1 ; Test load-and-trap instructions (LLGFAT/LLGFTAT) 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=zEC12 | FileCheck %s 4 5 declare void @llvm.trap() 6 7 ; Check LLGFAT with no displacement. 8 define i64 @f1(i32 *%ptr) { 9 ; CHECK-LABEL: f1: 10 ; CHECK: llgfat %r2, 0(%r2) 11 ; CHECK: br %r14 12 entry: 13 %val = load i32, i32 *%ptr 14 %ext = zext i32 %val to i64 15 %cmp = icmp eq i64 %ext, 0 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 i64 %ext 24 } 25 26 ; Check the high end of the LLGFAT range. 27 define i64 @f2(i32 *%src) { 28 ; CHECK-LABEL: f2: 29 ; CHECK: llgfat %r2, 524284(%r2) 30 ; CHECK: br %r14 31 %ptr = getelementptr i32, i32 *%src, i64 131071 32 %val = load i32, i32 *%ptr 33 %ext = zext i32 %val to i64 34 %cmp = icmp eq i64 %ext, 0 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 %ext 43 } 44 45 ; Check the next word up, which needs separate address logic. 46 ; Other sequences besides this one would be OK. 47 define i64 @f3(i32 *%src) { 48 ; CHECK-LABEL: f3: 49 ; CHECK: agfi %r2, 524288 50 ; CHECK: llgfat %r2, 0(%r2) 51 ; CHECK: br %r14 52 %ptr = getelementptr i32, i32 *%src, i64 131072 53 %val = load i32, i32 *%ptr 54 %ext = zext i32 %val to i64 55 %cmp = icmp eq i64 %ext, 0 56 br i1 %cmp, label %if.then, label %if.end 57 58 if.then: ; preds = %entry 59 tail call void @llvm.trap() 60 unreachable 61 62 if.end: ; preds = %entry 63 ret i64 %ext 64 } 65 66 ; Check that LLGFAT allows an index. 67 define i64 @f4(i64 %src, i64 %index) { 68 ; CHECK-LABEL: f4: 69 ; CHECK: llgfat %r2, 524287(%r3,%r2) 70 ; CHECK: br %r14 71 %add1 = add i64 %src, %index 72 %add2 = add i64 %add1, 524287 73 %ptr = inttoptr i64 %add2 to i32 * 74 %val = load i32, i32 *%ptr 75 %ext = zext i32 %val to i64 76 %cmp = icmp eq i64 %ext, 0 77 br i1 %cmp, label %if.then, label %if.end 78 79 if.then: ; preds = %entry 80 tail call void @llvm.trap() 81 unreachable 82 83 if.end: ; preds = %entry 84 ret i64 %ext 85 } 86 87 ; Check LLGTAT with no displacement. 88 define i64 @f5(i32 *%ptr) { 89 ; CHECK-LABEL: f5: 90 ; CHECK: llgtat %r2, 0(%r2) 91 ; CHECK: br %r14 92 entry: 93 %val = load i32, i32 *%ptr 94 %ext = zext i32 %val to i64 95 %and = and i64 %ext, 2147483647 96 %cmp = icmp eq i64 %and, 0 97 br i1 %cmp, label %if.then, label %if.end 98 99 if.then: ; preds = %entry 100 tail call void @llvm.trap() 101 unreachable 102 103 if.end: ; preds = %entry 104 ret i64 %and 105 } 106 107 ; Check the high end of the LLGTAT range. 108 define i64 @f6(i32 *%src) { 109 ; CHECK-LABEL: f6: 110 ; CHECK: llgtat %r2, 524284(%r2) 111 ; CHECK: br %r14 112 %ptr = getelementptr i32, i32 *%src, i64 131071 113 %val = load i32, i32 *%ptr 114 %ext = zext i32 %val to i64 115 %and = and i64 %ext, 2147483647 116 %cmp = icmp eq i64 %and, 0 117 br i1 %cmp, label %if.then, label %if.end 118 119 if.then: ; preds = %entry 120 tail call void @llvm.trap() 121 unreachable 122 123 if.end: ; preds = %entry 124 ret i64 %and 125 } 126 127 ; Check the next word up, which needs separate address logic. 128 ; Other sequences besides this one would be OK. 129 define i64 @f7(i32 *%src) { 130 ; CHECK-LABEL: f7: 131 ; CHECK: agfi %r2, 524288 132 ; CHECK: llgtat %r2, 0(%r2) 133 ; CHECK: br %r14 134 %ptr = getelementptr i32, i32 *%src, i64 131072 135 %val = load i32, i32 *%ptr 136 %ext = zext i32 %val to i64 137 %and = and i64 %ext, 2147483647 138 %cmp = icmp eq i64 %and, 0 139 br i1 %cmp, label %if.then, label %if.end 140 141 if.then: ; preds = %entry 142 tail call void @llvm.trap() 143 unreachable 144 145 if.end: ; preds = %entry 146 ret i64 %and 147 } 148 149 ; Check that LLGTAT allows an index. 150 define i64 @f8(i64 %src, i64 %index) { 151 ; CHECK-LABEL: f8: 152 ; CHECK: llgtat %r2, 524287(%r3,%r2) 153 ; CHECK: br %r14 154 %add1 = add i64 %src, %index 155 %add2 = add i64 %add1, 524287 156 %ptr = inttoptr i64 %add2 to i32 * 157 %val = load i32, i32 *%ptr 158 %ext = zext i32 %val to i64 159 %and = and i64 %ext, 2147483647 160 %cmp = icmp eq i64 %and, 0 161 br i1 %cmp, label %if.then, label %if.end 162 163 if.then: ; preds = %entry 164 tail call void @llvm.trap() 165 unreachable 166 167 if.end: ; preds = %entry 168 ret i64 %and 169 } 170 171
