; Without the last chance recoloring, this test fails with:
; "ran out of registers".
-; RUN: not llc -regalloc=greedy -relocation-model=pic -lcr-max-depth=0 < %s 2>&1 | FileCheck %s --check-prefix=CHECK-DEPTH
+; NOTE: With the fix to PR18883, we don't actually run out of registers here
+; any more, and so those checks are disabled. This test remains only for general coverage.
+; XXX: not llc -regalloc=greedy -relocation-model=pic -lcr-max-depth=0 < %s 2>&1 | FileCheck %s --check-prefix=CHECK-DEPTH
; Test whether failure due to cutoff for depth is reported
-; RUN: not llc -regalloc=greedy -relocation-model=pic -lcr-max-interf=1 < %s 2>&1 | FileCheck %s --check-prefix=CHECK-INTERF
+; XXX: not llc -regalloc=greedy -relocation-model=pic -lcr-max-interf=1 < %s 2>&1 | FileCheck %s --check-prefix=CHECK-INTERF
; Test whether failure due to cutoff for interference is reported
+; RUN: llc -regalloc=greedy -relocation-model=pic -lcr-max-interf=1 -lcr-max-depth=0 -exhaustive-register-search < %s > %t 2>&1
+; RUN: FileCheck --input-file=%t %s --check-prefix=CHECK-EXHAUSTIVE
+; Test whether exhaustive-register-search can bypass the depth and interference cutoffs of last chance recoloring
+
target 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"
target triple = "i386-apple-macosx"
; CHECK-NOT: ran out of registers during register allocation
; CHECK-INTERF: error: register allocation failed: maximum interference for recoloring reached
; CHECK-DEPTH: error: register allocation failed: maximum depth for recoloring reached
+; CHECK-EXHAUSTIVE-NOT: error: register allocation failed: maximum {{depth|interference}} for recoloring reached
define void @fp_dh_f870bf31fd8ffe068450366e3f05389a(i8* %arg) #0 {
bb:
indirectbr i8* undef, [label %bb85, label %bb206]
indirectbr i8* undef, [label %bb439, label %bb85]
bb206: ; preds = %bb
- %tmp = getelementptr [499 x i32]* @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 undef
- %tmp207 = load i32* %tmp
+ %tmp = getelementptr [499 x i32], [499 x i32]* @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 undef
+ %tmp207 = load i32, i32* %tmp
%tmp208 = add i32 %tmp207, 1
%tmp209 = inttoptr i32 %tmp208 to i8*
indirectbr i8* %tmp209, [label %bb213]
bb213: ; preds = %bb206
- %tmp214 = load i32* @fp_dh_18716afa4a5354de0a302c8edb3b0ee1, align 4
- %tmp215 = load i8** @fp_dh_20a33cdeefab8f4c8887e82766cb9dcb, align 4
+ %tmp214 = load i32, i32* @fp_dh_18716afa4a5354de0a302c8edb3b0ee1, align 4
+ %tmp215 = load i8*, i8** @fp_dh_20a33cdeefab8f4c8887e82766cb9dcb, align 4
%tmp216 = urem i32 -717428541, %tmp214
- %tmp217 = getelementptr i8* %tmp215, i32 %tmp216
+ %tmp217 = getelementptr i8, i8* %tmp215, i32 %tmp216
%tmp218 = bitcast i8* %tmp217 to i32*
- %tmp219 = load i32* %tmp218, align 4
+ %tmp219 = load i32, i32* %tmp218, align 4
store i32 %tmp219, i32* undef, align 4
%tmp220 = select i1 false, i32 359373646, i32 1677237955
%tmp221 = add i32 %tmp220, 0
indirectbr i8* undef, [label %bb432, label %bb222]
bb222: ; preds = %bb213
- %tmp224 = load i32* undef, align 4
- %tmp225 = load i32* undef, align 4
+ %tmp224 = load i32, i32* undef, align 4
+ %tmp225 = load i32, i32* undef, align 4
%tmp226 = xor i32 %tmp225, %tmp224
%tmp227 = shl i32 %tmp226, 1
%tmp228 = and i32 %tmp227, -2048880334
%tmp231 = xor i32 %tmp230, 1059356227
%tmp232 = mul i32 %tmp231, 1603744721
%tmp233 = urem i32 %tmp232, 259
- %tmp234 = getelementptr [259 x i8]* bitcast (i8* getelementptr inbounds ([5419648 x i8]* @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 2039075) to [259 x i8]*), i32 0, i32 %tmp233
- %tmp235 = load i8* %tmp234, align 1
+ %tmp234 = getelementptr [259 x i8], [259 x i8]* bitcast (i8* getelementptr inbounds ([5419648 x i8], [5419648 x i8]* @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 2039075) to [259 x i8]*), i32 0, i32 %tmp233
+ %tmp235 = load i8, i8* %tmp234, align 1
%tmp236 = add i32 %tmp233, 2
