| // RUN: %clang_cc1 -emit-llvm -o %t %s |
| // RUN: not grep __builtin %t |
| // RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-darwin-apple | FileCheck %s |
| |
| int printf(const char *, ...); |
| |
| void p(char *str, int x) { |
| printf("%s: %d\n", str, x); |
| } |
| void q(char *str, double x) { |
| printf("%s: %f\n", str, x); |
| } |
| void r(char *str, void *ptr) { |
| printf("%s: %p\n", str, ptr); |
| } |
| |
| int random(void); |
| |
| int main() { |
| int N = random(); |
| #define P(n,args) p(#n #args, __builtin_##n args) |
| #define Q(n,args) q(#n #args, __builtin_##n args) |
| #define R(n,args) r(#n #args, __builtin_##n args) |
| #define V(n,args) p(#n #args, (__builtin_##n args, 0)) |
| P(types_compatible_p, (int, float)); |
| P(choose_expr, (0, 10, 20)); |
| P(constant_p, (sizeof(10))); |
| P(expect, (N == 12, 0)); |
| V(prefetch, (&N)); |
| V(prefetch, (&N, 1)); |
| V(prefetch, (&N, 1, 0)); |
| |
| // Numeric Constants |
| |
| Q(huge_val, ()); |
| Q(huge_valf, ()); |
| Q(huge_vall, ()); |
| Q(inf, ()); |
| Q(inff, ()); |
| Q(infl, ()); |
| |
| P(fpclassify, (0, 1, 2, 3, 4, 1.0)); |
| P(fpclassify, (0, 1, 2, 3, 4, 1.0f)); |
| P(fpclassify, (0, 1, 2, 3, 4, 1.0l)); |
| |
| Q(nan, ("")); |
| Q(nanf, ("")); |
| Q(nanl, ("")); |
| Q(nans, ("")); |
| Q(nan, ("10")); |
| Q(nanf, ("10")); |
| Q(nanl, ("10")); |
| Q(nans, ("10")); |
| |
| P(isgreater, (1., 2.)); |
| P(isgreaterequal, (1., 2.)); |
| P(isless, (1., 2.)); |
| P(islessequal, (1., 2.)); |
| P(islessgreater, (1., 2.)); |
| P(isunordered, (1., 2.)); |
| |
| P(isinf, (1.)); |
| P(isinf_sign, (1.)); |
| P(isnan, (1.)); |
| |
| // Bitwise & Numeric Functions |
| |
| P(abs, (N)); |
| |
| P(clz, (N)); |
| P(clzl, (N)); |
| P(clzll, (N)); |
| P(ctz, (N)); |
| P(ctzl, (N)); |
| P(ctzll, (N)); |
| P(ffs, (N)); |
| P(ffsl, (N)); |
| P(ffsll, (N)); |
| P(parity, (N)); |
| P(parityl, (N)); |
| P(parityll, (N)); |
| P(popcount, (N)); |
| P(popcountl, (N)); |
| P(popcountll, (N)); |
| Q(powi, (1.2f, N)); |
| Q(powif, (1.2f, N)); |
| Q(powil, (1.2f, N)); |
| |
| // Lib functions |
| int a, b, n = random(); // Avoid optimizing out. |
| char s0[10], s1[] = "Hello"; |
| V(strcat, (s0, s1)); |
| V(strcmp, (s0, s1)); |
| V(strncat, (s0, s1, n)); |
| V(strchr, (s0, s1[0])); |
| V(strrchr, (s0, s1[0])); |
| V(strcpy, (s0, s1)); |
| V(strncpy, (s0, s1, n)); |
| |
| // Object size checking |
| V(__memset_chk, (s0, 0, sizeof s0, n)); |
| V(__memcpy_chk, (s0, s1, sizeof s0, n)); |
| V(__memmove_chk, (s0, s1, sizeof s0, n)); |
| V(__mempcpy_chk, (s0, s1, sizeof s0, n)); |
| V(__strncpy_chk, (s0, s1, sizeof s0, n)); |
| V(__strcpy_chk, (s0, s1, n)); |
| s0[0] = 0; |
| V(__strcat_chk, (s0, s1, n)); |
| P(object_size, (s0, 0)); |
| P(object_size, (s0, 1)); |
| P(object_size, (s0, 2)); |
