| Jakub Staszak | 9da9934 | 2011-07-06 18:22:43 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s |
| 2 | |
| 3 | define i32 @test1(i32 %x) nounwind uwtable ssp { |
| 4 | entry: |
| 5 | %retval = alloca i32, align 4 |
| 6 | %x.addr = alloca i32, align 4 |
| 7 | store i32 %x, i32* %x.addr, align 4 |
| 8 | %tmp = load i32* %x.addr, align 4 |
| 9 | %cmp = icmp sgt i32 %tmp, 1 |
| 10 | %conv = zext i1 %cmp to i32 |
| 11 | %conv1 = sext i32 %conv to i64 |
| 12 | %expval = call i64 @llvm.expect.i64(i64 %conv1, i64 1) |
| 13 | %tobool = icmp ne i64 %expval, 0 |
| 14 | br i1 %tobool, label %if.then, label %if.end |
| 15 | |
| 16 | if.then: ; preds = %entry |
| 17 | %call = call i32 (...)* @f() |
| 18 | store i32 %call, i32* %retval |
| 19 | br label %return |
| 20 | |
| 21 | if.end: ; preds = %entry |
| 22 | store i32 1, i32* %retval |
| 23 | br label %return |
| 24 | |
| 25 | return: ; preds = %if.end, %if.then |
| 26 | %0 = load i32* %retval |
| 27 | ret i32 %0 |
| 28 | } |
| 29 | |
| 30 | declare i64 @llvm.expect.i64(i64, i64) nounwind readnone |
| 31 | |
| 32 | declare i32 @f(...) |
| 33 | |
| 34 | define i32 @test2(i32 %x) nounwind uwtable ssp { |
| 35 | entry: |
| 36 | %retval = alloca i32, align 4 |
| 37 | %x.addr = alloca i32, align 4 |
| 38 | store i32 %x, i32* %x.addr, align 4 |
| 39 | %tmp = load i32* %x.addr, align 4 |
| 40 | %conv = sext i32 %tmp to i64 |
| 41 | %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) |
| 42 | %tobool = icmp ne i64 %expval, 0 |
| 43 | br i1 %tobool, label %if.then, label %if.end |
| 44 | |
| 45 | if.then: ; preds = %entry |
| 46 | %call = call i32 (...)* @f() |
| 47 | store i32 %call, i32* %retval |
| 48 | br label %return |
| 49 | |
| 50 | if.end: ; preds = %entry |
| 51 | store i32 1, i32* %retval |
| 52 | br label %return |
| 53 | |
| 54 | return: ; preds = %if.end, %if.then |
| 55 | %0 = load i32* %retval |
| 56 | ret i32 %0 |
| 57 | } |
| 58 | |
| 59 | define i32 @test3(i32 %x) nounwind uwtable ssp { |
| 60 | entry: |
| 61 | %retval = alloca i32, align 4 |
| 62 | %x.addr = alloca i32, align 4 |
| 63 | store i32 %x, i32* %x.addr, align 4 |
| 64 | %tmp = load i32* %x.addr, align 4 |
| 65 | %tobool = icmp ne i32 %tmp, 0 |
| 66 | %lnot = xor i1 %tobool, true |
| 67 | %lnot.ext = zext i1 %lnot to i32 |
| 68 | %conv = sext i32 %lnot.ext to i64 |
| 69 | %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) |
| 70 | %tobool1 = icmp ne i64 %expval, 0 |
| 71 | br i1 %tobool1, label %if.then, label %if.end |
| 72 | |
| 73 | if.then: ; preds = %entry |
| 74 | %call = call i32 (...)* @f() |
| 75 | store i32 %call, i32* %retval |
| 76 | br label %return |
| 77 | |
| 78 | if.end: ; preds = %entry |
| 79 | store i32 1, i32* %retval |
| 80 | br label %return |
| 81 | |
| 82 | return: ; preds = %if.end, %if.then |
| 83 | %0 = load i32* %retval |
| 84 | ret i32 %0 |
| 85 | } |
| 86 | |
| 87 | define i32 @test4(i32 %x) nounwind uwtable ssp { |
| 88 | entry: |
| 89 | %retval = alloca i32, align 4 |
| 90 | %x.addr = alloca i32, align 4 |
| 91 | store i32 %x, i32* %x.addr, align 4 |
| 92 | %tmp = load i32* %x.addr, align 4 |
| 93 | %tobool = icmp ne i32 %tmp, 0 |
| 94 | %lnot = xor i1 %tobool, true |
| 95 | %lnot1 = xor i1 %lnot, true |
| 96 | %lnot.ext = zext i1 %lnot1 to i32 |
| 97 | %conv = sext i32 %lnot.ext to i64 |
| 98 | %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) |
| 99 | %tobool2 = icmp ne i64 %expval, 0 |
| 100 | br i1 %tobool2, label %if.then, label %if.end |
| 101 | |
| 102 | if.then: ; preds = %entry |
| 103 | %call = call i32 (...)* @f() |
| 104 | store i32 %call, i32* %retval |
| 105 | br label %return |
| 106 | |
| 107 | if.end: ; preds = %entry |
| 108 | store i32 1, i32* %retval |
| 109 | br label %return |
