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120
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1 ; Test zE12 conditional traps
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2 ;
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3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=zEC12 | FileCheck %s
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4
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5 declare void @llvm.trap()
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6
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7 ; Check conditional compare logical and trap
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8 define i32 @f1(i32 zeroext %a, i32 *%ptr) {
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9 ; CHECK-LABEL: f1:
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10 ; CHECK: clth %r2, 0(%r3)
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11 ; CHECK: lhi %r2, 0
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12 ; CHECK: br %r14
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13 entry:
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14 %b = load i32, i32 *%ptr
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15 %cmp = icmp ugt i32 %a, %b
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16 br i1 %cmp, label %if.then, label %if.end
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17
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18 if.then: ; preds = %entry
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19 tail call void @llvm.trap()
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20 unreachable
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21
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22 if.end: ; preds = %entry
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23 ret i32 0
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24 }
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25
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26 ; Check conditional compare logical grande and trap
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27 define i64 @f2(i64 zeroext %a, i64 *%ptr) {
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28 ; CHECK-LABEL: f2:
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29 ; CHECK: clgtl %r2, 0(%r3)
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30 ; CHECK: lghi %r2, 0
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31 ; CHECK: br %r14
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32 entry:
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33 %b = load i64, i64 *%ptr
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34 %cmp = icmp ult i64 %a, %b
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35 br i1 %cmp, label %if.then, label %if.end
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36
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37 if.then: ; preds = %entry
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38 tail call void @llvm.trap()
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39 unreachable
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40
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41 if.end: ; preds = %entry
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42 ret i64 0
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43 }
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44
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45 ; Verify that we don't attempt to use the compare and trap
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46 ; instruction with an index operand.
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47 define i32 @f3(i32 zeroext %a, i32 *%base, i64 %offset) {
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48 ; CHECK-LABEL: f3:
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49 ; CHECK: cl %r2, 0(%r{{[0-5]}},%r3)
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121
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50 ; CHECK: lhi %r2, 0
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120
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51 ; CHECK-LABEL: .Ltmp0
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52 ; CHECK: jh .Ltmp0+2
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53 ; CHECK: br %r14
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54 entry:
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55 %ptr = getelementptr i32, i32 *%base, i64 %offset
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56 %b = load i32, i32 *%ptr
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57 %cmp = icmp ugt i32 %a, %b
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58 br i1 %cmp, label %if.then, label %if.end
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59
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60 if.then: ; preds = %entry
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61 tail call void @llvm.trap()
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62 unreachable
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63
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64 if.end: ; preds = %entry
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65 ret i32 0
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66 }
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67
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68 ; Verify that we don't attempt to use the compare and trap grande
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69 ; instruction with an index operand.
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70 define i64 @f4(i64 %a, i64 *%base, i64 %offset) {
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71 ; CHECK-LABEL: f4:
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72 ; CHECK: clg %r2, 0(%r{{[0-5]}},%r3)
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121
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73 ; CHECK: lghi %r2, 0
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120
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74 ; CHECK-LABEL: .Ltmp1
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75 ; CHECK: jh .Ltmp1+2
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76 ; CHECK: br %r14
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77 entry:
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78 %ptr = getelementptr i64, i64 *%base, i64 %offset
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79 %b = load i64, i64 *%ptr
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80 %cmp = icmp ugt i64 %a, %b
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81 br i1 %cmp, label %if.then, label %if.end
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82
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83 if.then: ; preds = %entry
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84 tail call void @llvm.trap()
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85 unreachable
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86
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87 if.end: ; preds = %entry
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88 ret i64 0
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89 }
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90
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