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6ad9220067
These intrinsics exist in icc. They can be found on the Intel Intrinsics Guide website. All the backend support is in place to pattern match a load+bswap or a bswap+store pattern to the MOVBE instructions. So we just need to get the frontend to emit the correct IR. The pointer arguments in icc are declared as void so I had to jump through a packed struct to forcing a specific alignment on the load/store. Same trick we use in the unaligned vector load/store intrinsics Differential Revision: https://reviews.llvm.org/D52586 llvm-svn: 343343
50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +movbe -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-X64
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// RUN: %clang_cc1 -ffreestanding %s -triple=i686-apple-darwin -target-feature +movbe -emit-llvm -o - | FileCheck %s
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#include <immintrin.h>
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short test_loadbe_i16(const short *P) {
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// CHECK-LABEL: @test_loadbe_i16
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// CHECK: [[LOAD:%.*]] = load i16, i16* %{{.*}}, align 1
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// CHECK: call i16 @llvm.bswap.i16(i16 [[LOAD]])
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return _loadbe_i16(P);
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}
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void test_storebe_i16(short *P, short D) {
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// CHECK-LABEL: @test_storebe_i16
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// CHECK: [[DATA:%.*]] = call i16 @llvm.bswap.i16(i16 %{{.*}})
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// CHECK: store i16 [[DATA]], i16* %{{.*}}, align 1
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_storebe_i16(P, D);
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}
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int test_loadbe_i32(const int *P) {
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// CHECK-LABEL: @test_loadbe_i32
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// CHECK: [[LOAD:%.*]] = load i32, i32* %{{.*}}, align 1
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// CHECK: call i32 @llvm.bswap.i32(i32 [[LOAD]])
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return _loadbe_i32(P);
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}
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void test_storebe_i32(int *P, int D) {
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// CHECK-LABEL: @test_storebe_i32
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// CHECK: [[DATA:%.*]] = call i32 @llvm.bswap.i32(i32 %{{.*}})
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// CHECK: store i32 [[DATA]], i32* %{{.*}}, align 1
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_storebe_i32(P, D);
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}
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#ifdef __x86_64__
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long long test_loadbe_i64(const long long *P) {
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// CHECK-X64-LABEL: @test_loadbe_i64
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// CHECK-X64: [[LOAD:%.*]] = load i64, i64* %{{.*}}, align 1
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// CHECK-X64: call i64 @llvm.bswap.i64(i64 [[LOAD]])
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return _loadbe_i64(P);
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}
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void test_storebe_i64(long long *P, long long D) {
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// CHECK-X64-LABEL: @test_storebe_i64
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// CHECK-X64: [[DATA:%.*]] = call i64 @llvm.bswap.i64(i64 %{{.*}})
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// CHECK-X64: store i64 [[DATA]], i64* %{{.*}}, align 1
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_storebe_i64(P, D);
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}
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#endif
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