http://llvm.org/bugs/show_bug.cgi?id=20201
Bug ID: 20201
Summary: clang-cl: cannot compile this unexpected cast lvalue
yet in inline assembly
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
$ cat test.cpp
#include <stdint.h>
typedef __declspec(align(16)) uint32_t uvec32[4];
static uvec32 kHash16x33 = { 0x92d9e201, 0, 0, 0 }; // 33 ^ 16
static uvec32 kHashMul3 = {
0x00008c61, // 33 ^ 3
0x00000441, // 33 ^ 2
0x00000021, // 33 ^ 1
0x00000001, // 33 ^ 0
};
uint32_t HashDjb2_SSE41(const uint8_t* src) {
uint32_t hash;
asm volatile ( // NOLINT
"movd %%xmm0,%3 \n"
: "+r"(src), // %0
"=g"(hash) // %3
: "m"(kHash16x33), // %4
"m"(kHashMul3) // %8
: "memory", "cc"
, "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
); // NOLINT
return hash;
}
$ clang-cl -c test.cpp
test.cpp(19,9) : error: cannot compile this unexpected cast lvalue yet
: "m"(kHash16x33), // %4
^~~~~~~~~~
test.cpp(20,9) : error: cannot compile this unexpected cast lvalue yet
"m"(kHashMul3) // %8
^~~~~~~~~
2 errors generated.
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