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-9a.c
4 ; opt -correlated-propagation -mem2reg -instcombine -loop-simplify -indvars -instnamer no-scevccp-outer-9a.s > no-scevccp-outer-9a.ll
6 ; ModuleID = 'no-scevccp-outer-9a.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 %n) nounwind uwtable noinline {
14 %cmp = icmp slt i32 %n, 1
15 br i1 %cmp, label %if.then, label %if.end
17 if.then: ; preds = %entry
20 if.end: ; preds = %entry
22 %tmp1 = zext i32 %tmp to i33
23 %tmp2 = add i32 %n, -2
24 %tmp3 = zext i32 %tmp2 to i33
25 %tmp4 = mul i33 %tmp1, %tmp3
26 %tmp5 = lshr i33 %tmp4, 1
27 %tmp6 = trunc i33 %tmp5 to i32
28 %tmp7 = add i32 %n, %tmp6
29 %tmp8 = add i32 %tmp7, -1
32 for.cond: ; preds = %for.inc, %if.end
33 %indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %if.end ]
34 %arrayidx = getelementptr [40 x i32]* @a, i64 0, i64 %indvar
35 %exitcond10 = icmp ne i64 %indvar, 40
36 br i1 %exitcond10, label %for.body, label %for.end.loopexit
38 for.body: ; preds = %for.cond
41 do.body: ; preds = %do.cond, %for.body
42 %tmp12 = phi i32 [ 0, %for.body ], [ %tmp13, %do.cond ]
45 do.cond: ; preds = %do.body
46 %tmp13 = add nsw i32 %tmp12, 1
47 %exitcond = icmp ne i32 %tmp13, %n
48 br i1 %exitcond, label %do.body, label %do.end
50 do.end: ; preds = %do.cond
51 store i32 %tmp8, i32* %arrayidx, align 4
54 for.inc: ; preds = %do.end
55 %indvar.next = add i64 %indvar, 1
58 for.end.loopexit: ; preds = %for.cond
61 for.end: ; preds = %for.end.loopexit, %if.then
65 define i32 @main() nounwind uwtable {
67 call void @check_vect()
70 for.cond: ; preds = %for.inc, %entry
71 %indvar1 = phi i64 [ %indvar.next2, %for.inc ], [ 0, %entry ]
72 %arrayidx = getelementptr [40 x i32]* @a, i64 0, i64 %indvar1
73 %i.0 = trunc i64 %indvar1 to i32
74 %exitcond3 = icmp ne i64 %indvar1, 40
75 br i1 %exitcond3, label %for.body, label %for.end
77 for.body: ; preds = %for.cond
78 store i32 %i.0, i32* %arrayidx, align 4
81 for.inc: ; preds = %for.body
82 %indvar.next2 = add i64 %indvar1, 1
85 for.end: ; preds = %for.cond
86 %call = call i32 @foo(i32 40)
89 for.cond4: ; preds = %for.inc24, %for.end
90 %indvar = phi i64 [ %indvar.next, %for.inc24 ], [ 0, %for.end ]
91 %arrayidx20 = getelementptr [40 x i32]* @a, i64 0, i64 %indvar
92 %i.1 = trunc i64 %indvar to i32
93 %cmp6 = icmp slt i32 %i.1, 40
94 br i1 %cmp6, label %for.body7, label %for.end27
96 for.body7: ; preds = %for.cond4
99 for.cond8: ; preds = %for.inc14, %for.body7
100 %tmp = phi i32 [ 0, %for.body7 ], [ %inc16, %for.inc14 ]
101 %exitcond = icmp ne i32 %tmp, 40
102 br i1 %exitcond, label %for.body11, label %for.end17
104 for.body11: ; preds = %for.cond8
107 for.inc14: ; preds = %for.body11
108 %inc16 = add nsw i32 %tmp, 1
111 for.end17: ; preds = %for.cond8
112 %tmp21 = load i32* %arrayidx20, align 4
113 %cmp23 = icmp eq i32 %tmp21, 780
114 br i1 %cmp23, label %if.end, label %if.then
116 if.then: ; preds = %for.end17
117 call void @abort() noreturn nounwind
120 if.end: ; preds = %for.end17
123 for.inc24: ; preds = %if.end
124 %indvar.next = add i64 %indvar, 1
127 for.end27: ; preds = %for.cond4
131 define internal void @check_vect() nounwind uwtable noinline {
133 %a = alloca i32, align 4
134 %b = alloca i32, align 4
135 %c = alloca i32, align 4
136 %d = alloca i32, align 4
137 %call = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* @sig_ill_handler) nounwind
138 %call1 = call i32 @__get_cpuid(i32 1, i32* %a, i32* %b, i32* %c, i32* %d)
139 %tobool = icmp eq i32 %call1, 0
140 br i1 %tobool, label %if.then, label %lor.lhs.false
142 lor.lhs.false: ; preds = %entry
143 %tmp4 = load i32* %d, align 4
144 %and6 = and i32 %tmp4, 67108864
145 %cmp = icmp eq i32 %and6, 0
146 br i1 %cmp, label %if.then, label %if.end
148 if.then: ; preds = %entry, %lor.lhs.false
149 call void @exit(i32 0) noreturn nounwind
152 if.end: ; preds = %lor.lhs.false
153 %call7 = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* null) nounwind
157 declare void @abort() noreturn
159 declare void (i32)* @signal(i32, void (i32)*) nounwind
161 define internal void @sig_ill_handler(i32 %sig) nounwind uwtable {
163 call void @exit(i32 0) noreturn nounwind
166 return: ; No predecessors!
170 define internal i32 @__get_cpuid(i32 %__level, i32* %__eax, i32* %__ebx, i32* %__ecx, i32* %__edx) nounwind uwtable inlinehint {
172 %and = and i32 %__level, -2147483648
173 %call = call i32 @__get_cpuid_max(i32 %and, i32* null)
174 %cmp = icmp ult i32 %call, %__level
175 br i1 %cmp, label %if.then, label %if.end
177 if.then: ; preds = %entry
180 if.end: ; preds = %entry
181 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__level) nounwind, !srcloc !0
182 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
183 %asmresult8 = extractvalue { i32, i32, i32, i32 } %tmp, 1
184 %asmresult9 = extractvalue { i32, i32, i32, i32 } %tmp, 2
185 %asmresult10 = extractvalue { i32, i32, i32, i32 } %tmp, 3
186 store i32 %asmresult, i32* %__eax, align 4
187 store i32 %asmresult8, i32* %__ebx, align 4
188 store i32 %asmresult9, i32* %__ecx, align 4
189 store i32 %asmresult10, i32* %__edx, align 4
192 return: ; preds = %if.end, %if.then
193 %retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.end ]
197 declare void @exit(i32) noreturn
199 define internal i32 @__get_cpuid_max(i32 %__ext, i32* %__sig) nounwind uwtable inlinehint {
201 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__ext) nounwind, !srcloc !1
202 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
203 %tobool = icmp eq i32* %__sig, null
204 br i1 %tobool, label %if.end, label %if.then
206 if.then: ; preds = %entry
207 %asmresult1 = extractvalue { i32, i32, i32, i32 } %tmp, 1
208 store i32 %asmresult1, i32* %__sig, align 4
211 if.end: ; preds = %entry, %if.then
215 !0 = metadata !{i32 -2147343575, i32 -2147343567}
216 !1 = metadata !{i32 -2147343698, i32 -2147343690}