- %tmp237 = getelementptr [264 x i8]* bitcast (i8* getelementptr inbounds ([5419648 x i8]* @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 3388166) to [264 x i8]*), i32 0, i32 %tmp236
- %tmp238 = load i8* %tmp237, align 1
- %tmp239 = getelementptr [265 x i8]* bitcast (i8* getelementptr inbounds ([5419648 x i8]* @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 1325165) to [265 x i8]*), i32 0, i32 0
- %tmp240 = load i8* %tmp239, align 1
+ %tmp237 = getelementptr [264 x i8], [264 x i8]* bitcast (i8* getelementptr inbounds ([5419648 x i8], [5419648 x i8]* @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 3388166) to [264 x i8]*), i32 0, i32 %tmp236
+ %tmp238 = load i8, i8* %tmp237, align 1
+ %tmp239 = getelementptr [265 x i8], [265 x i8]* bitcast (i8* getelementptr inbounds ([5419648 x i8], [5419648 x i8]* @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 1325165) to [265 x i8]*), i32 0, i32 0
+ %tmp240 = load i8, i8* %tmp239, align 1
%tmp241 = add i32 %tmp233, 6
%tmp242 = trunc i32 %tmp241 to i8
%tmp243 = mul i8 %tmp242, -3
%tmp246 = and i8 %tmp245, 6
%tmp247 = sub i8 0, %tmp246
%tmp248 = add i8 %tmp244, %tmp247
- %tmp249 = load i8* undef, align 1
+ %tmp249 = load i8, i8* undef, align 1
%tmp250 = xor i8 %tmp235, 17
%tmp251 = xor i8 %tmp250, %tmp238
%tmp252 = xor i8 %tmp251, %tmp240
%tmp254 = xor i8 %tmp253, %tmp248
%tmp255 = zext i8 %tmp254 to i16
%tmp256 = shl nuw i16 %tmp255, 8
- %tmp257 = load i8* null, align 1
- %tmp258 = load i32* @fp_dh_18716afa4a5354de0a302c8edb3b0ee1, align 4
- %tmp259 = load i8** @fp_dh_20a33cdeefab8f4c8887e82766cb9dcb, align 4
+ %tmp257 = load i8, i8* null, align 1
+ %tmp258 = load i32, i32* @fp_dh_18716afa4a5354de0a302c8edb3b0ee1, align 4
+ %tmp259 = load i8*, i8** @fp_dh_20a33cdeefab8f4c8887e82766cb9dcb, align 4
%tmp260 = urem i32 -717428541, %tmp258
- %tmp261 = getelementptr i8* %tmp259, i32 %tmp260
+ %tmp261 = getelementptr i8, i8* %tmp259, i32 %tmp260
%tmp262 = bitcast i8* %tmp261 to i32*
- %tmp263 = load i32* %tmp262, align 4
+ %tmp263 = load i32, i32* %tmp262, align 4
%tmp264 = xor i32 %tmp263, 0
%tmp265 = shl i32 %tmp264, 1
%tmp266 = and i32 %tmp265, -1312119832
%tmp270 = mul i32 %tmp269, 1603744721
%tmp271 = urem i32 %tmp270, 259
%tmp274 = add i32 %tmp271, 3
- %tmp275 = getelementptr [265 x i8]* bitcast (i8* getelementptr inbounds ([5419648 x i8]* @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 1325165) to [265 x i8]*), i32 0, i32 %tmp274
- %tmp276 = load i8* %tmp275, align 1
+ %tmp275 = getelementptr [265 x i8], [265 x i8]* bitcast (i8* getelementptr inbounds ([5419648 x i8], [5419648 x i8]* @fp_dh_9d93c897906e39883c58b034c8e786b2, i32 0, i32 1325165) to [265 x i8]*), i32 0, i32 %tmp274
+ %tmp276 = load i8, i8* %tmp275, align 1
%tmp277 = add i32 %tmp271, 6
%tmp278 = trunc i32 %tmp277 to i8
%tmp279 = mul i8 %tmp278, -3
%tmp334 = add i32 %tmp327, -1456704142
%tmp335 = zext i1 %tmp333 to i32
%tmp336 = add i32 %tmp334, %tmp335
- %tmp337 = getelementptr [499 x i32]* @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 %tmp336
- %tmp338 = load i32* %tmp337
+ %tmp337 = getelementptr [499 x i32], [499 x i32]* @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 %tmp336
+ %tmp338 = load i32, i32* %tmp337
%tmp339 = add i32 %tmp338, 1
%tmp340 = inttoptr i32 %tmp339 to i8*
indirectbr i8* %tmp340, [label %bb85, label %bb439]
bb432: ; preds = %bb432, %bb213
%tmp433 = phi i32 [ %tmp221, %bb213 ], [ %tmp433, %bb432 ]
%tmp434 = add i32 %tmp433, 1022523279
- %tmp435 = getelementptr [499 x i32]* @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 %tmp434
- %tmp436 = load i32* %tmp435
+ %tmp435 = getelementptr [499 x i32], [499 x i32]* @fp_dh_36985b17790d59a27994eaab5dcb00ee, i32 0, i32 %tmp434
+ %tmp436 = load i32, i32* %tmp435
%tmp437 = add i32 %tmp436, 1
%tmp438 = inttoptr i32 %tmp437 to i8*
indirectbr i8* %tmp438, [label %bb432]
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