| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefixes=CHECK,SSE |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefixes=CHECK,SSE |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.2 | FileCheck %s --check-prefixes=CHECK,SSE |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefixes=CHECK,AVX |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefixes=CHECK,AVX |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f | FileCheck %s --check-prefixes=CHECK,AVX |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw | FileCheck %s --check-prefixes=CHECK,AVX |
| |
| declare i32 @llvm.ssub.sat.i32 (i32, i32) |
| declare i64 @llvm.ssub.sat.i64 (i64, i64) |
| declare <8 x i16> @llvm.ssub.sat.v8i16(<8 x i16>, <8 x i16>) |
| |
| ; fold (ssub_sat x, undef) -> 0 |
| define i32 @combine_undef_i32(i32 %a0) { |
| ; CHECK-LABEL: combine_undef_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: xorl %eax, %eax |
| ; CHECK-NEXT: retq |
| %res = call i32 @llvm.ssub.sat.i32(i32 %a0, i32 undef) |
| ret i32 %res |
| } |
| |
| define <8 x i16> @combine_undef_v8i16(<8 x i16> %a0) { |
| ; SSE-LABEL: combine_undef_v8i16: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: xorps %xmm0, %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX-LABEL: combine_undef_v8i16: |
| ; AVX: # %bb.0: |
| ; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0 |
| ; AVX-NEXT: retq |
| %res = call <8 x i16> @llvm.ssub.sat.v8i16(<8 x i16> undef, <8 x i16> %a0) |
| ret <8 x i16> %res |
| } |
| |
| ; fold (ssub_sat c1, c2) -> c3 |
| define i32 @combine_constfold_i32() { |
| ; CHECK-LABEL: combine_constfold_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: movl $-2147483547, %eax # imm = 0x80000065 |
| ; CHECK-NEXT: retq |
| %res = call i32 @llvm.ssub.sat.i32(i32 100, i32 2147483647) |
| ret i32 %res |
| } |
| |
| define <8 x i16> @combine_constfold_v8i16() { |
| ; SSE-LABEL: combine_constfold_v8i16: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: movaps {{.*#+}} xmm0 = [65535,2,254,0,65534,65282,32786,2] |
| ; SSE-NEXT: retq |
| ; |
| ; AVX-LABEL: combine_constfold_v8i16: |
| ; AVX: # %bb.0: |
| ; AVX-NEXT: vmovaps {{.*#+}} xmm0 = [65535,2,254,0,65534,65282,32786,2] |
| ; AVX-NEXT: retq |
| %res = call <8 x i16> @llvm.ssub.sat.v8i16(<8 x i16> <i16 0, i16 1, i16 255, i16 65535, i16 -1, i16 -255, i16 -32760, i16 1>, <8 x i16> <i16 1, i16 65535, i16 1, i16 65535, i16 1, i16 65535, i16 -10, i16 65535>) |
| ret <8 x i16> %res |
| } |
| |
| define <8 x i16> @combine_constfold_undef_v8i16() { |
| ; SSE-LABEL: combine_constfold_undef_v8i16: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: movaps {{.*#+}} xmm0 = [0,0,0,0,65534,65282,32786,2] |
| ; SSE-NEXT: retq |
| ; |
| ; AVX-LABEL: combine_constfold_undef_v8i16: |
| ; AVX: # %bb.0: |
| ; AVX-NEXT: vmovaps {{.*#+}} xmm0 = [0,0,0,0,65534,65282,32786,2] |
| ; AVX-NEXT: retq |
| %res = call <8 x i16> @llvm.ssub.sat.v8i16(<8 x i16> <i16 undef, i16 1, i16 undef, i16 65535, i16 -1, i16 -255, i16 -32760, i16 1>, <8 x i16> <i16 1, i16 undef, i16 undef, i16 65535, i16 1, i16 65535, i16 -10, i16 65535>) |
| ret <8 x i16> %res |
| } |
| |
| ; fold (ssub_sat x, 0) -> x |
| define i32 @combine_zero_i32(i32 %a0) { |
| ; CHECK-LABEL: combine_zero_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: movl %edi, %eax |
| ; CHECK-NEXT: retq |
| %1 = call i32 @llvm.ssub.sat.i32(i32 %a0, i32 0) |
| ret i32 %1 |
| } |
| |
| define <8 x i16> @combine_zero_v8i16(<8 x i16> %a0) { |
| ; CHECK-LABEL: combine_zero_v8i16: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: retq |
| %1 = call <8 x i16> @llvm.ssub.sat.v8i16(<8 x i16> %a0, <8 x i16> zeroinitializer) |
| ret <8 x i16> %1 |
| } |
| |
| ; fold (ssub_sat x, x) -> 0 |
| define i32 @combine_self_i32(i32 %a0) { |
| ; CHECK-LABEL: combine_self_i32: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: xorl %eax, %eax |
| ; CHECK-NEXT: retq |
| %1 = call i32 @llvm.ssub.sat.i32(i32 %a0, i32 %a0) |
| ret i32 %1 |
| } |
| |
| define <8 x i16> @combine_self_v8i16(<8 x i16> %a0) { |
| ; SSE-LABEL: combine_self_v8i16: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: xorps %xmm0, %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX-LABEL: combine_self_v8i16: |
| ; AVX: # %bb.0: |
| ; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0 |
| ; AVX-NEXT: retq |
| %1 = call <8 x i16> @llvm.ssub.sat.v8i16(<8 x i16> %a0, <8 x i16> %a0) |
| ret <8 x i16> %1 |
| } |