1 ; RUN: llvm-as < %s | opt -indvars | llvm-dis | not grep sext
3 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"
5 define i64 @test(i64* nocapture %first, i32 %count) nounwind readonly {
7 %t0 = icmp sgt i32 %count, 0 ; <i1> [#uses=1]
8 br i1 %t0, label %bb.nph, label %bb2
10 bb.nph: ; preds = %entry
13 bb: ; preds = %bb1, %bb.nph
14 %result.02 = phi i64 [ %t5, %bb1 ], [ 0, %bb.nph ] ; <i64> [#uses=1]
15 %n.01 = phi i32 [ %t6, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2]
16 %t1 = sext i32 %n.01 to i64 ; <i64> [#uses=1]
17 %t2 = getelementptr i64* %first, i64 %t1 ; <i64*> [#uses=1]
18 %t3 = load i64* %t2, align 8 ; <i64> [#uses=1]
19 %t4 = lshr i64 %t3, 4 ; <i64> [#uses=1]
20 %t5 = add i64 %t4, %result.02 ; <i64> [#uses=2]
21 %t6 = add i32 %n.01, 1 ; <i32> [#uses=2]
25 %t7 = icmp slt i32 %t6, %count ; <i1> [#uses=1]
26 br i1 %t7, label %bb, label %bb1.bb2_crit_edge
28 bb1.bb2_crit_edge: ; preds = %bb1
29 %.lcssa = phi i64 [ %t5, %bb1 ] ; <i64> [#uses=1]
32 bb2: ; preds = %bb1.bb2_crit_edge, %entry
33 %result.0.lcssa = phi i64 [ %.lcssa, %bb1.bb2_crit_edge ], [ 0, %entry ] ; <i64> [#uses=1]
34 ret i64 %result.0.lcssa
37 define void @foo(i16 signext %N, i32* nocapture %P) nounwind {
39 %t0 = icmp sgt i16 %N, 0 ; <i1> [#uses=1]
40 br i1 %t0, label %bb.nph, label %return
42 bb.nph: ; preds = %entry
45 bb: ; preds = %bb1, %bb.nph
46 %i.01 = phi i16 [ %t3, %bb1 ], [ 0, %bb.nph ] ; <i16> [#uses=2]
47 %t1 = sext i16 %i.01 to i64 ; <i64> [#uses=1]
48 %t2 = getelementptr i32* %P, i64 %t1 ; <i32*> [#uses=1]
49 store i32 123, i32* %t2, align 4
50 %t3 = add i16 %i.01, 1 ; <i16> [#uses=2]
54 %t4 = icmp slt i16 %t3, %N ; <i1> [#uses=1]
55 br i1 %t4, label %bb, label %bb1.return_crit_edge
57 bb1.return_crit_edge: ; preds = %bb1
60 return: ; preds = %bb1.return_crit_edge, %entry
64 ; Test cases from PR1301:
66 define void @kinds__srangezero([21 x i32]* nocapture %a) nounwind {
70 bb: ; preds = %bb, %bb.thread
71 %i.0.reg2mem.0 = phi i8 [ -10, %bb.thread ], [ %tmp7, %bb ] ; <i8> [#uses=2]
72 %tmp12 = sext i8 %i.0.reg2mem.0 to i32 ; <i32> [#uses=1]
73 %tmp4 = add i32 %tmp12, 10 ; <i32> [#uses=1]
74 %tmp5 = getelementptr [21 x i32]* %a, i32 0, i32 %tmp4 ; <i32*> [#uses=1]
75 store i32 0, i32* %tmp5
76 %tmp7 = add i8 %i.0.reg2mem.0, 1 ; <i8> [#uses=2]
77 %0 = icmp sgt i8 %tmp7, 10 ; <i1> [#uses=1]
78 br i1 %0, label %return, label %bb
84 define void @kinds__urangezero([21 x i32]* nocapture %a) nounwind {
88 bb: ; preds = %bb, %bb.thread
89 %i.0.reg2mem.0 = phi i8 [ 10, %bb.thread ], [ %tmp7, %bb ] ; <i8> [#uses=2]
90 %tmp12 = sext i8 %i.0.reg2mem.0 to i32 ; <i32> [#uses=1]
91 %tmp4 = add i32 %tmp12, -10 ; <i32> [#uses=1]
92 %tmp5 = getelementptr [21 x i32]* %a, i32 0, i32 %tmp4 ; <i32*> [#uses=1]
93 store i32 0, i32* %tmp5
94 %tmp7 = add i8 %i.0.reg2mem.0, 1 ; <i8> [#uses=2]
95 %0 = icmp sgt i8 %tmp7, 30 ; <i1> [#uses=1]
96 br i1 %0, label %return, label %bb