| 110 | |
| 111 | return: ; preds = %if.end, %if.then |
| 112 | %0 = load i32* %retval |
| 113 | ret i32 %0 |
| 114 | } |
| 115 | |
| 116 | define i32 @test5(i32 %x) nounwind uwtable ssp { |
| 117 | entry: |
| 118 | %retval = alloca i32, align 4 |
| 119 | %x.addr = alloca i32, align 4 |
| 120 | store i32 %x, i32* %x.addr, align 4 |
| 121 | %tmp = load i32* %x.addr, align 4 |
| 122 | %cmp = icmp slt i32 %tmp, 0 |
| 123 | %conv = zext i1 %cmp to i32 |
| 124 | %conv1 = sext i32 %conv to i64 |
| 125 | %expval = call i64 @llvm.expect.i64(i64 %conv1, i64 0) |
| 126 | %tobool = icmp ne i64 %expval, 0 |
| 127 | br i1 %tobool, label %if.then, label %if.end |
| 128 | |
| 129 | if.then: ; preds = %entry |
| 130 | %call = call i32 (...)* @f() |
| 131 | store i32 %call, i32* %retval |
| 132 | br label %return |
| 133 | |
| 134 | if.end: ; preds = %entry |
| 135 | store i32 1, i32* %retval |
| 136 | br label %return |
| 137 | |
| 138 | return: ; preds = %if.end, %if.then |
| 139 | %0 = load i32* %retval |
| 140 | ret i32 %0 |
| 141 | } |
| 142 | |
| 143 | define i32 @test6(i32 %x) nounwind uwtable ssp { |
| 144 | entry: |
| 145 | %retval = alloca i32, align 4 |
| 146 | %x.addr = alloca i32, align 4 |
| 147 | store i32 %x, i32* %x.addr, align 4 |
| 148 | %tmp = load i32* %x.addr, align 4 |
| 149 | %conv = sext i32 %tmp to i64 |
| 150 | %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) |
| 151 | switch i64 %expval, label %sw.epilog [ |
| 152 | i64 1, label %sw.bb |
| 153 | i64 2, label %sw.bb |
| 154 | ] |
| 155 | |
| 156 | sw.bb: ; preds = %entry, %entry |
| 157 | store i32 0, i32* %retval |
| 158 | br label %return |
| 159 | |
| 160 | sw.epilog: ; preds = %entry |
| 161 | store i32 1, i32* %retval |
| 162 | br label %return |
| 163 | |
| 164 | return: ; preds = %sw.epilog, %sw.bb |
| 165 | %0 = load i32* %retval |
| 166 | ret i32 %0 |
| 167 | } |
| 168 | |
| 169 | define i32 @test7(i32 %x) nounwind uwtable ssp { |
| 170 | entry: |
| 171 | %retval = alloca i32, align 4 |
| 172 | %x.addr = alloca i32, align 4 |
| 173 | store i32 %x, i32* %x.addr, align 4 |
| 174 | %tmp = load i32* %x.addr, align 4 |
| 175 | %conv = sext i32 %tmp to i64 |
| 176 | %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) |
| 177 | switch i64 %expval, label %sw.epilog [ |
| 178 | i64 2, label %sw.bb |
| 179 | i64 3, label %sw.bb |
| 180 | ] |
| 181 | |
| 182 | sw.bb: ; preds = %entry, %entry |
| 183 | %tmp1 = load i32* %x.addr, align 4 |
| 184 | store i32 %tmp1, i32* %retval |
| 185 | br label %return |
| 186 | |
| 187 | sw.epilog: ; preds = %entry |
| 188 | store i32 0, i32* %retval |
| 189 | br label %return |
| 190 | |
| 191 | return: ; preds = %sw.epilog, %sw.bb |
| 192 | %0 = load i32* %retval |
| 193 | ret i32 %0 |
| 194 | } |
| 195 | |
| 196 | define i32 @test8(i32 %x) nounwind uwtable ssp { |
| 197 | entry: |
| 198 | %retval = alloca i32, align 4 |
| 199 | %x.addr = alloca i32, align 4 |
| 200 | store i32 %x, i32* %x.addr, align 4 |
| 201 | %tmp = load i32* %x.addr, align 4 |
| 202 | %cmp = icmp sgt i32 %tmp, 1 |
| 203 | %conv = zext i1 %cmp to i32 |
| 204 | %expval = call i32 @llvm.expect.i32(i32 %conv, i32 1) |
| 205 | %tobool = icmp ne i32 %expval, 0 |
| 206 | br i1 %tobool, label %if.then, label %if.end |
| 207 | |
| 208 | if.then: ; preds = %entry |
| 209 | %call = call i32 (...)* @f() |
| 210 | store i32 %call, i32* %retval |
| 211 | br label %return |
| 212 | |
| 213 | if.end: ; preds = %entry |
| 214 | store i32 1, i32* %retval |
| 215 | br label %return |
| 216 | |
| 217 | return: ; preds = %if.end, %if.then |
| 218 | %0 = load i32* %retval |
| 219 | ret i32 %0 |
| 220 | } |
| 221 | |
| 222 | declare i32 @llvm.expect.i32(i32, i32) nounwind readnone |
| 223 | |