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Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D156933
Files:
clang/lib/Headers/hlsl/hlsl_intrinsics.h
clang/test/CodeGenHLSL/builtins/bitreverse.hlsl
Index: clang/test/CodeGenHLSL/builtins/bitreverse.hlsl
===================================================================
--- /dev/null
+++ clang/test/CodeGenHLSL/builtins/bitreverse.hlsl
@@ -0,0 +1,167 @@
+// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -x hlsl -triple \
+// RUN: dxil-pc-shadermodel6.3-library %s -fnative-half-type \
+// RUN: -emit-llvm -disable-llvm-passes -O3 -o - | FileCheck %s
+// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -x hlsl -triple \
+// RUN: dxil-pc-shadermodel6.3-library %s -emit-llvm -disable-llvm-passes \
+// RUN: -D__HLSL_ENABLE_16_BIT -o - | FileCheck %s --check-prefix=NO_HALF
+
+#ifdef __HLSL_ENABLE_16_BIT
+// CHECK: define noundef i16 @
+// CHECK: call i16 @llvm.bitreverse.i16(
+// NO_HALF: define noundef i16 @"?test_bitreverse_short@@YAFF@Z"(
+// NO_HALF: call i16 @llvm.bitreverse.i16(
+int16_t test_bitreverse_short ( int16_t p0 ) {
+ return bitreverse ( p0 );
+}
+// CHECK: define noundef <2 x i16> @
+// CHECK: call <2 x i16> @llvm.bitreverse.v2i16(
+// NO_HALF: define noundef <2 x i16> @"?test_bitreverse_short2@@YAT?$__vector@F$01@__clang@@T12@@Z"(
+// NO_HALF: call <2 x i16> @llvm.bitreverse.v2i16(
+int16_t2 test_bitreverse_short2 ( int16_t2 p0 ) {
+ return bitreverse ( p0 );
+}
+// CHECK: define noundef <3 x i16> @
+// CHECK: call <3 x i16> @llvm.bitreverse.v3i16
+// NO_HALF: define noundef <3 x i16> @"?test_bitreverse_short3@@YAT?$__vector@F$02@__clang@@T12@@Z"(
+// NO_HALF: call <3 x i16> @llvm.bitreverse.v3i16(
+int16_t3 test_bitreverse_short3 ( int16_t3 p0 ) {
+ return bitreverse ( p0 );
+}
+// CHECK: define noundef <4 x i16> @
+// CHECK: call <4 x i16> @llvm.bitreverse.v4i16
+// NO_HALF: define noundef <4 x i16> @"?test_bitreverse_short4@@YAT?$__vector@F$03@__clang@@T12@@Z"(
+// NO_HALF: call <4 x i16> @llvm.bitreverse.v4i16(
+int16_t4 test_bitreverse_short4 ( int16_t4 p0 ) {
+ return bitreverse ( p0 );
+}
+
+// CHECK: define noundef i16 @
+// CHECK: call i16 @llvm.bitreverse.i16(
+// NO_HALF: define noundef i16 @"?test_bitreverse_ushort@@YAGG@Z"(
+// NO_HALF: call i16 @llvm.bitreverse.i16(
+uint16_t test_bitreverse_ushort ( uint16_t p0 ) {
+ return bitreverse ( p0 );
+}
+// CHECK: define noundef <2 x i16> @
+// CHECK: call <2 x i16> @llvm.bitreverse.v2i16
+// NO_HALF: define noundef <2 x i16> @"?test_bitreverse_ushort2@@YAT?$__vector@G$01@__clang@@T12@@Z"(
+// NO_HALF: call <2 x i16> @llvm.bitreverse.v2i16(
+uint16_t2 test_bitreverse_ushort2 ( uint16_t2 p0 ) {
+ return bitreverse ( p0 );
+}
+// CHECK: define noundef <3 x i16> @
+// CHECK: call <3 x i16> @llvm.bitreverse.v3i16
+// NO_HALF: define noundef <3 x i16> @"?test_bitreverse_ushort3@@YAT?$__vector@G$02@__clang@@T12@@Z"(
+// NO_HALF: call <3 x i16> @llvm.bitreverse.v3i16(
+uint16_t3 test_bitreverse_ushort3 ( uint16_t3 p0 ) {
+ return bitreverse ( p0 );
+}
+// CHECK: define noundef <4 x i16> @
+// CHECK: call <4 x i16> @llvm.bitreverse.v4i16
+// NO_HALF: define noundef <4 x i16> @"?test_bitreverse_ushort4@@YAT?$__vector@G$03@__clang@@T12@@Z"(
+// NO_HALF: call <4 x i16> @llvm.bitreverse.v4i16(
+uint16_t4 test_bitreverse_ushort4 ( uint16_t4 p0 ) {
+ return bitreverse ( p0 );
+}
+#endif
+
+// CHECK: define noundef i32 @
+// CHECK: call i32 @llvm.bitreverse.i32(
+int test_bitreverse_int(int p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <2 x i32> @
+// CHECK: call <2 x i32> @llvm.bitreverse.v2i32
+int2 test_bitreverse_int2(int2 p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <3 x i32> @
+// CHECK: call <3 x i32> @llvm.bitreverse.v3i32
+int3 test_bitreverse_int3(int3 p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <4 x i32> @
+// CHECK: call <4 x i32> @llvm.bitreverse.v4i32
+int4 test_bitreverse_int4(int4 p0)
+{
+ return bitreverse(p0);
+}
+
+// CHECK: define noundef i32 @
+// CHECK: call i32 @llvm.bitreverse.i32(
+int test_bitreverse_uint(uint p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <2 x i32> @
