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-tree-dom-vect-bug.c
4 ; opt -correlated-propagation -mem2reg -instcombine -loop-simplify -indvars -instnamer no-tree-dom-vect-bug.s > no-tree-dom-vect-bug.ll
6 ; ModuleID = 'no-tree-dom-vect-bug.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 @stack_vars_sorted = common global [32 x i64] zeroinitializer, align 16
12 define i32 @main1(i64 %n) nounwind uwtable noinline {
14 %tmp = icmp sgt i64 %n, 0
15 %smax = select i1 %tmp, i64 %n, i64 0
18 for.cond: ; preds = %for.inc, %entry
19 %tmp1 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
20 %arrayidx = getelementptr [32 x i64]* @stack_vars_sorted, i64 0, i64 %tmp1
21 %exitcond = icmp ne i64 %tmp1, %smax
22 br i1 %exitcond, label %for.body, label %for.end
24 for.body: ; preds = %for.cond
25 store i64 %tmp1, i64* %arrayidx, align 8
28 for.inc: ; preds = %for.body
29 %inc = add nsw i64 %tmp1, 1
32 for.end: ; preds = %for.cond
36 define i32 @main() nounwind uwtable {
38 call void @check_vect()
39 %call = call i32 @main1(i64 32)
42 for.cond: ; preds = %for.inc, %entry
43 %tmp = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
44 %arrayidx = getelementptr [32 x i64]* @stack_vars_sorted, i64 0, i64 %tmp
45 %cmp = icmp slt i64 %tmp, 32
46 br i1 %cmp, label %for.body, label %for.end
48 for.body: ; preds = %for.cond
49 %tmp2 = load i64* %arrayidx, align 8
50 %cmp4 = icmp eq i64 %tmp2, %tmp
51 br i1 %cmp4, label %if.end, label %if.then
53 if.then: ; preds = %for.body
54 call void @abort() noreturn nounwind
57 if.end: ; preds = %for.body
60 for.inc: ; preds = %if.end
61 %inc = add nsw i64 %tmp, 1
64 for.end: ; preds = %for.cond
68 define internal void @check_vect() nounwind uwtable noinline {
70 %a = alloca i32, align 4
71 %b = alloca i32, align 4
72 %c = alloca i32, align 4
73 %d = alloca i32, align 4
74 %call = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* @sig_ill_handler) nounwind
75 %call1 = call i32 @__get_cpuid(i32 1, i32* %a, i32* %b, i32* %c, i32* %d)
76 %tobool = icmp eq i32 %call1, 0
77 br i1 %tobool, label %if.then, label %lor.lhs.false
79 lor.lhs.false: ; preds = %entry
80 %tmp4 = load i32* %d, align 4
81 %and6 = and i32 %tmp4, 67108864
82 %cmp = icmp eq i32 %and6, 0
83 br i1 %cmp, label %if.then, label %if.end
85 if.then: ; preds = %entry, %lor.lhs.false
86 call void @exit(i32 0) noreturn nounwind
89 if.end: ; preds = %lor.lhs.false
90 %call7 = call void (i32)* (i32, void (i32)*)* @signal(i32 4, void (i32)* null) nounwind
94 declare void @abort() noreturn
96 declare void (i32)* @signal(i32, void (i32)*) nounwind
98 define internal void @sig_ill_handler(i32 %sig) nounwind uwtable {
100 call void @exit(i32 0) noreturn nounwind
103 return: ; No predecessors!
107 define internal i32 @__get_cpuid(i32 %__level, i32* %__eax, i32* %__ebx, i32* %__ecx, i32* %__edx) nounwind uwtable inlinehint {
109 %and = and i32 %__level, -2147483648
110 %call = call i32 @__get_cpuid_max(i32 %and, i32* null)
111 %cmp = icmp ult i32 %call, %__level
112 br i1 %cmp, label %if.then, label %if.end
114 if.then: ; preds = %entry
117 if.end: ; preds = %entry
118 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__level) nounwind, !srcloc !0
119 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
120 %asmresult8 = extractvalue { i32, i32, i32, i32 } %tmp, 1
121 %asmresult9 = extractvalue { i32, i32, i32, i32 } %tmp, 2
122 %asmresult10 = extractvalue { i32, i32, i32, i32 } %tmp, 3
123 store i32 %asmresult, i32* %__eax, align 4
124 store i32 %asmresult8, i32* %__ebx, align 4
125 store i32 %asmresult9, i32* %__ecx, align 4
126 store i32 %asmresult10, i32* %__edx, align 4
129 return: ; preds = %if.end, %if.then
130 %retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.end ]
134 declare void @exit(i32) noreturn
136 define internal i32 @__get_cpuid_max(i32 %__ext, i32* %__sig) nounwind uwtable inlinehint {
138 %tmp = call { i32, i32, i32, i32 } asm "cpuid\0A\09", "={ax},={bx},={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %__ext) nounwind, !srcloc !1
139 %asmresult = extractvalue { i32, i32, i32, i32 } %tmp, 0
140 %tobool = icmp eq i32* %__sig, null
141 br i1 %tobool, label %if.end, label %if.then
143 if.then: ; preds = %entry
144 %asmresult1 = extractvalue { i32, i32, i32, i32 } %tmp, 1
145 store i32 %asmresult1, i32* %__sig, align 4
148 if.end: ; preds = %entry, %if.then
152 !0 = metadata !{i32 -2147343873, i32 -2147343865}
153 !1 = metadata !{i32 -2147343996, i32 -2147343988}