25e8a6754e
A few (mostly CodeGen) parts of Clang were tightly coupled to the AArch64 backend. Now that it's gone, they will not even compile. I've also deduplicated RUN lines in many of the AArch64 tests. This might improve "make check-all" time noticably: some of those NEON tests were monsters. llvm-svn: 209578
57 lines
2.0 KiB
C
57 lines
2.0 KiB
C
// RUN: %clang_cc1 -triple arm64-none-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// The only part clang really deals with is the lvalue/rvalue
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// distinction on constraints. It's sufficient to emit llvm and make
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// sure that's sane.
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long var;
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void test_generic_constraints(int var32, long var64) {
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asm("add %0, %1, %1" : "=r"(var32) : "0"(var32));
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// CHECK: [[R32_ARG:%[a-zA-Z0-9]+]] = load i32*
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// CHECK: call i32 asm "add $0, $1, $1", "=r,0"(i32 [[R32_ARG]])
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asm("add %0, %1, %1" : "=r"(var64) : "0"(var64));
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// CHECK: [[R32_ARG:%[a-zA-Z0-9]+]] = load i64*
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// CHECK: call i64 asm "add $0, $1, $1", "=r,0"(i64 [[R32_ARG]])
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asm("ldr %0, %1" : "=r"(var32) : "m"(var));
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asm("ldr %0, [%1]" : "=r"(var64) : "r"(&var));
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// CHECK: call i32 asm "ldr $0, $1", "=r,*m"(i64* @var)
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// CHECK: call i64 asm "ldr $0, [$1]", "=r,r"(i64* @var)
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}
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float f;
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double d;
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void test_constraint_w() {
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asm("fadd %s0, %s1, %s1" : "=w"(f) : "w"(f));
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// CHECK: [[FLT_ARG:%[a-zA-Z_0-9]+]] = load float* @f
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// CHECK: call float asm "fadd ${0:s}, ${1:s}, ${1:s}", "=w,w"(float [[FLT_ARG]])
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asm("fadd %d0, %d1, %d1" : "=w"(d) : "w"(d));
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// CHECK: [[DBL_ARG:%[a-zA-Z_0-9]+]] = load double* @d
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// CHECK: call double asm "fadd ${0:d}, ${1:d}, ${1:d}", "=w,w"(double [[DBL_ARG]])
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}
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void test_constraints_immed(void) {
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asm("add x0, x0, %0" : : "I"(4095) : "x0");
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asm("and w0, w0, %0" : : "K"(0xaaaaaaaa) : "w0");
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asm("and x0, x0, %0" : : "L"(0xaaaaaaaaaaaaaaaa) : "x0");
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// CHECK: call void asm sideeffect "add x0, x0, $0", "I,~{x0}"(i32 4095)
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// CHECK: call void asm sideeffect "and w0, w0, $0", "K,~{w0}"(i32 -1431655766)
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// CHECK: call void asm sideeffect "and x0, x0, $0", "L,~{x0}"(i64 -6148914691236517206)
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}
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void test_constraint_S(void) {
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int *addr;
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asm("adrp %0, %A1\n\t"
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"add %0, %0, %L1" : "=r"(addr) : "S"(&var));
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// CHECK: call i32* asm "adrp $0, ${1:A}\0A\09add $0, $0, ${1:L}", "=r,S"(i64* @var)
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}
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void test_constraint_Q(void) {
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int val;
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asm("ldxr %0, %1" : "=r"(val) : "Q"(var));
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// CHECK: call i32 asm "ldxr $0, $1", "=r,*Q"(i64* @var)
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}
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