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1; RUN: llc -regalloc=greedy -relocation-model=pic < %s 2>&1 | FileCheck %s2; Without the last chance recoloring, this test fails with:3; "ran out of registers".4 5; NOTE: With the fix to PR18883, we don't actually run out of registers here6; any more, and so those checks are disabled. This test remains only for general coverage.7; XXX: not llc -regalloc=greedy -relocation-model=pic -lcr-max-depth=0 < %s 2>&1 | FileCheck %s --check-prefix=CHECK-DEPTH8; Test whether failure due to cutoff for depth is reported9 10; XXX: not llc -regalloc=greedy -relocation-model=pic -lcr-max-interf=1 < %s 2>&1 | FileCheck %s --check-prefix=CHECK-INTERF11; Test whether failure due to cutoff for interference is reported12 13; RUN: llc -regalloc=greedy -relocation-model=pic -lcr-max-interf=1 -lcr-max-depth=0 -exhaustive-register-search < %s > %t 2>&114; RUN: FileCheck --input-file=%t %s --check-prefix=CHECK-EXHAUSTIVE15; Test whether exhaustive-register-search can bypass the depth and interference cutoffs of last chance recoloring 16 17target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128"18target triple = "i386-apple-macosx"19 20@fp_dh_36985b17790d59a27994eaab5dcb00ee = external constant [499 x i32]21@fp_dh_18716afa4a5354de0a302c8edb3b0ee1 = external global i3222@fp_dh_20a33cdeefab8f4c8887e82766cb9dcb = external global ptr23@fp_dh_9d93c897906e39883c58b034c8e786b2 = external global [5419648 x i8], align 1624 25; Function Attrs: nounwind ssp26; CHECK-NOT: ran out of registers during register allocation27; CHECK-INTERF: error: register allocation failed: maximum interference for recoloring reached28; CHECK-DEPTH: error: register allocation failed: maximum depth for recoloring reached29; CHECK-EXHAUSTIVE-NOT: error: register allocation failed: maximum {{depth|interference}} for recoloring reached30define void @fp_dh_f870bf31fd8ffe068450366e3f05389a(ptr %arg) #0 {31bb:32 indirectbr ptr undef, [label %bb85, label %bb206]33 34bb85: ; preds = %bb222, %bb85, %bb35 store ptr blockaddress(@fp_dh_f870bf31fd8ffe068450366e3f05389a, %bb206), ptr undef, align 436 indirectbr ptr undef, [label %bb439, label %bb85]37 38bb206: ; preds = %bb39 %tmp = getelementptr [499 x i32], ptr @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 undef40 %tmp207 = load i32, ptr %tmp41 %tmp208 = add i32 %tmp207, 142 %tmp209 = inttoptr i32 %tmp208 to ptr43 indirectbr ptr %tmp209, [label %bb213]44 45bb213: ; preds = %bb20646 %tmp214 = load i32, ptr @fp_dh_18716afa4a5354de0a302c8edb3b0ee1, align 447 %tmp215 = load ptr, ptr @fp_dh_20a33cdeefab8f4c8887e82766cb9dcb, align 448 %tmp216 = urem i32 -717428541, %tmp21449 %tmp217 = getelementptr i8, ptr %tmp215, i32 %tmp21650 %tmp219 = load i32, ptr %tmp217, align 451 store i32 %tmp219, ptr undef, align 452 %tmp220 = select i1 false, i32 359373646, i32 167723795553 %tmp221 = add i32 %tmp220, 054 indirectbr ptr undef, [label %bb432, label %bb222]55 56bb222: ; preds = %bb21357 %tmp224 = load i32, ptr undef, align 458 %tmp225 = load i32, ptr undef, align 459 %tmp226 = xor i32 %tmp225, %tmp22460 %tmp227 = shl i32 %tmp226, 161 %tmp228 = and i32 %tmp227, -204888033462 %tmp229 = sub i32 0, %tmp22863 %tmp230 = add i32 0, %tmp22964 %tmp231 = xor i32 %tmp230, 105935622765 %tmp232 = mul i32 %tmp231, 160374472166 %tmp233 = urem i32 %tmp232, 25967 %tmp234 = getelementptr [259 x i8], ptr getelementptr inbounds ([5419648 x i8], ptr @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 2039075), i32 0, i32 %tmp23368 %tmp235 = load i8, ptr %tmp234, align 169 %tmp236 = add i32 %tmp233, 270 %tmp237 = getelementptr [264 x i8], ptr getelementptr inbounds ([5419648 x i8], ptr @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 3388166), i32 0, i32 %tmp23671 %tmp238 = load i8, ptr %tmp237, align 172 %tmp239 = getelementptr [265 x i8], ptr getelementptr inbounds ([5419648 x i8], ptr @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 1325165), i32 0, i32 073 %tmp240 = load i8, ptr %tmp239, align 174 %tmp241 = add i32 %tmp233, 675 %tmp242 = trunc i32 %tmp241 to i876 %tmp243 = mul