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 pr18536.c
4 ; opt -correlated-propagation -mem2reg -instcombine -loop-simplify -indvars -instnamer pr18536.s > pr18536.ll
6 ; ModuleID = 'pr18536.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 define i32 @main1(i16 signext %a, i16* %b) nounwind uwtable {
13 %tmp1 = icmp sgt i16 %tmp, 4
14 %smax = select i1 %tmp1, i16 %tmp, i16 4
15 %tmp2 = add i16 %smax, -1
16 %tmp3 = sub i16 %tmp2, %a
17 %tmp4 = zext i16 %tmp3 to i64
20 while.cond: ; preds = %while.body, %entry
21 %indvar = phi i64 [ %indvar.next, %while.body ], [ 0, %entry ]
22 %b.addr.0 = getelementptr i16* %b, i64 %indvar
23 %exitcond = icmp ne i64 %indvar, %tmp4
24 br i1 %exitcond, label %while.body, label %while.end
26 while.body: ; preds = %while.cond
27 store i16 2, i16* %b.addr.0, align 2
28 %indvar.next = add i64 %indvar, 1
31 while.end: ; preds = %while.cond
35 define i32 @main() nounwind uwtable {
37 %x = alloca [16 x i16], align 16
38 call void @check_vect()
39 %arraydecay = getelementptr inbounds [16 x i16]* %x, i64 0, i64 0
40 %call = call i32 @main1(i16 signext 0, i16* %arraydecay)
43 while.cond: ; preds = %if.end, %entry
44 %indvar = phi i64 [ %indvar.next, %if.end ], [ 0, %entry ]
45 %arrayidx = getelementptr [16 x i16]* %x, i64 0, i64 %indvar
46 %tmp = add i64 %indvar, 1
47 %i.0 = trunc i64 %tmp to i32
48 %cmp = icmp slt i32 %i.0, 4
49 br i1 %cmp, label %while.body, label %while.end
51 while.body: ; preds = %while.cond
52 %tmp2 = load i16* %arrayidx, align 2
53 %cmp3 = icmp eq i16 %tmp2, 2
54 br i1 %cmp3, label %if.end, label %if.then
56 if.then: ; preds = %while.body
57 call void @abort() noreturn nounwind
60 if.end: ; preds = %while.body
61 %indvar.next = add i64 %indvar, 1
64 while.end: ; preds = %while.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 -2147343826, i32 -2147343818}
153 !1 = metadata !{i32 -2147343949, i32 -2147343941}