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-11.c
4 ; opt -correlated-propagation -mem2reg -instcombine -loop-simplify -indvars -instnamer no-scevccp-outer-11.s > no-scevccp-outer-11.ll
6 ; ModuleID = 'no-scevccp-outer-11.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 i64
19 for.cond: ; preds = %for.inc11, %entry
20 %indvar = phi i64 [ %indvar.next, %for.inc11 ], [ 0, %entry ]
21 %arrayidx = getelementptr [40 x i32]* @a, i64 0, i64 %indvar
22 %exitcond2 = icmp ne i64 %indvar, %tmp1
23 br i1 %exitcond2, label %for.body, label %for.end14
25 for.body: ; preds = %for.cond
28 for.cond2: ; preds = %for.inc, %for.body
29 %tmp4 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
30 %exitcond = icmp ne i32 %tmp4, 40
31 br i1 %exitcond, label %for.body5, label %for.end
33 for.body5: ; preds = %for.cond2
36 for.inc: ; preds = %for.body5
37 %inc = add nsw i32 %tmp4, 1
40 for.end: ; preds = %for.cond2
41 store i32 780, i32* %arrayidx, align 4
44 for.inc11: ; preds = %for.end
45 %indvar.next = add i64 %indvar, 1
48 for.end14: ; preds = %for.cond
52 define i32 @main() nounwind uwtable {
54 call void @check_vect()
57 for.cond: ; preds = %for.inc, %entry
58 %indvar1 = phi i64 [ %indvar.next2, %for.inc ], [ 0, %entry ]
59 %arrayidx = getelementptr [40 x i32]* @a, i64 0, i64 %indvar1
60 %i.0 = trunc i64 %indvar1 to i32
61 %exitcond3 = icmp ne i64 %indvar1, 40
62 br i1 %exitcond3, label %for.body, label %for.end
64 for.body: ; preds = %for.cond
65 store i32 %i.0, i32* %arrayidx, align 4
68 for.inc: ; preds = %for.body
69 %indvar.next2 = add i64 %indvar1, 1
72 for.end: ; preds = %for.cond
73 %call = call i32 @foo(i32 40)
76 for.cond4: ; preds = %for.inc24, %for.end
77 %indvar = phi i64 [ %indvar.next, %for.inc24 ], [ 0, %for.end ]
78 %arrayidx20 = getelementptr [40 x i32]* @a, i64 0, i64 %indvar
79 %i.1 = trunc i64 %indvar to i32
80 %cmp6 = icmp slt i32 %i.1, 40
81 br i1 %cmp6, label %for.body7, label %for.end27
83 for.body7: ; preds = %for.cond4
86 for.cond8: ; preds = %for.inc14, %for.body7
87 %tmp = phi i32 [ 0, %for.body7 ], [ %inc16, %for.inc14 ]
88 %exitcond = icmp ne i32 %tmp, 40
89 br i1 %exitcond, label %for.body11, label %for.end17
91 for.body11: ; preds = %for.cond8
94 for.inc14: ; preds = %for.body11
95 %inc16 = add nsw i32 %tmp, 1
98 for.end17: ; preds = %for.cond8
99 %tmp21 = load i32* %arrayidx20, align 4
100 %cmp23 = icmp eq i32 %tmp21, 780
101 br i1 %cmp23, label %if.end, label %if.then
103 if.then: ; preds = %for.end17
104 call void @abort() noreturn nounwind
107 if.end: ; preds = %for.end17
110 for.inc24: ; preds = %if.end
111 %indvar.next = add i64 %indvar, 1
114 for.end27: ; preds = %for.cond4
118 define internal void @check_vect() nounwind uwtable noinline {
120 %a = alloca i32, align 4
121 %b = alloca i32, align 4
122 %c = alloca i32, align 4
123 %d = alloca i32, align 4
124 %call = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* @sig_ill_handler) nounwind
125 %call1 = call i32 @__get_cpuid(i32 1, i32* %a, i32* %b, i32* %c, i32* %d)
126 %tobool = icmp eq i32 %call1, 0
127 br i1 %tobool, label %if.then, label %lor.lhs.false
129 lor.lhs.false: ; preds = %entry
130 %tmp4 = load i32* %d, align 4
131 %and6 = and i32 %tmp4, 67108864
132 %cmp = icmp eq i32 %and6, 0
133 br i1 %cmp, label %if.then, label %if.end
135 if.then: ; preds = %entry, %lor.lhs.false
136 call void @exit(i32 0) noreturn nounwind
139 if.end: ; preds = %lor.lhs.false
140 %call7 = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* null) nounwind
144 declare void @abort() noreturn
146 declare void (i32)* @signal(i32, void (i32)*) nounwind
148 define internal void @sig_ill_handler(i32 %sig) nounwind uwtable {
150 call void @exit(i32 0) noreturn nounwind
153 return: ; No predecessors!
157 define internal i32 @__get_cpuid(i32 %__level, i32* %__eax, i32* %__ebx, i32* %__ecx, i32* %__edx) nounwind uwtable inlinehint {
159 %and = and i32 %__level, -2147483648
160 %call = call i32 @__get_cpuid_max(i32 %and, i32* null)
161 %cmp = icmp ult i32 %call, %__level
162 br i1 %cmp, label %if.then, label %if.end
164 if.then: ; preds = %entry
167 if.end: ; preds = %entry
168 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__level) nounwind, !srcloc !0
169 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
170 %asmresult8 = extractvalue { i32, i32, i32, i32 } %tmp, 1
171 %asmresult9 = extractvalue { i32, i32, i32, i32 } %tmp, 2
172 %asmresult10 = extractvalue { i32, i32, i32, i32 } %tmp, 3
173 store i32 %asmresult, i32* %__eax, align 4
174 store i32 %asmresult8, i32* %__ebx, align 4
175 store i32 %asmresult9, i32* %__ecx, align 4
176 store i32 %asmresult10, i32* %__edx, align 4
179 return: ; preds = %if.end, %if.then
180 %retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.end ]
184 declare void @exit(i32) noreturn
186 define internal i32 @__get_cpuid_max(i32 %__ext, i32* %__sig) nounwind uwtable inlinehint {
188 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__ext) nounwind, !srcloc !1
189 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
190 %tobool = icmp eq i32* %__sig, null
191 br i1 %tobool, label %if.end, label %if.then
193 if.then: ; preds = %entry
194 %asmresult1 = extractvalue { i32, i32, i32, i32 } %tmp, 1
195 store i32 %asmresult1, i32* %__sig, align 4
198 if.end: ; preds = %entry, %if.then
202 !0 = metadata !{i32 -2147343592, i32 -2147343584}
203 !1 = metadata !{i32 -2147343715, i32 -2147343707}