i8 %tmp242, -377 %tmp244 = add i8 %tmp243, 378 %tmp245 = mul i8 %tmp242, -679 %tmp246 = and i8 %tmp245, 680 %tmp247 = sub i8 0, %tmp24681 %tmp248 = add i8 %tmp244, %tmp24782 %tmp249 = load i8, ptr undef, align 183 %tmp250 = xor i8 %tmp235, 1784 %tmp251 = xor i8 %tmp250, %tmp23885 %tmp252 = xor i8 %tmp251, %tmp24086 %tmp253 = xor i8 %tmp252, %tmp24987 %tmp254 = xor i8 %tmp253, %tmp24888 %tmp255 = zext i8 %tmp254 to i1689 %tmp256 = shl nuw i16 %tmp255, 890 %tmp257 = load i8, ptr null, align 191 %tmp258 = load i32, ptr @fp_dh_18716afa4a5354de0a302c8edb3b0ee1, align 492 %tmp259 = load ptr, ptr @fp_dh_20a33cdeefab8f4c8887e82766cb9dcb, align 493 %tmp260 = urem i32 -717428541, %tmp25894 %tmp261 = getelementptr i8, ptr %tmp259, i32 %tmp26095 %tmp263 = load i32, ptr %tmp261, align 496 %tmp264 = xor i32 %tmp263, 097 %tmp265 = shl i32 %tmp264, 198 %tmp266 = and i32 %tmp265, -131211983299 %tmp267 = sub i32 0, %tmp266100 %tmp268 = add i32 0, %tmp267101 %tmp269 = xor i32 %tmp268, 623994670102 %tmp270 = mul i32 %tmp269, 1603744721103 %tmp271 = urem i32 %tmp270, 259104 %tmp274 = add i32 %tmp271, 3105 %tmp275 = getelementptr [265 x i8], ptr getelementptr inbounds ([5419648 x i8], ptr @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 1325165), i32 0, i32 %tmp274106 %tmp276 = load i8, ptr %tmp275, align 1107 %tmp277 = add i32 %tmp271, 6108 %tmp278 = trunc i32 %tmp277 to i8109 %tmp279 = mul i8 %tmp278, -3110 %tmp280 = add i8 %tmp279, 31111 %tmp281 = add i8 %tmp280, 0112 %tmp282 = xor i8 %tmp257, 13113 %tmp283 = xor i8 %tmp282, 0114 %tmp284 = xor i8 %tmp283, 0115 %tmp285 = xor i8 %tmp284, %tmp276116 %tmp286 = xor i8 %tmp285, %tmp281117 %tmp287 = zext i8 %tmp286 to i16118 %tmp288 = or i16 %tmp287, %tmp256119 %tmp289 = xor i16 %tmp288, 14330120 %tmp290 = add i16 0, %tmp289121 %tmp291 = add i16 %tmp290, -14330122 %tmp292 = zext i16 %tmp291 to i32123 %tmp293 = add i16 %tmp290, -14330124 %tmp294 = lshr i16 %tmp293, 12125 %tmp295 = zext i16 %tmp294 to i32126 %tmp296 = sub i32 0, %tmp295127 %tmp297 = xor i32 %tmp296, 16128 %tmp298 = add i32 0, %tmp297129 %tmp299 = and i32 %tmp298, 31130 %tmp300 = and i32 %tmp292, 30864131 %tmp301 = shl i32 %tmp300, %tmp299132 %tmp302 = xor i32 0, %tmp301133 %tmp303 = add i32 0, %tmp302134 %tmp304 = and i32 %tmp298, 31135 %tmp305 = and i32 %tmp303, 25568136 %tmp306 = lshr i32 %tmp305, %tmp304137 %tmp307 = xor i32 0, %tmp306138 %tmp308 = add i32 0, %tmp307139 %tmp309 = trunc i32 %tmp308 to i16140 %tmp310 = shl i16 %tmp309, 1141 %tmp311 = and i16 %tmp310, -4648142 %tmp312 = shl i16 %tmp309, 1143 %tmp313 = and i16 %tmp312, 4646144 %tmp314 = xor i16 %tmp311, 17700145 %tmp315 = xor i16 %tmp313, 17700146 %tmp316 = add i16 %tmp314, %tmp315147 %tmp317 = and i16 %tmp314, %tmp315148 %tmp318 = shl nuw i16 %tmp317, 1149 %tmp319 = sub i16 0, %tmp318150 %tmp320 = add i16 %tmp316, %tmp319151 %tmp321 = and i16 %tmp320, 29906152 %tmp322 = xor i16 %tmp309, 14953153 %tmp323 = add i16 0, %tmp322154 %tmp324 = sub i16 0, %tmp321155 %tmp325 = xor i16 %tmp324, %tmp323156 %tmp326 = add i16 0, %tmp325157 %tmp327 = add i32 %tmp221, 1161362661158 %tmp333 = icmp eq i16 %tmp326, 14953159 %tmp334 = add i32 %tmp327, -1456704142160 %tmp335 = zext i1 %tmp333 to i32161 %tmp336 = add i32 %tmp334, %tmp335162 %tmp337 = getelementptr [499 x i32], ptr @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 %tmp336163 %tmp338 = load i32, ptr %tmp337164 %tmp339 = add i32 %tmp338, 1165 %tmp340 = inttoptr i32 %tmp339 to ptr166 indirectbr ptr %tmp340, [label %bb85, label %bb439]167 168bb432: ; preds = %bb432, %bb213169 %tmp433 = phi i32 [ %tmp221, %bb213 ], [ %tmp433, %bb432 ]170 %tmp434 = add i32 %tmp433, 1022523279171 %tmp435 = getelementptr [499 x i32], ptr @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 %tmp434172 %tmp436 = load i32, ptr %tmp435173 %tmp437 = add i32 %tmp436, 1174 %tmp438 = inttoptr i32 %tmp437 to ptr175 indirectbr ptr %tmp438, [label %bb432]176 177bb439: ; preds = %bb222, %bb85178 ret void179}180 181attributes #0 = { nounwind ssp "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "use-soft-float"="false" }182