xref: /minix3/external/bsd/llvm/dist/clang/test/Sema/inline-asm-validate-aarch64.c (revision 0a6a1f1d05b60e214de2f05a7310ddd1f0e590e7)
1*0a6a1f1dSLionel Sambuc // RUN: %clang_cc1 -triple arm64-apple-darwin -fsyntax-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
2*0a6a1f1dSLionel Sambuc 
3*0a6a1f1dSLionel Sambuc typedef unsigned char uint8_t;
4*0a6a1f1dSLionel Sambuc 
constraint_r(uint8_t * addr)5*0a6a1f1dSLionel Sambuc uint8_t constraint_r(uint8_t *addr) {
6*0a6a1f1dSLionel Sambuc   uint8_t byte;
7*0a6a1f1dSLionel Sambuc 
8*0a6a1f1dSLionel Sambuc   __asm__ volatile("ldrb %0, [%1]" : "=r" (byte) : "r" (addr) : "memory");
9*0a6a1f1dSLionel Sambuc // CHECK: warning: value size does not match register size specified by the constraint and modifier
10*0a6a1f1dSLionel Sambuc // CHECK: note: use constraint modifier "w"
11*0a6a1f1dSLionel Sambuc // CHECK: fix-it:{{.*}}:{8:26-8:28}:"%w0"
12*0a6a1f1dSLionel Sambuc 
13*0a6a1f1dSLionel Sambuc   return byte;
14*0a6a1f1dSLionel Sambuc }
15*0a6a1f1dSLionel Sambuc 
constraint_r_symbolic(uint8_t * addr)16*0a6a1f1dSLionel Sambuc uint8_t constraint_r_symbolic(uint8_t *addr) {
17*0a6a1f1dSLionel Sambuc   uint8_t byte;
18*0a6a1f1dSLionel Sambuc 
19*0a6a1f1dSLionel Sambuc   __asm__ volatile("ldrb %[s0], [%[s1]]" : [s0] "=r" (byte) : [s1] "r" (addr) : "memory");
20*0a6a1f1dSLionel Sambuc // CHECK: warning: value size does not match register size specified by the constraint and modifier
21*0a6a1f1dSLionel Sambuc // CHECK: note: use constraint modifier "w"
22*0a6a1f1dSLionel Sambuc // CHECK: fix-it:{{.*}}:{19:26-19:31}:"%w[s0]"
23*0a6a1f1dSLionel Sambuc 
24*0a6a1f1dSLionel Sambuc   return byte;
25*0a6a1f1dSLionel Sambuc }
26*0a6a1f1dSLionel Sambuc 
27*0a6a1f1dSLionel Sambuc #define PERCENT "%"
28*0a6a1f1dSLionel Sambuc 
constraint_r_symbolic_macro(uint8_t * addr)29*0a6a1f1dSLionel Sambuc uint8_t constraint_r_symbolic_macro(uint8_t *addr) {
30*0a6a1f1dSLionel Sambuc   uint8_t byte;
31*0a6a1f1dSLionel Sambuc 
32*0a6a1f1dSLionel Sambuc   __asm__ volatile("ldrb "PERCENT"[s0], [%[s1]]" : [s0] "=r" (byte) : [s1] "r" (addr) : "memory");
33*0a6a1f1dSLionel Sambuc // CHECK: warning: value size does not match register size specified by the constraint and modifier
34*0a6a1f1dSLionel Sambuc // CHECK: note: use constraint modifier "w"
35*0a6a1f1dSLionel Sambuc // CHECK-NOT: fix-it
36*0a6a1f1dSLionel Sambuc 
37*0a6a1f1dSLionel Sambuc   return byte;
38*0a6a1f1dSLionel Sambuc }
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