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c4d7c82c7f
LLVM supports applying conversion instructions to vectors of the same number of elements (fptrunc, fptosi, etc.) but there had been no way for a Clang user to cause such instructions to be generated when using builtin vector types. C-style casting on vectors is already defined in terms of bitcasts, and so cannot be used for these conversions as well (without leading to a very confusing set of semantics). As a result, this adds a __builtin_convertvector intrinsic (patterned after the OpenCL __builtin_astype intrinsic). This is intended to aid the creation of vector intrinsic headers that create generic IR instead of target-dependent intrinsics (in other words, this is a generic _mm_cvtepi32_ps). As noted in the documentation, the action of __builtin_convertvector is defined in terms of the action of a C-style cast on each vector element. llvm-svn: 190915
115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -target-cpu corei7-avx -emit-llvm %s -o - | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -target-cpu corei7-avx -emit-llvm -x c++ %s -o - | FileCheck %s
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typedef double vector8double __attribute__((__vector_size__(64)));
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typedef float vector8float __attribute__((__vector_size__(32)));
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typedef long vector8long __attribute__((__vector_size__(64)));
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typedef short vector8short __attribute__((__vector_size__(16)));
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typedef unsigned long vector8ulong __attribute__((__vector_size__(64)));
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typedef unsigned short vector8ushort __attribute__((__vector_size__(16)));
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#ifdef __cplusplus
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#define BOOL bool
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#else
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#define BOOL _Bool
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#endif
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typedef BOOL vector8bool __attribute__((__ext_vector_type__(8)));
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#ifdef __cplusplus
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extern "C" {
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#endif
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vector8float flt_trunc(vector8double x) {
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return __builtin_convertvector(x, vector8float);
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// CHECK-LABEL: @flt_trunc
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// CHECK: fptrunc <8 x double> %{{[^ ]}} to <8 x float>
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}
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vector8double flt_ext(vector8float x) {
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return __builtin_convertvector(x, vector8double);
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// CHECK-LABEL: @flt_ext
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// CHECK: fpext <8 x float> %{{[^ ]}} to <8 x double>
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}
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vector8bool flt_tobool(vector8float x) {
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return __builtin_convertvector(x, vector8bool);
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// CHECK-LABEL: @flt_tobool
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// CHECK-NOT: fptoui <8 x float> %{{[^ ]}} to <8 x i1>
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// CHECK: fcmp une <8 x float> %{{[^ ]}}, zeroinitializer
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}
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vector8long flt_tosi(vector8float x) {
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return __builtin_convertvector(x, vector8long);
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// CHECK-LABEL: @flt_tosi
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// CHECK: fptosi <8 x float> %{{[^ ]}} to <8 x i64>
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}
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vector8ulong flt_toui(vector8float x) {
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return __builtin_convertvector(x, vector8ulong);
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// CHECK-LABEL: @flt_toui
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// CHECK: fptoui <8 x float> %{{[^ ]}} to <8 x i64>
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}
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vector8ulong fltd_toui(vector8double x) {
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return __builtin_convertvector(x, vector8ulong);
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// CHECK-LABEL: @fltd_toui
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// CHECK: fptoui <8 x double> %{{[^ ]}} to <8 x i64>
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}
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vector8ulong int_zext(vector8ushort x) {
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return __builtin_convertvector(x, vector8ulong);
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// CHECK-LABEL: @int_zext
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// CHECK: zext <8 x i16> %{{[^ ]}} to <8 x i64>
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}
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vector8long int_sext(vector8short x) {
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return __builtin_convertvector(x, vector8long);
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// CHECK-LABEL: @int_sext
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// CHECK: sext <8 x i16> %{{[^ ]}} to <8 x i64>
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}
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vector8bool int_tobool(vector8short x) {
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return __builtin_convertvector(x, vector8bool);
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// CHECK-LABEL: @int_tobool
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// CHECK-NOT: trunc <8 x i16> %{{[^ ]}} to <8 x i1>
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// CHECK: icmp ne <8 x i16> %{{[^ ]}}, zeroinitializer
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}
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vector8float int_tofp(vector8short x) {
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return __builtin_convertvector(x, vector8float);
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// CHECK-LABEL: @int_tofp
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// CHECK: sitofp <8 x i16> %{{[^ ]}} to <8 x float>
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}
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vector8float uint_tofp(vector8ushort x) {
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return __builtin_convertvector(x, vector8float);
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// CHECK-LABEL: @uint_tofp
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// CHECK: uitofp <8 x i16> %{{[^ ]}} to <8 x float>
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}
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#ifdef __cplusplus
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}
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#endif
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#ifdef __cplusplus
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template<typename T>
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T int_toT(vector8long x) {
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return __builtin_convertvector(x, T);
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}
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extern "C" {
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vector8double int_toT_fp(vector8long x) {
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// CHECK-LABEL: @int_toT_fp
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// CHECK: sitofp <8 x i64> %{{[^ ]}} to <8 x double>
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return int_toT<vector8double>(x);
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}
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}
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#else
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vector8double int_toT_fp(vector8long x) {
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return __builtin_convertvector(x, vector8double);
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}
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#endif
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