blob: 956999b7cde0640fc3bf5418607cb4164acd118a [file] [log] [blame]
Sanjoy Dasac5bf592016-08-03 20:53:23 +00001; RUN: opt < %s -indvars -S | FileCheck %s
Mehdi Amini46a43552015-03-04 18:43:29 +00002
3; Provide legal integer types.
4target datalayout = "n8:16:32:64"
5
Sanjoy Dasac5bf592016-08-03 20:53:23 +00006; CHECK-NOT: sext
Dan Gohmaneb6be652009-02-12 22:19:27 +00007
8define i64 @test(i64* nocapture %first, i32 %count) nounwind readonly {
9entry:
10 %t0 = icmp sgt i32 %count, 0 ; <i1> [#uses=1]
11 br i1 %t0, label %bb.nph, label %bb2
12
13bb.nph: ; preds = %entry
14 br label %bb
15
16bb: ; preds = %bb1, %bb.nph
17 %result.02 = phi i64 [ %t5, %bb1 ], [ 0, %bb.nph ] ; <i64> [#uses=1]
18 %n.01 = phi i32 [ %t6, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2]
19 %t1 = sext i32 %n.01 to i64 ; <i64> [#uses=1]
David Blaikie79e6c742015-02-27 19:29:02 +000020 %t2 = getelementptr i64, i64* %first, i64 %t1 ; <i64*> [#uses=1]
David Blaikiea79ac142015-02-27 21:17:42 +000021 %t3 = load i64, i64* %t2, align 8 ; <i64> [#uses=1]
Dan Gohmaneb6be652009-02-12 22:19:27 +000022 %t4 = lshr i64 %t3, 4 ; <i64> [#uses=1]
23 %t5 = add i64 %t4, %result.02 ; <i64> [#uses=2]
24 %t6 = add i32 %n.01, 1 ; <i32> [#uses=2]
25 br label %bb1
26
27bb1: ; preds = %bb
28 %t7 = icmp slt i32 %t6, %count ; <i1> [#uses=1]
29 br i1 %t7, label %bb, label %bb1.bb2_crit_edge
30
31bb1.bb2_crit_edge: ; preds = %bb1
32 %.lcssa = phi i64 [ %t5, %bb1 ] ; <i64> [#uses=1]
33 br label %bb2
34
35bb2: ; preds = %bb1.bb2_crit_edge, %entry
36 %result.0.lcssa = phi i64 [ %.lcssa, %bb1.bb2_crit_edge ], [ 0, %entry ] ; <i64> [#uses=1]
37 ret i64 %result.0.lcssa
38}
39
40define void @foo(i16 signext %N, i32* nocapture %P) nounwind {
41entry:
42 %t0 = icmp sgt i16 %N, 0 ; <i1> [#uses=1]
43 br i1 %t0, label %bb.nph, label %return
44
45bb.nph: ; preds = %entry
46 br label %bb
47
48bb: ; preds = %bb1, %bb.nph
49 %i.01 = phi i16 [ %t3, %bb1 ], [ 0, %bb.nph ] ; <i16> [#uses=2]
50 %t1 = sext i16 %i.01 to i64 ; <i64> [#uses=1]
David Blaikie79e6c742015-02-27 19:29:02 +000051 %t2 = getelementptr i32, i32* %P, i64 %t1 ; <i32*> [#uses=1]
Dan Gohmaneb6be652009-02-12 22:19:27 +000052 store i32 123, i32* %t2, align 4
53 %t3 = add i16 %i.01, 1 ; <i16> [#uses=2]
54 br label %bb1
55
56bb1: ; preds = %bb
57 %t4 = icmp slt i16 %t3, %N ; <i1> [#uses=1]
58 br i1 %t4, label %bb, label %bb1.return_crit_edge
59
60bb1.return_crit_edge: ; preds = %bb1
61 br label %return
62
63return: ; preds = %bb1.return_crit_edge, %entry
64 ret void
65}
Dan Gohman671f2c02009-02-14 02:31:09 +000066
67; Test cases from PR1301:
68
69define void @kinds__srangezero([21 x i32]* nocapture %a) nounwind {
70bb.thread:
71 br label %bb
72
73bb: ; preds = %bb, %bb.thread
74 %i.0.reg2mem.0 = phi i8 [ -10, %bb.thread ], [ %tmp7, %bb ] ; <i8> [#uses=2]
75 %tmp12 = sext i8 %i.0.reg2mem.0 to i32 ; <i32> [#uses=1]
76 %tmp4 = add i32 %tmp12, 10 ; <i32> [#uses=1]
David Blaikie79e6c742015-02-27 19:29:02 +000077 %tmp5 = getelementptr [21 x i32], [21 x i32]* %a, i32 0, i32 %tmp4 ; <i32*> [#uses=1]
Dan Gohman671f2c02009-02-14 02:31:09 +000078 store i32 0, i32* %tmp5
79 %tmp7 = add i8 %i.0.reg2mem.0, 1 ; <i8> [#uses=2]
80 %0 = icmp sgt i8 %tmp7, 10 ; <i1> [#uses=1]
81 br i1 %0, label %return, label %bb
82
83return: ; preds = %bb
84 ret void
85}
86
87define void @kinds__urangezero([21 x i32]* nocapture %a) nounwind {
88bb.thread:
89 br label %bb
90
91bb: ; preds = %bb, %bb.thread
92 %i.0.reg2mem.0 = phi i8 [ 10, %bb.thread ], [ %tmp7, %bb ] ; <i8> [#uses=2]
93 %tmp12 = sext i8 %i.0.reg2mem.0 to i32 ; <i32> [#uses=1]
94 %tmp4 = add i32 %tmp12, -10 ; <i32> [#uses=1]
David Blaikie79e6c742015-02-27 19:29:02 +000095 %tmp5 = getelementptr [21 x i32], [21 x i32]* %a, i32 0, i32 %tmp4 ; <i32*> [#uses=1]
Dan Gohman671f2c02009-02-14 02:31:09 +000096 store i32 0, i32* %tmp5
97 %tmp7 = add i8 %i.0.reg2mem.0, 1 ; <i8> [#uses=2]
98 %0 = icmp sgt i8 %tmp7, 30 ; <i1> [#uses=1]
99 br i1 %0, label %return, label %bb
100
101return: ; preds = %bb
102 ret void
103}