| P(object_size, (s0, 3)); |
| |
| // Whatever |
| |
| P(bswap16, (N)); |
| P(bswap32, (N)); |
| P(bswap64, (N)); |
| // FIXME |
| // V(clear_cache, (&N, &N+1)); |
| V(trap, ()); |
| R(extract_return_addr, (&N)); |
| P(signbit, (1.0)); |
| |
| return 0; |
| } |
| |
| |
| |
| void foo() { |
| __builtin_strcat(0, 0); |
| } |
| |
| // CHECK-LABEL: define void @bar( |
| void bar() { |
| float f; |
| double d; |
| long double ld; |
| |
| // LLVM's hex representation of float constants is really unfortunate; |
| // basically it does a float-to-double "conversion" and then prints the |
| // hex form of that. That gives us weird artifacts like exponents |
| // that aren't numerically similar to the original exponent and |
| // significand bit-patterns that are offset by three bits (because |
| // the exponent was expanded from 8 bits to 11). |
| // |
| // 0xAE98 == 1010111010011000 |
| // 0x15D3 == 1010111010011 |
| |
| f = __builtin_huge_valf(); // CHECK: float 0x7FF0000000000000 |
| d = __builtin_huge_val(); // CHECK: double 0x7FF0000000000000 |
| ld = __builtin_huge_vall(); // CHECK: x86_fp80 0xK7FFF8000000000000000 |
| f = __builtin_nanf(""); // CHECK: float 0x7FF8000000000000 |
| d = __builtin_nan(""); // CHECK: double 0x7FF8000000000000 |
| ld = __builtin_nanl(""); // CHECK: x86_fp80 0xK7FFFC000000000000000 |
| f = __builtin_nanf("0xAE98"); // CHECK: float 0x7FF815D300000000 |
| d = __builtin_nan("0xAE98"); // CHECK: double 0x7FF800000000AE98 |
| ld = __builtin_nanl("0xAE98"); // CHECK: x86_fp80 0xK7FFFC00000000000AE98 |
| f = __builtin_nansf(""); // CHECK: float 0x7FF4000000000000 |
| d = __builtin_nans(""); // CHECK: double 0x7FF4000000000000 |
| ld = __builtin_nansl(""); // CHECK: x86_fp80 0xK7FFFA000000000000000 |
| f = __builtin_nansf("0xAE98"); // CHECK: float 0x7FF015D300000000 |
| d = __builtin_nans("0xAE98"); // CHECK: double 0x7FF000000000AE98 |
| ld = __builtin_nansl("0xAE98");// CHECK: x86_fp80 0xK7FFF800000000000AE98 |
| |
| } |
| // CHECK: } |
| |
| |
| // CHECK-LABEL: define void @test_float_builtins |
| void test_float_builtins(float F, double D, long double LD) { |
| volatile int res; |
| res = __builtin_isinf(F); |
| // CHECK: call float @llvm.fabs.f32(float |
| // CHECK: fcmp oeq float {{.*}}, 0x7FF0000000000000 |
| |
| res = __builtin_isinf(D); |
| // CHECK: call double @llvm.fabs.f64(double |
| // CHECK: fcmp oeq double {{.*}}, 0x7FF0000000000000 |
| |
| res = __builtin_isinf(LD); |
| // CHECK: call x86_fp80 @llvm.fabs.f80(x86_fp80 |
| // CHECK: fcmp oeq x86_fp80 {{.*}}, 0xK7FFF8000000000000000 |
| |
| res = __builtin_isinf_sign(F); |
| // CHECK: %[[ABS:.*]] = call float @llvm.fabs.f32(float %[[ARG:.*]]) |
| // CHECK: %[[ISINF:.*]] = fcmp oeq float %[[ABS]], 0x7FF0000000000000 |
| // CHECK: %[[BITCAST:.*]] = bitcast float %[[ARG]] to i32 |
