body7 ], [ %inc16, %for.inc14 ]
93 %exitcond = icmp ne i32 %tmp8, 40
94 br i1 %exitcond, label %for.body11, label %for.end17
96 for.body11: ; preds = %for.cond8
99 for.inc14: ; preds = %for.body11
100 %inc16 = add nsw i32 %tmp8, 1
103 for.end17: ; preds = %for.cond8
104 %tmp21 = load i32* %arrayidx20, align 8
105 %cmp23 = icmp eq i32 %tmp21, 780
106 br i1 %cmp23, label %lor.lhs.false, label %if.then
108 lor.lhs.false: ; preds = %for.end17
109 %tmp29 = load i32* %arrayidx28, align 4
110 %mul31 = shl nsw i32 780, 1
111 %cmp32 = icmp eq i32 %tmp29, %mul31
112 br i1 %cmp32, label %if.end, label %if.then
114 if.then: ; preds = %lor.lhs.false, %for.end17
115 call void @abort() noreturn nounwind
118 if.end: ; preds = %lor.lhs.false
121 for.inc33: ; preds = %if.end
122 %indvar.next = add i64 %indvar, 1
125 for.end36: ; preds = %for.cond4
129 define internal void @check_vect() nounwind uwtable noinline {
131 %a = alloca i32, align 4
132 %b = alloca i32, align 4
133 %c = alloca i32, align 4
134 %d = alloca i32, align 4
135 %call = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* @sig_ill_handler) nounwind
136 %call1 = call i32 @__get_cpuid(i32 1, i32* %a, i32* %b, i32* %c, i32* %d)
137 %tobool = icmp eq i32 %call1, 0
138 br i1 %tobool, label %if.then, label %lor.lhs.false
140 lor.lhs.false: ; preds = %entry
141 %tmp4 = load i32* %d, align 4
142 %and6 = and i32 %tmp4, 67108864
143 %cmp = icmp eq i32 %and6, 0
144 br i1 %cmp, label %if.then, label %if.end
146 if.then: ; preds = %entry, %lor.lhs.false
147 call void @exit(i32 0) noreturn nounwind
150 if.end: ; preds = %lor.lhs.false
151 %call7 = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* null) nounwind
155 declare void @abort() noreturn
157 declare void (i32)* @signal(i32, void (i32)*) nounwind
159 define internal void @sig_ill_handler(i32 %sig) nounwind uwtable {
161 call void @exit(i32 0) noreturn nounwind
164 return: ; No predecessors!
168 define internal i32 @__get_cpuid(i32 %__level, i32* %__eax, i32* %__ebx, i32* %__ecx, i32* %__edx) nounwind uwtable inlinehint {
170 %and = and i32 %__level, -2147483648
171 %call = call i32 @__get_cpuid_max(i32 %and, i32* null)
172 %cmp = icmp ult i32 %call, %__level
173 br i1 %cmp, label %if.then, label %if.end
175 if.then: ; preds = %entry
178 if.end: ; preds = %entry
179 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__level) nounwind, !srcloc !0
180 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
181 %asmresult8 = extractvalue { i32, i32, i32, i32 } %tmp, 1
182 %asmresult9 = extractvalue { i32, i32, i32, i32 } %tmp, 2
183 %asmresult10 = extractvalue { i32, i32, i32, i32 } %tmp, 3
184 store i32 %asmresult, i32* %__eax, align 4
185 store i32 %asmresult8, i32* %__ebx, align 4
186 store i32 %asmresult9, i32* %__ecx, align 4
187 store i32 %asmresult10, i32* %__edx, align 4
190 return: ; preds = %if.end, %if.then
191 %retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.end ]
195 declare void @exit(i32) noreturn
197 define internal i32 @__get_cpuid_max(i32 %__ext, i32* %__sig) nounwind uwtable inlinehint {
199 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__ext) nounwind, !srcloc !1
200 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
201 %tobool = icmp eq i32* %__sig, null
202 br i1 %tobool, label %if.end, label %if.then
204 if.then: ; preds = %entry
205 %asmresult1 = extractvalue { i32, i32, i32, i32 } %tmp, 1
206 store i32 %asmresult1, i32* %__sig, align 4
209 if.end: ; preds = %entry, %if.then
213 !0 = metadata !{i32 -2147343515, i32 -2147343507}
214 !1 = metadata !{i32 -2147343638, i32 -2147343630}