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-9.c
4 ; opt -correlated-propagation -mem2reg -instcombine -loop-simplify -indvars -instnamer no-scevccp-outer-9.s > no-scevccp-outer-9.ll
6 ; ModuleID = 'no-scevccp-outer-9.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 %tmp = icmp sgt i32 %n, 0
15 %smax = select i1 %tmp, i32 %n, i32 0
16 %tmp1 = zext i32 %smax to i33
17 %tmp2 = add i32 %smax, -1
18 %tmp3 = zext i32 %tmp2 to i33
19 %tmp4 = mul i33 %tmp1, %tmp3
20 %tmp5 = lshr i33 %tmp4, 1
21 %tmp6 = trunc i33 %tmp5 to i32
24 for.cond: ; preds = %for.inc11, %entry
25 %indvar = phi i64 [ %indvar.next, %for.inc11 ], [ 0, %entry ]
26 %arrayidx = getelementptr [40 x i32]* @a, i64 0, i64 %indvar
27 %exitcond7 = icmp ne i64 %indvar, 40
28 br i1 %exitcond7, label %for.body, label %for.end14
30 for.body: ; preds = %for.cond
33 for.cond1: ; preds = %for.inc, %for.body
34 %tmp9 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
35 %exitcond = icmp ne i32 %tmp9, %smax
36 br i1 %exitcond, label %for.body5, label %for.end
38 for.body5: ; preds = %for.cond1
41 for.inc: ; preds = %for.body5
42 %inc = add nsw i32 %tmp9, 1
45 for.end: ; preds = %for.cond1
46 store i32 %tmp6, i32* %arrayidx, align 4
49 for.inc11: ; preds = %for.end
50 %indvar.next = add i64 %indvar, 1
53 for.end14: ; preds = %for.cond
57 define i32 @main() nounwind uwtable {
59 call void @check_vect()
62 for.cond: ; preds = %for.inc, %entry
63 %indvar1 = phi i64 [ %indvar.next2, %for.inc ], [ 0, %entry ]
64 %arrayidx = getelementptr [40 x i32]* @a, i64 0, i64 %indvar1
65 %i.0 = trunc i64 %indvar1 to i32
66 %exitcond3 = icmp ne i64 %indvar1, 40
67 br i1 %exitcond3, 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.next2 = add i64 %indvar1, 1
77 for.end: ; preds = %for.cond
78 %call = call i32 @foo(i32 40)
81 for.cond4: ; preds = %for.inc24, %for.end
82 %indvar = phi i64 [ %indvar.next, %for.inc24 ], [ 0, %for.end ]
83 %arrayidx20 = getelementptr [40 x i32]* @a, i64 0, i64 %indvar
84 %i.1 = trunc i64 %indvar to i32
85 %cmp6 = icmp slt i32 %i.1, 40
86 br i1 %cmp6, label %for.body7, label %for.end27
88 for.body7: ; preds = %for.cond4
91 for.cond8: ; preds = %for.inc14, %for.body7
92 %tmp = phi i32 [ 0, %for.body7 ], [ %inc16, %for.inc14 ]
93 %exitcond = icmp ne i32 %tmp, 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 %tmp, 1
103 for.end17: ; preds = %for.cond8
104 %tmp21 = load i32* %arrayidx20, align 4
105 %cmp23 = icmp eq i32 %tmp21, 780
106 br i1 %cmp23, label %if.end, label %if.then
108 if.then: ; preds = %for.end17
109 call void @abort() noreturn nounwind
112 if.end: ; preds = %for.end17
115 for.inc24: ; preds = %if.end
116 %indvar.next = add i64 %indvar, 1
119 for.end27: ; preds = %for.cond4
123 define internal void @check_vect() nounwind uwtable noinline {
125 %a = alloca i32, align 4
126 %b = alloca i32, align 4
127 %c = alloca i32, align 4
128 %d = alloca i32, align 4
129 %call = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* @sig_ill_handler) nounwind
130 %call1 = call i32 @__get_cpuid(i32 1, i32* %a, i32* %b, i32* %c, i32* %d)
131 %tobool = icmp eq i32 %call1, 0
132 br i1 %tobool, label %if.then, label %lor.lhs.false
134 lor.lhs.false: ; preds = %entry
135 %tmp4 = load i32* %d, align 4
136 %and6 = and i32 %tmp4, 67108864
137 %cmp = icmp eq i32 %and6, 0
138 br i1 %cmp, label %if.then, label %if.end
140 if.then: ; preds = %entry, %lor.lhs.false
141 call void @exit(i32 0) noreturn nounwind
144 if.end: ; preds = %lor.lhs.false
145 %call7 = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* null) nounwind
149 declare void @abort() noreturn
151 declare void (i32)* @signal(i32, void (i32)*) nounwind
153 define internal void @sig_ill_handler(i32 %sig) nounwind uwtable {
155 call void @exit(i32 0) noreturn nounwind
158 return: ; No predecessors!
162 define internal i32 @__get_cpuid(i32 %__level, i32* %__eax, i32* %__ebx, i32* %__ecx, i32* %__edx) nounwind uwtable inlinehint {
164 %and = and i32 %__level, -2147483648
165 %call = call i32 @__get_cpuid_max(i32 %and, i32* null)
166 %cmp = icmp ult i32 %call, %__level
167 br i1 %cmp, label %if.then, label %if.end
169 if.then: ; preds = %entry
172 if.end: ; preds = %entry
173 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__level) nounwind, !srcloc !0
174 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
175 %asmresult8 = extractvalue { i32, i32, i32, i32 } %tmp, 1
176 %asmresult9 = extractvalue { i32, i32, i32, i32 } %tmp, 2
177 %asmresult10 = extractvalue { i32, i32, i32, i32 } %tmp, 3
178 store i32 %asmresult, i32* %__eax, align 4
179 store i32 %asmresult8, i32* %__ebx, align 4
180 store i32 %asmresult9, i32* %__ecx, align 4
181 store i32 %asmresult10, i32* %__edx, align 4
184 return: ; preds = %if.end, %if.then
185 %retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.end ]
189 declare void @exit(i32) noreturn
191 define internal i32 @__get_cpuid_max(i32 %__ext, i32* %__sig) nounwind uwtable inlinehint {
193 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__ext) nounwind, !srcloc !1
194 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
195 %tobool = icmp eq i32* %__sig, null
196 br i1 %tobool, label %if.end, label %if.then
198 if.then: ; preds = %entry
199 %asmresult1 = extractvalue { i32, i32, i32, i32 } %tmp, 1
200 store i32 %asmresult1, i32* %__sig, align 4
203 if.end: ; preds = %entry, %if.then
207 !0 = metadata !{i32 -2147343592, i32 -2147343584}
208 !1 = metadata !{i32 -2147343715, i32 -2147343707}