| // CHECK: %[[ISNEG:.*]] = icmp slt i32 %[[BITCAST]], 0 |
| // CHECK: %[[SIGN:.*]] = select i1 %[[ISNEG]], i32 -1, i32 1 |
| // CHECK: select i1 %[[ISINF]], i32 %[[SIGN]], i32 0 |
| |
| res = __builtin_isinf_sign(D); |
| // CHECK: %[[ABS:.*]] = call double @llvm.fabs.f64(double %[[ARG:.*]]) |
| // CHECK: %[[ISINF:.*]] = fcmp oeq double %[[ABS]], 0x7FF0000000000000 |
| // CHECK: %[[BITCAST:.*]] = bitcast double %[[ARG]] to i64 |
| // CHECK: %[[ISNEG:.*]] = icmp slt i64 %[[BITCAST]], 0 |
| // CHECK: %[[SIGN:.*]] = select i1 %[[ISNEG]], i32 -1, i32 1 |
| // CHECK: select i1 %[[ISINF]], i32 %[[SIGN]], i32 0 |
| |
| res = __builtin_isinf_sign(LD); |
| // CHECK: %[[ABS:.*]] = call x86_fp80 @llvm.fabs.f80(x86_fp80 %[[ARG:.*]]) |
| // CHECK: %[[ISINF:.*]] = fcmp oeq x86_fp80 %[[ABS]], 0xK7FFF8000000000000000 |
| // CHECK: %[[BITCAST:.*]] = bitcast x86_fp80 %[[ARG]] to i80 |
| // CHECK: %[[ISNEG:.*]] = icmp slt i80 %[[BITCAST]], 0 |
| // CHECK: %[[SIGN:.*]] = select i1 %[[ISNEG]], i32 -1, i32 1 |
| // CHECK: select i1 %[[ISINF]], i32 %[[SIGN]], i32 0 |
| |
| res = __builtin_isfinite(F); |
| // CHECK: fcmp oeq float |
| // CHECK: call float @llvm.fabs.f32(float |
| // CHECK: fcmp une float {{.*}}, 0x7FF0000000000000 |
| // CHECK: and i1 |
| |
| res = __builtin_isnormal(F); |
| // CHECK: fcmp oeq float |
| // CHECK: call float @llvm.fabs.f32(float |
| // CHECK: fcmp ult float {{.*}}, 0x7FF0000000000000 |
| // CHECK: fcmp uge float {{.*}}, 0x3810000000000000 |
| // CHECK: and i1 |
| // CHECK: and i1 |
| } |
| |
| // CHECK-LABEL: define void @test_float_builtin_ops |
| void test_float_builtin_ops(float F, double D, long double LD) { |
| volatile float resf; |
| volatile double resd; |
| volatile long double resld; |
| |
| resf = __builtin_fmodf(F,F); |
| // CHECK: frem float |
| |
| resd = __builtin_fmod(D,D); |
| // CHECK: frem double |
| |
| resld = __builtin_fmodl(LD,LD); |
| // CHECK: frem x86_fp80 |
| |
| resf = __builtin_fabsf(F); |
| resd = __builtin_fabs(D); |
| resld = __builtin_fabsl(LD); |
| // CHECK: call float @llvm.fabs.f32(float |
| // CHECK: call double @llvm.fabs.f64(double |
| // CHECK: call x86_fp80 @llvm.fabs.f80(x86_fp80 |
| } |
| |
| // __builtin_longjmp isn't supported on all platforms, so only test it on X86. |
| #ifdef __x86_64__ |
| // CHECK-LABEL: define void @test_builtin_longjmp |
| void test_builtin_longjmp(void **buffer) { |
| // CHECK: [[BITCAST:%.*]] = bitcast |
| // CHECK-NEXT: call void @llvm.eh.sjlj.longjmp(i8* [[BITCAST]]) |
| __builtin_longjmp(buffer, 1); |
| // CHECK-NEXT: unreachable |
| } |
| #endif |
| |
| // CHECK-LABEL: define i64 @test_builtin_readcyclecounter |
| long long test_builtin_readcyclecounter() { |
| // CHECK: call i64 @llvm.readcyclecounter() |
| return __builtin_readcyclecounter(); |
| } |