forked from OSchip/llvm-project
41 lines
2.1 KiB
C
41 lines
2.1 KiB
C
// RUN: %clang_cc1 -fprofile-instr-generate -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -main-file-name loopmacro.c %s | FileCheck %s
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# define HASH_BITS 15
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#define MIN_MATCH 3
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#define H_SHIFT ((HASH_BITS+MIN_MATCH-1)/MIN_MATCH)
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#define WMASK 0xFFFF
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#define HASH_MASK 0xFFFF
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#define UPDATE_HASH(h,c) (h = (((h)<<H_SHIFT) ^ (c)) & HASH_MASK)
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#define INSERT_STRING(s, match_head) \
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(UPDATE_HASH(ins_h, window[(s) + MIN_MATCH-1]), \
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prev[(s) & WMASK] = match_head = head[ins_h], \
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head[ins_h] = (s))
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int main() { // CHECK: File 0, [[@LINE]]:12 -> [[@LINE+12]]:2 = #0 (HasCodeBefore = 0)
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int strstart = 0;
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int hash_head = 2;
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int prev_length = 5;
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int ins_h = 1;
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int prev[32] = { 0 };
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int head[32] = { 0 };
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int window[1024] = { 0 };
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do { // CHECK-NEXT: File 0, [[@LINE]]:6 -> [[@LINE+3]]:30 = (#0 + #1) (HasCodeBefore = 0)
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strstart++;
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INSERT_STRING(strstart, hash_head); // CHECK-NEXT: Expansion,File 0, [[@LINE]]:7 -> [[@LINE]]:20 = (#0 + #1) (HasCodeBefore = 0, Expanded file = 1)
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} while (--prev_length != 0);
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}
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// CHECK-NEXT: File 0, 24:21 -> 24:29 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: File 0, 24:21 -> 24:29 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: File 0, 24:21 -> 24:29 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: File 0, 24:31 -> 24:40 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: File 1, 10:4 -> 12:23 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: Expansion,File 1, 10:5 -> 10:16 = (#0 + #1) (HasCodeBefore = 0, Expanded file = 2)
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// CHECK-NEXT: File 1, 10:17 -> 10:22 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: File 1, 10:17 -> 10:22 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: File 1, 10:24 -> 10:32 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: File 1, 10:33 -> 10:36 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: File 1, 10:46 -> 10:49 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: File 2, 8:26 -> 8:66 = (#0 + #1) (HasCodeBefore = 0)
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// CHECK-NEXT: Expansion,File 2, 8:38 -> 8:45 = (#0 + #1) (HasCodeBefore = 0, Expanded file = 3)
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// CHECK-NEXT: File 3, 5:18 -> 5:53 = (#0 + #1) (HasCodeBefore = 0)
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