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 vect-widen-mult-u16.c
4 ; opt -correlated-propagation -mem2reg -instcombine -loop-simplify -indvars -instnamer vect-widen-mult-u16.s > vect-widen-mult-u16.ll
6 ; ModuleID = 'vect-widen-mult-u16.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 @X = common global [64 x i16] zeroinitializer, align 16
11 @Y = common global [64 x i16] zeroinitializer, align 16
12 @result = common global [64 x i32] zeroinitializer, align 16
14 define i32 @foo1(i32 %len) nounwind uwtable noinline {
16 %tmp = icmp sgt i32 %len, 0
17 %smax = select i1 %tmp, i32 %len, i32 0
18 %tmp1 = zext i32 %smax to i64
21 for.cond: ; preds = %for.inc, %entry
22 %indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %entry ]
23 %arrayidx11 = getelementptr [64 x i32]* @result, i64 0, i64 %indvar
24 %arrayidx6 = getelementptr [64 x i16]* @Y, i64 0, i64 %indvar
25 %arrayidx = getelementptr [64 x i16]* @X, i64 0, i64 %indvar
26 %exitcond = icmp ne i64 %indvar, %tmp1
27 br i1 %exitcond, label %for.body, label %for.end
29 for.body: ; preds = %for.cond
30 %tmp3 = load i16* %arrayidx, align 2
31 %conv = zext i16 %tmp3 to i32
32 %tmp7 = load i16* %arrayidx6, align 2
33 %conv8 = zext i16 %tmp7 to i32
34 %mul = mul nsw i32 %conv, %conv8
35 store i32 %mul, i32* %arrayidx11, align 4
38 for.inc: ; preds = %for.body
39 %indvar.next = add i64 %indvar, 1
42 for.end: ; preds = %for.cond
46 define i32 @main() nounwind uwtable {
48 call void @check_vect()
51 for.cond: ; preds = %for.inc, %entry
52 %indvar1 = phi i64 [ %indvar.next2, %for.inc ], [ 0, %entry ]
53 %arrayidx7 = getelementptr [64 x i16]* @Y, i64 0, i64 %indvar1
54 %tmp = mul i64 %indvar1, -1
55 %tmp3 = add i64 %tmp, 64
56 %conv4 = trunc i64 %tmp3 to i16
57 %arrayidx = getelementptr [64 x i16]* @X, i64 0, i64 %indvar1
58 %conv = trunc i64 %indvar1 to i16
59 %exitcond = icmp ne i64 %indvar1, 64
60 br i1 %exitcond, label %for.body, label %for.end
62 for.body: ; preds = %for.cond
63 store i16 %conv, i16* %arrayidx, align 2
64 store i16 %conv4, i16* %arrayidx7, align 2
65 call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"() nounwind, !srcloc !0
68 for.inc: ; preds = %for.body
69 %indvar.next2 = add i64 %indvar1, 1
72 for.end: ; preds = %for.cond
73 %call = call i32 @foo1(i32 64)
76 for.cond9: ; preds = %for.inc30, %for.end
77 %indvar = phi i64 [ %indvar.next, %for.inc30 ], [ 0, %for.end ]
78 %arrayidx25 = getelementptr [64 x i16]* @Y, i64 0, i64 %indvar
79 %arrayidx20 = getelementptr [64 x i16]* @X, i64 0, i64 %indvar
80 %arrayidx16 = getelementptr [64 x i32]* @result, i64 0, i64 %indvar
81 %i.1 = trunc i64 %indvar to i32
82 %cmp11 = icmp slt i32 %i.1, 64
83 br i1 %cmp11, label %for.body13, label %for.end33
85 for.body13: ; preds = %for.cond9
86 %tmp17 = load i32* %arrayidx16, align 4
87 %tmp21 = load i16* %arrayidx20, align 2
88 %conv22 = zext i16 %tmp21 to i32
89 %tmp26 = load i16* %arrayidx25, align 2
90 %conv27 = zext i16 %tmp26 to i32
91 %mul = mul nsw i32 %conv22, %conv27
92 %cmp28 = icmp eq i32 %tmp17, %mul
93 br i1 %cmp28, label %if.end, label %if.then
95 if.then: ; preds = %for.body13
96 call void @abort() noreturn nounwind
99 if.end: ; preds = %for.body13
102 for.inc30: ; preds = %if.end
103 %indvar.next = add i64 %indvar, 1
106 for.end33: ; preds = %for.cond9
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 !1
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 !2
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 590}
195 !1 = metadata !{i32 -2147343180, i32 -2147343172}
196 !2 = metadata !{i32 -2147343303, i32 -2147343295}