diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/funnel-shift.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/funnel-shift.ll | 526 |
1 files changed, 526 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/funnel-shift.ll b/llvm/test/CodeGen/X86/funnel-shift.ll new file mode 100644 index 00000000000..87f4c3dcb9e --- /dev/null +++ b/llvm/test/CodeGen/X86/funnel-shift.ll @@ -0,0 +1,526 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=i686-- -mattr=sse2 | FileCheck %s --check-prefixes=ANY,X32-SSE2 +; RUN: llc < %s -mtriple=x86_64-- -mattr=avx2 | FileCheck %s --check-prefixes=ANY,X64-AVX2 + +declare i8 @llvm.fshl.i8(i8, i8, i8) +declare i16 @llvm.fshl.i16(i16, i16, i16) +declare i32 @llvm.fshl.i32(i32, i32, i32) +declare i64 @llvm.fshl.i64(i64, i64, i64) +declare <4 x i32> @llvm.fshl.v4i32(<4 x i32>, <4 x i32>, <4 x i32>) + +declare i8 @llvm.fshr.i8(i8, i8, i8) +declare i16 @llvm.fshr.i16(i16, i16, i16) +declare i32 @llvm.fshr.i32(i32, i32, i32) +declare i64 @llvm.fshr.i64(i64, i64, i64) +declare <4 x i32> @llvm.fshr.v4i32(<4 x i32>, <4 x i32>, <4 x i32>) + +; General case - all operands can be variables - x86 has shld, but that's not matched. + +define i32 @fshl_i32(i32 %x, i32 %y, i32 %z) nounwind { +; X32-SSE2-LABEL: fshl_i32: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: pushl %edi +; X32-SSE2-NEXT: pushl %esi +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %esi +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %edi +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %edx +; X32-SSE2-NEXT: movl $32, %ecx +; X32-SSE2-NEXT: subl %edx, %ecx +; X32-SSE2-NEXT: # kill: def $cl killed $cl killed $ecx +; X32-SSE2-NEXT: shrl %cl, %edi +; X32-SSE2-NEXT: andl $31, %edx +; X32-SSE2-NEXT: movl %esi, %eax +; X32-SSE2-NEXT: movl %edx, %ecx +; X32-SSE2-NEXT: shll %cl, %eax +; X32-SSE2-NEXT: orl %edi, %eax +; X32-SSE2-NEXT: testl %edx, %edx +; X32-SSE2-NEXT: cmovel %esi, %eax +; X32-SSE2-NEXT: popl %esi +; X32-SSE2-NEXT: popl %edi +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshl_i32: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: movl $32, %ecx +; X64-AVX2-NEXT: subl %edx, %ecx +; X64-AVX2-NEXT: # kill: def $cl killed $cl killed $ecx +; X64-AVX2-NEXT: shrl %cl, %esi +; X64-AVX2-NEXT: andl $31, %edx +; X64-AVX2-NEXT: movl %edi, %eax +; X64-AVX2-NEXT: movl %edx, %ecx +; X64-AVX2-NEXT: shll %cl, %eax +; X64-AVX2-NEXT: orl %esi, %eax +; X64-AVX2-NEXT: testl %edx, %edx +; X64-AVX2-NEXT: cmovel %edi, %eax +; X64-AVX2-NEXT: retq + %f = call i32 @llvm.fshl.i32(i32 %x, i32 %y, i32 %z) + ret i32 %f +} + +; Verify that weird types are minimally supported. +declare i37 @llvm.fshl.i37(i37, i37, i37) +define i37 @fshl_i37(i37 %x, i37 %y, i37 %z) nounwind { +; X32-SSE2-LABEL: fshl_i37: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: pushl %ebp +; X32-SSE2-NEXT: pushl %ebx +; X32-SSE2-NEXT: pushl %edi +; X32-SSE2-NEXT: pushl %esi +; X32-SSE2-NEXT: subl $8, %esp +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %edi +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %esi +; X32-SSE2-NEXT: andl $31, %esi +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ebx +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: movl %eax, %ebp +; X32-SSE2-NEXT: andl $31, %ebp +; X32-SSE2-NEXT: movl $37, %ecx +; X32-SSE2-NEXT: subl %ebx, %ecx +; X32-SSE2-NEXT: movl $0, %edx +; X32-SSE2-NEXT: sbbl %eax, %edx +; X32-SSE2-NEXT: andl $31, %edx +; X32-SSE2-NEXT: pushl $0 +; X32-SSE2-NEXT: pushl $37 +; X32-SSE2-NEXT: pushl %edx +; X32-SSE2-NEXT: pushl %ecx +; X32-SSE2-NEXT: calll __umoddi3 +; X32-SSE2-NEXT: addl $16, %esp +; X32-SSE2-NEXT: movl %eax, (%esp) # 4-byte Spill +; X32-SSE2-NEXT: movl %eax, %ecx +; X32-SSE2-NEXT: shrdl %cl, %esi, %edi +; X32-SSE2-NEXT: pushl $0 +; X32-SSE2-NEXT: pushl $37 +; X32-SSE2-NEXT: pushl %ebp +; X32-SSE2-NEXT: pushl %ebx +; X32-SSE2-NEXT: calll __umoddi3 +; X32-SSE2-NEXT: addl $16, %esp +; X32-SSE2-NEXT: movl %edx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %edx +; X32-SSE2-NEXT: movl %edx, %ebp +; X32-SSE2-NEXT: movl %eax, %ecx +; X32-SSE2-NEXT: shll %cl, %ebp +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ebx +; X32-SSE2-NEXT: shldl %cl, %edx, %ebx +; X32-SSE2-NEXT: testb $32, %al +; X32-SSE2-NEXT: cmovnel %ebp, %ebx +; X32-SSE2-NEXT: movl $0, %edx +; X32-SSE2-NEXT: cmovnel %edx, %ebp +; X32-SSE2-NEXT: movl (%esp), %ecx # 4-byte Reload +; X32-SSE2-NEXT: shrl %cl, %esi +; X32-SSE2-NEXT: testb $32, %cl +; X32-SSE2-NEXT: cmovnel %esi, %edi +; X32-SSE2-NEXT: cmovnel %edx, %esi +; X32-SSE2-NEXT: orl %ebx, %esi +; X32-SSE2-NEXT: orl %ebp, %edi +; X32-SSE2-NEXT: orl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Folded Spill +; X32-SSE2-NEXT: cmovel {{[0-9]+}}(%esp), %edi +; X32-SSE2-NEXT: cmovel {{[0-9]+}}(%esp), %esi +; X32-SSE2-NEXT: movl %edi, %eax +; X32-SSE2-NEXT: movl %esi, %edx +; X32-SSE2-NEXT: addl $8, %esp +; X32-SSE2-NEXT: popl %esi +; X32-SSE2-NEXT: popl %edi +; X32-SSE2-NEXT: popl %ebx +; X32-SSE2-NEXT: popl %ebp +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshl_i37: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: pushq %rbx +; X64-AVX2-NEXT: movq %rdx, %r9 +; X64-AVX2-NEXT: movabsq $137438953471, %r10 # imm = 0x1FFFFFFFFF +; X64-AVX2-NEXT: andq %r10, %rsi +; X64-AVX2-NEXT: movl $37, %r8d +; X64-AVX2-NEXT: subq %rdx, %r8 +; X64-AVX2-NEXT: andq %r10, %r9 +; X64-AVX2-NEXT: movabsq $-2492803253203993461, %r11 # imm = 0xDD67C8A60DD67C8B +; X64-AVX2-NEXT: movq %r9, %rax +; X64-AVX2-NEXT: mulq %r11 +; X64-AVX2-NEXT: shrq $5, %rdx +; X64-AVX2-NEXT: imulq $37, %rdx, %rax +; X64-AVX2-NEXT: subq %rax, %r9 +; X64-AVX2-NEXT: movq %rdi, %rbx +; X64-AVX2-NEXT: movl %r9d, %ecx +; X64-AVX2-NEXT: shlq %cl, %rbx +; X64-AVX2-NEXT: movq %r8, %rax +; X64-AVX2-NEXT: andq %r10, %rax +; X64-AVX2-NEXT: mulq %r11 +; X64-AVX2-NEXT: shrl $5, %edx +; X64-AVX2-NEXT: imull $37, %edx, %eax +; X64-AVX2-NEXT: subl %eax, %r8d +; X64-AVX2-NEXT: movl %r8d, %ecx +; X64-AVX2-NEXT: shrq %cl, %rsi +; X64-AVX2-NEXT: orq %rbx, %rsi +; X64-AVX2-NEXT: testq %r9, %r9 +; X64-AVX2-NEXT: cmoveq %rdi, %rsi +; X64-AVX2-NEXT: movq %rsi, %rax +; X64-AVX2-NEXT: popq %rbx +; X64-AVX2-NEXT: retq + %f = call i37 @llvm.fshl.i37(i37 %x, i37 %y, i37 %z) + ret i37 %f +} + +; extract(concat(0b1110000, 0b1111111) << 2) = 0b1000011 + +declare i7 @llvm.fshl.i7(i7, i7, i7) +define i7 @fshl_i7_const_fold() { +; ANY-LABEL: fshl_i7_const_fold: +; ANY: # %bb.0: +; ANY-NEXT: movb $67, %al +; ANY-NEXT: