[Mesa-dev] [PATCH v2 3/3] ac/nir: assert printfs will fit

[James Legg]

---
 src/amd/common/ac_nir_to_llvm.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 3a26668..b32a9f5 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -1134,7 +1134,9 @@ static LLVMValueRef emit_intrin_1f_param(struct 
nir_to_llvm_context *ctx,
                to_float(ctx, src0),
        };
 
-       sprintf(name, "%s.f%d", intrin, get_elem_bits(ctx, result_type));
+       MAYBE_UNUSED const int length = snprintf(name, sizeof(name), "%s.f%d", 
intrin,
+                                                get_elem_bits(ctx, 
result_type));
+       assert(length < sizeof(name));
        return ac_build_intrinsic(&ctx->ac, name, result_type, params, 1, 
AC_FUNC_ATTR_READNONE);
 }
 
@@ -1149,7 +1151,9 @@ static LLVMValueRef emit_intrin_2f_param(struct 
nir_to_llvm_context *ctx,
                to_float(ctx, src1),
        };
 
-       sprintf(name, "%s.f%d", intrin, get_elem_bits(ctx, result_type));
+       MAYBE_UNUSED const int length = snprintf(name, sizeof(name), "%s.f%d", 
intrin,
+                                                get_elem_bits(ctx, 
result_type));
+       assert(length < sizeof(name));
        return ac_build_intrinsic(&ctx->ac, name, result_type, params, 2, 
AC_FUNC_ATTR_READNONE);
 }
 
@@ -1165,7 +1169,9 @@ static LLVMValueRef emit_intrin_3f_param(struct 
nir_to_llvm_context *ctx,
                to_float(ctx, src2),
        };
 
-       sprintf(name, "%s.f%d", intrin, get_elem_bits(ctx, result_type));
+       MAYBE_UNUSED const int length = snprintf(name, sizeof(name), "%s.f%d", 
intrin,
+                                                get_elem_bits(ctx, 
result_type));
+       assert(length < sizeof(name));
        return ac_build_intrinsic(&ctx->ac, name, result_type, params, 3, 
AC_FUNC_ATTR_READNONE);
 }
 
@@ -3425,8 +3431,9 @@ static LLVMValueRef visit_image_atomic(struct 
nir_to_llvm_context *ctx,
        build_int_type_name(LLVMTypeOf(coords),
                            coords_type, sizeof(coords_type));
 
-       snprintf(intrinsic_name, sizeof(intrinsic_name),
-                        "%s.%s.%s", base_name, atomic_name, coords_type);
+       MAYBE_UNUSED const int length = snprintf(intrinsic_name, 
sizeof(intrinsic_name),
+                                                "%s.%s.%s", base_name, 
atomic_name, coords_type);
+       assert(length < sizeof(intrinsic_name));
        return ac_build_intrinsic(&ctx->ac, intrinsic_name, ctx->i32, params, 
param_count, 0);
 }
 
-- 
2.9.4

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