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-12.c
4 ; opt -correlated-propagation -mem2reg -instcombine -loop-simplify -indvars -instnamer no-scevccp-outer-12.s > no-scevccp-outer-12.ll
6 ; ModuleID = 'no-scevccp-outer-12.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 [64 x i32] zeroinitializer, align 16
11 @b = common global [64 x i16] zeroinitializer, align 16
13 define i32 @foo() nounwind uwtable noinline {
17 for.cond: ; preds = %for.inc14, %entry
18 %indvar = phi i64 [ %indvar.next, %for.inc14 ], [ 0, %entry ]
19 %arrayidx13 = getelementptr [64 x i16]* @b, i64 0, i64 %indvar
20 %arrayidx = getelementptr [64 x i32]* @a, i64 0, i64 %indvar
21 %exitcond1 = icmp ne i64 %indvar, 64
22 br i1 %exitcond1, label %for.body, label %for.end17
24 for.body: ; preds = %for.cond
27 for.cond1: ; preds = %for.inc, %for.body
28 %tmp = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
29 %exitcond = icmp ne i32 %tmp, 64
30 br i1 %exitcond, label %for.body4, label %for.end
32 for.body4: ; preds = %for.cond1
35 for.inc: ; preds = %for.body4
36 %inc = add nsw i32 %tmp, 1
39 for.end: ; preds = %for.cond1
40 store i32 2016, i32* %arrayidx, align 4
41 %conv = trunc i32 2016 to i16
42 store i16 %conv, i16* %arrayidx13, align 2
45 for.inc14: ; preds = %for.end
46 %indvar.next = add i64 %indvar, 1
49 for.end17: ; preds = %for.cond
53 define i32 @main() nounwind uwtable {
55 call void @check_vect()
56 %call = call i32 @foo()
59 for.cond: ; preds = %for.inc21, %entry
60 %indvar = phi i64 [ %indvar.next, %for.inc21 ], [ 0, %entry ]
61 %arrayidx14 = getelementptr [64 x i16]* @b, i64 0, i64 %indvar
62 %arrayidx = getelementptr [64 x i32]* @a, i64 0, i64 %indvar
63 %i.0 = trunc i64 %indvar to i32
64 %cmp = icmp slt i32 %i.0, 64
65 br i1 %cmp, label %for.body, label %for.end24
67 for.body: ; preds = %for.cond
70 for.cond1: ; preds = %for.inc, %for.body
71 %tmp = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
72 %exitcond = icmp ne i32 %tmp, 64
73 br i1 %exitcond, label %for.body4, label %for.end
75 for.body4: ; preds = %for.cond1
78 for.inc: ; preds = %for.body4
79 %inc = add nsw i32 %tmp, 1
82 for.end: ; preds = %for.cond1
83 %tmp9 = load i32* %arrayidx, align 4
84 %cmp11 = icmp eq i32 %tmp9, 2016
85 br i1 %cmp11, label %lor.lhs.false, label %if.then
87 lor.lhs.false: ; preds = %for.end
88 %tmp15 = load i16* %arrayidx14, align 2
89 %conv = sext i16 %tmp15 to i32
90 %sext = shl i32 2016, 16
91 %conv18 = ashr exact i32 %sext, 16
92 %cmp19 = icmp eq i32 %conv, %conv18
93 br i1 %cmp19, label %if.end, label %if.then
95 if.then: ; preds = %lor.lhs.false, %for.end
96 call void @abort() noreturn nounwind
99 if.end: ; preds = %lor.lhs.false
102 for.inc21: ; preds = %if.end
103 %indvar.next = add i64 %indvar, 1
106 for.end24: ; preds = %for.cond
110 define internal void @check_vect() nounwind uwtable noinline {
112 %a = alloca i32, align 4
113 %b = alloca i32, align 4
114 %c = alloca i32, align 4
115 %d = alloca i32, align 4
116 %call = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* @sig_ill_handler) nounwind
117 %call1 = call i32 @__get_cpuid(i32 1, i32* %a, i32* %b, i32* %c, i32* %d)
118 %tobool = icmp eq i32 %call1, 0
119 br i1 %tobool, label %if.then, label %lor.lhs.false
121 lor.lhs.false: ; preds = %entry
122 %tmp4 = load i32* %d, align 4
123 %and6 = and i32 %tmp4, 67108864
124 %cmp = icmp eq i32 %and6, 0
125 br i1 %cmp, label %if.then, label %if.end
127 if.then: ; preds = %entry, %lor.lhs.false
128 call void @exit(i32 0) noreturn nounwind
131 if.end: ; preds = %lor.lhs.false
132 %call7 = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* null) nounwind
136 declare void @abort() noreturn
138 declare void (i32)* @signal(i32, void (i32)*) nounwind
140 define internal void @sig_ill_handler(i32 %sig) nounwind uwtable {
142 call void @exit(i32 0) noreturn nounwind
145 return: ; No predecessors!
149 define internal i32 @__get_cpuid(i32 %__level, i32* %__eax, i32* %__ebx, i32* %__ecx, i32* %__edx) nounwind uwtable inlinehint {
151 %and = and i32 %__level, -2147483648
152 %call = call i32 @__get_cpuid_max(i32 %and, i32* null)
153 %cmp = icmp ult i32 %call, %__level
154 br i1 %cmp, label %if.then, label %if.end
156 if.then: ; preds = %entry
159 if.end: ; preds = %entry
160 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__level) nounwind, !srcloc !0
161 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
162 %asmresult8 = extractvalue { i32, i32, i32, i32 } %tmp, 1
163 %asmresult9 = extractvalue { i32, i32, i32, i32 } %tmp, 2
164 %asmresult10 = extractvalue { i32, i32, i32, i32 } %tmp, 3
165 store i32 %asmresult, i32* %__eax, align 4
166 store i32 %asmresult8, i32* %__ebx, align 4
167 store i32 %asmresult9, i32* %__ecx, align 4
168 store i32 %asmresult10, i32* %__edx, align 4
171 return: ; preds = %if.end, %if.then
172 %retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.end ]
176 declare void @exit(i32) noreturn
178 define internal i32 @__get_cpuid_max(i32 %__ext, i32* %__sig) nounwind uwtable inlinehint {
180 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__ext) nounwind, !srcloc !1
181 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
182 %tobool = icmp eq i32* %__sig, null
183 br i1 %tobool, label %if.end, label %if.then
185 if.then: ; preds = %entry
186 %asmresult1 = extractvalue { i32, i32, i32, i32 } %tmp, 1
187 store i32 %asmresult1, i32* %__sig, align 4
190 if.end: ; preds = %entry, %if.then
194 !0 = metadata !{i32 -2147343521, i32 -2147343513}
195 !1 = metadata !{i32 -2147343644, i32 -2147343636}