+// CHECK: call <2 x i32> @llvm.bitreverse.v2i32
+uint2 test_bitreverse_uint2(uint2 p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <3 x i32> @
+// CHECK: call <3 x i32> @llvm.bitreverse.v3i32
+uint3 test_bitreverse_uint3(uint3 p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <4 x i32> @
+// CHECK: call <4 x i32> @llvm.bitreverse.v4i32
+uint4 test_bitreverse_uint4(uint4 p0)
+{
+ return bitreverse(p0);
+}
+
+// CHECK: define noundef i64 @
+// CHECK: call i64 @llvm.bitreverse.i64(
+int64_t test_bitreverse_long(int64_t p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <2 x i64> @
+// CHECK: call <2 x i64> @llvm.bitreverse.v2i64
+int64_t2 test_bitreverse_long2(int64_t2 p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <3 x i64> @
+// CHECK: call <3 x i64> @llvm.bitreverse.v3i64
+int64_t3 test_bitreverse_long3(int64_t3 p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <4 x i64> @
+// CHECK: call <4 x i64> @llvm.bitreverse.v4i64
+int64_t4 test_bitreverse_long4(int64_t4 p0)
+{
+ return bitreverse(p0);
+}
+
+// CHECK: define noundef i64 @
+// CHECK: call i64 @llvm.bitreverse.i64(
+uint64_t test_bitreverse_long(uint64_t p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <2 x i64> @
+// CHECK: call <2 x i64> @llvm.bitreverse.v2i64
+uint64_t2 test_bitreverse_long2(uint64_t2 p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <3 x i64> @
+// CHECK: call <3 x i64> @llvm.bitreverse.v3i64
+uint64_t3 test_bitreverse_long3(uint64_t3 p0)
+{
+ return bitreverse(p0);
+}
+// CHECK: define noundef <4 x i64> @
+// CHECK: call <4 x i64> @llvm.bitreverse.v4i64
+uint64_t4 test_bitreverse_long4(uint64_t4 p0)
+{
+ return bitreverse(p0);
+}
+
Index: clang/lib/Headers/hlsl/hlsl_intrinsics.h
===================================================================
--- clang/lib/Headers/hlsl/hlsl_intrinsics.h
+++ clang/lib/Headers/hlsl/hlsl_intrinsics.h
@@ -476,5 +476,61 @@
__attribute__((clang_builtin_alias(__builtin_elementwise_min)))
double4 min(double4, double4);
+// bitreverse builtins
+#ifdef __HLSL_ENABLE_16_BIT
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int16_t bitreverse(int16_t);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int16_t2 bitreverse(int16_t2);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int16_t3 bitreverse(int16_t3);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int16_t4 bitreverse(int16_t4);
+
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint16_t bitreverse(uint16_t);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint16_t2 bitreverse(uint16_t2);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint16_t3 bitreverse(uint16_t3);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint16_t4 bitreverse(uint16_t4);
+#endif
+
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse))) int
+bitreverse(int);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int2 bitreverse(int2);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int3 bitreverse(int3);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int4 bitreverse(int4);
+
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint bitreverse(uint);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint2 bitreverse(uint2);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint3 bitreverse(uint3);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint4 bitreverse(uint4);
+
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int64_t bitreverse(int64_t);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int64_t2 bitreverse(int64_t2);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int64_t3 bitreverse(int64_t3);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+int64_t4 bitreverse(int64_t4);
+
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint64_t bitreverse(uint64_t);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint64_t2 bitreverse(uint64_t2);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint64_t3 bitreverse(uint64_t3);
+__attribute__((clang_builtin_alias(__builtin_elementwise_bitreverse)))
+uint64_t4 bitreverse(uint64_t4);
} // namespace hlsl
#endif //_HLSL_HLSL_INTRINSICS_H_
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