ret{{[l|q]}} + %f = call i7 @llvm.fshl.i7(i7 112, i7 127, i7 2) + ret i7 %f +} + +; With constant shift amount, this is 'shld' with constant operand. + +define i32 @fshl_i32_const_shift(i32 %x, i32 %y) nounwind { +; X32-SSE2-LABEL: fshl_i32_const_shift: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: shldl $9, %ecx, %eax +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshl_i32_const_shift: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: shldl $9, %esi, %edi +; X64-AVX2-NEXT: movl %edi, %eax +; X64-AVX2-NEXT: retq + %f = call i32 @llvm.fshl.i32(i32 %x, i32 %y, i32 9) + ret i32 %f +} + +; Check modulo math on shift amount. + +define i32 @fshl_i32_const_overshift(i32 %x, i32 %y) nounwind { +; X32-SSE2-LABEL: fshl_i32_const_overshift: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: shldl $9, %ecx, %eax +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshl_i32_const_overshift: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: shldl $9, %esi, %edi +; X64-AVX2-NEXT: movl %edi, %eax +; X64-AVX2-NEXT: retq + %f = call i32 @llvm.fshl.i32(i32 %x, i32 %y, i32 41) + ret i32 %f +} + +; 64-bit should also work. + +define i64 @fshl_i64_const_overshift(i64 %x, i64 %y) nounwind { +; X32-SSE2-LABEL: fshl_i64_const_overshift: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %edx +; X32-SSE2-NEXT: shldl $9, %ecx, %edx +; X32-SSE2-NEXT: shrdl $23, %ecx, %eax +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshl_i64_const_overshift: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: shldq $41, %rsi, %rdi +; X64-AVX2-NEXT: movq %rdi, %rax +; X64-AVX2-NEXT: retq + %f = call i64 @llvm.fshl.i64(i64 %x, i64 %y, i64 105) + ret i64 %f +} + +; This should work without any node-specific logic. + +define i8 @fshl_i8_const_fold() nounwind { +; ANY-LABEL: fshl_i8_const_fold: +; ANY: # %bb.0: +; ANY-NEXT: movb $-128, %al +; ANY-NEXT: ret{{[l|q]}} + %f = call i8 @llvm.fshl.i8(i8 255, i8 0, i8 7) + ret i8 %f +} + +; Repeat everything for funnel shift right. + +; General case - all operands can be variables - x86 has 'shrd', but this doesn't match. + +define i32 @fshr_i32(i32 %x, i32 %y, i32 %z) nounwind { +; X32-SSE2-LABEL: fshr_i32: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: pushl %ebx +; X32-SSE2-NEXT: pushl %edi +; X32-SSE2-NEXT: pushl %esi +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %esi +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %edx +; X32-SSE2-NEXT: movl $32, %ebx +; X32-SSE2-NEXT: subl %edx, %ebx +; X32-SSE2-NEXT: andl $31, %edx +; X32-SSE2-NEXT: movl %esi, %edi +; X32-SSE2-NEXT: movl %edx, %ecx +; X32-SSE2-NEXT: shrl %cl, %edi +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: movl %ebx, %ecx +; X32-SSE2-NEXT: shll %cl, %eax +; X32-SSE2-NEXT: orl %edi, %eax +; X32-SSE2-NEXT: testl %edx, %edx +; X32-SSE2-NEXT: cmovel %esi, %eax +; X32-SSE2-NEXT: popl %esi +; X32-SSE2-NEXT: popl %edi +; X32-SSE2-NEXT: popl %ebx +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshr_i32: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: movl $32, %r8d +; X64-AVX2-NEXT: subl %edx, %r8d +; X64-AVX2-NEXT: andl $31, %edx +; X64-AVX2-NEXT: movl %esi, %eax +; X64-AVX2-NEXT: movl %edx, %ecx +; X64-AVX2-NEXT: shrl %cl, %eax +; X64-AVX2-NEXT: