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annotate clang/test/Sema/inline-asm-validate-aarch64.c @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
parents 1d019706d866
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // RUN: %clang_cc1 -triple arm64-apple-darwin -fsyntax-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
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2
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3 typedef unsigned char uint8_t;
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4
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5 uint8_t constraint_r(uint8_t *addr) {
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6 uint8_t byte;
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7
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8 __asm__ volatile("ldrb %0, [%1]" : "=r" (byte) : "r" (addr) : "memory");
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9 // CHECK: warning: value size does not match register size specified by the constraint and modifier
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10 // CHECK: note: use constraint modifier "w"
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11 // CHECK: fix-it:{{.*}}:{8:26-8:28}:"%w0"
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12
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13 return byte;
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14 }
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15
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16 uint8_t constraint_r_symbolic(uint8_t *addr) {
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17 uint8_t byte;
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18
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19 __asm__ volatile("ldrb %[s0], [%[s1]]" : [s0] "=r" (byte) : [s1] "r" (addr) : "memory");
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20 // CHECK: warning: value size does not match register size specified by the constraint and modifier
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21 // CHECK: note: use constraint modifier "w"
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22 // CHECK: fix-it:{{.*}}:{19:26-19:31}:"%w[s0]"
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23
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24 return byte;
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25 }
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26
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27 #define PERCENT "%"
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28
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29 uint8_t constraint_r_symbolic_macro(uint8_t *addr) {
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30 uint8_t byte;
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31
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32 __asm__ volatile("ldrb "PERCENT"[s0], [%[s1]]" : [s0] "=r" (byte) : [s1] "r" (addr) : "memory");
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33 // CHECK: warning: value size does not match register size specified by the constraint and modifier
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34 // CHECK: note: use constraint modifier "w"
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35 // CHECK-NOT: fix-it
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36
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37 return byte;
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38 }
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39
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40 // CHECK: warning: value size does not match register size specified by the constraint and modifier
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41 // CHECK: asm ("%w0 %w1 %2" : "+r" (one) : "r" (wide_two));
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42 // CHECK: note: use constraint modifier "w"
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43 // CHECK: fix-it:{{.*}}:{47:17-47:19}:"%w2"
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44
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45 void read_write_modifier0(int one, int two) {
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46 long wide_two = two;
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47 asm ("%w0 %w1 %2" : "+r" (one) : "r" (wide_two));
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48 }
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49
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50 // CHECK-NOT: warning:
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51 void read_write_modifier1(int one, int two) {
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52 long wide_two = two;
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53 asm ("%w0 %1" : "+r" (one), "+r" (wide_two));
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54 }