1 ; Test zE12 conditional traps 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=zEC12 | FileCheck %s 4 5 declare void @llvm.trap() 6 7 ; Check conditional compare logical and trap 8 define i32 @f1(i32 zeroext %a, i32 *%ptr) { 9 ; CHECK-LABEL: f1: 10 ; CHECK: clth %r2, 0(%r3) 11 ; CHECK: lhi %r2, 0 12 ; CHECK: br %r14 13 entry: 14 %b = load i32, i32 *%ptr 15 %cmp = icmp ugt i32 %a, %b 16 br i1 %cmp, label %if.then, label %if.end 17 18 if.then: ; preds = %entry 19 tail call void @llvm.trap() 20 unreachable 21 22 if.end: ; preds = %entry 23 ret i32 0 24 } 25 26 ; Check conditional compare logical grande and trap 27 define i64 @f2(i64 zeroext %a, i64 *%ptr) { 28 ; CHECK-LABEL: f2: 29 ; CHECK: clgtl %r2, 0(%r3) 30 ; CHECK: lghi %r2, 0 31 ; CHECK: br %r14 32 entry: 33 %b = load i64, i64 *%ptr 34 %cmp = icmp ult i64 %a, %b 35 br i1 %cmp, label %if.then, label %if.end 36 37 if.then: ; preds = %entry 38 tail call void @llvm.trap() 39 unreachable 40 41 if.end: ; preds = %entry 42 ret i64 0 43 } 44 45 ; Verify that we don't attempt to use the compare and trap 46 ; instruction with an index operand. 47 define i32 @f3(i32 zeroext %a, i32 *%base, i64 %offset) { 48 ; CHECK-LABEL: f3: 49 ; CHECK: cl %r2, 0(%r{{[0-5]}},%r3) 50 ; CHECK: lhi %r2, 0 51 ; CHECK-LABEL: .Ltmp0 52 ; CHECK: jh .Ltmp0+2 53 ; CHECK: br %r14 54 entry: 55 %ptr = getelementptr i32, i32 *%base, i64 %offset 56 %b = load i32, i32 *%ptr 57 %cmp = icmp ugt i32 %a, %b 58 br i1 %cmp, label %if.then, label %if.end 59 60 if.then: ; preds = %entry 61 tail call void @llvm.trap() 62 unreachable 63 64 if.end: ; preds = %entry 65 ret i32 0 66 } 67 68 ; Verify that we don't attempt to use the compare and trap grande 69 ; instruction with an index operand. 70 define i64 @f4(i64 %a, i64 *%base, i64 %offset) { 71 ; CHECK-LABEL: f4: 72 ; CHECK: clg %r2, 0(%r{{[0-5]}},%r3) 73 ; CHECK: lghi %r2, 0 74 ; CHECK-LABEL: .Ltmp1 75 ; CHECK: jh .Ltmp1+2 76 ; CHECK: br %r14 77 entry: 78 %ptr = getelementptr i64, i64 *%base, i64 %offset 79 %b = load i64, i64 *%ptr 80 %cmp = icmp ugt i64 %a, %b 81 br i1 %cmp, label %if.then, label %if.end 82 83 if.then: ; preds = %entry 84 tail call void @llvm.trap() 85 unreachable 86 87 if.end: ; preds = %entry 88 ret i64 0 89 } 90 91