movl %r8d, %ecx +; X64-AVX2-NEXT: shll %cl, %edi +; X64-AVX2-NEXT: orl %eax, %edi +; X64-AVX2-NEXT: testl %edx, %edx +; X64-AVX2-NEXT: cmovel %esi, %edi +; X64-AVX2-NEXT: movl %edi, %eax +; X64-AVX2-NEXT: retq + %f = call i32 @llvm.fshr.i32(i32 %x, i32 %y, i32 %z) + ret i32 %f +} + +; Verify that weird types are minimally supported. +declare i37 @llvm.fshr.i37(i37, i37, i37) +define i37 @fshr_i37(i37 %x, i37 %y, i37 %z) nounwind { +; X32-SSE2-LABEL: fshr_i37: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: pushl %ebp +; X32-SSE2-NEXT: pushl %ebx +; X32-SSE2-NEXT: pushl %edi +; X32-SSE2-NEXT: pushl %esi +; X32-SSE2-NEXT: pushl %eax +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %esi +; X32-SSE2-NEXT: andl $31, %esi +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ebp +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: andl $31, %eax +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %edi +; X32-SSE2-NEXT: pushl $0 +; X32-SSE2-NEXT: pushl $37 +; X32-SSE2-NEXT: pushl %eax +; X32-SSE2-NEXT: pushl %ebp +; X32-SSE2-NEXT: calll __umoddi3 +; X32-SSE2-NEXT: addl $16, %esp +; X32-SSE2-NEXT: movl %eax, %ebx +; X32-SSE2-NEXT: movl %edx, (%esp) # 4-byte Spill +; X32-SSE2-NEXT: movl $37, %eax +; X32-SSE2-NEXT: subl %ebp, %eax +; X32-SSE2-NEXT: movl $0, %edx +; X32-SSE2-NEXT: sbbl {{[0-9]+}}(%esp), %edx +; X32-SSE2-NEXT: andl $31, %edx +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ebp +; X32-SSE2-NEXT: movl %ebx, %ecx +; X32-SSE2-NEXT: shrdl %cl, %esi, %ebp +; X32-SSE2-NEXT: pushl $0 +; X32-SSE2-NEXT: pushl $37 +; X32-SSE2-NEXT: pushl %edx +; X32-SSE2-NEXT: pushl %eax +; X32-SSE2-NEXT: calll __umoddi3 +; X32-SSE2-NEXT: addl $16, %esp +; X32-SSE2-NEXT: movl %eax, %ecx +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %edx +; X32-SSE2-NEXT: movl %edx, %eax +; X32-SSE2-NEXT: shll %cl, %eax +; X32-SSE2-NEXT: shldl %cl, %edx, %edi +; X32-SSE2-NEXT: testb $32, %cl +; X32-SSE2-NEXT: cmovnel %eax, %edi +; X32-SSE2-NEXT: movl $0, %edx +; X32-SSE2-NEXT: cmovnel %edx, %eax +; X32-SSE2-NEXT: movl %ebx, %ecx +; X32-SSE2-NEXT: shrl %cl, %esi +; X32-SSE2-NEXT: testb $32, %bl +; X32-SSE2-NEXT: cmovnel %esi, %ebp +; X32-SSE2-NEXT: cmovnel %edx, %esi +; X32-SSE2-NEXT: orl %edi, %esi +; X32-SSE2-NEXT: orl %eax, %ebp +; X32-SSE2-NEXT: orl %ebx, (%esp) # 4-byte Folded Spill +; X32-SSE2-NEXT: cmovel {{[0-9]+}}(%esp), %ebp +; X32-SSE2-NEXT: cmovel {{[0-9]+}}(%esp), %esi +; X32-SSE2-NEXT: movl %ebp, %eax +; X32-SSE2-NEXT: movl %esi, %edx +; X32-SSE2-NEXT: addl $4, %esp +; X32-SSE2-NEXT: popl %esi +; X32-SSE2-NEXT: popl %edi +; X32-SSE2-NEXT: popl %ebx +; X32-SSE2-NEXT: popl %ebp +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshr_i37: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: pushq %rbx +; X64-AVX2-NEXT: movq %rdx, %r9 +; X64-AVX2-NEXT: movabsq $137438953471, %r11 # imm = 0x1FFFFFFFFF +; X64-AVX2-NEXT: movq %rsi, %r10 +; X64-AVX2-NEXT: andq %r11, %r10 +; X64-AVX2-NEXT: movl $37, %r8d +; X64-AVX2-NEXT: subq %rdx, %r8 +; X64-AVX2-NEXT: andq %r11, %r9 +; X64-AVX2-NEXT: movabsq $-2492803253203993461, %rbx # imm = 0xDD67C8A60DD67C8B +; X64-AVX2-NEXT: movq %r9, %rax +; X64-AVX2-NEXT: mulq %rbx +; X64-AVX2-NEXT: shrq $5, %rdx +; X64-AVX2-NEXT: imulq $37, %rdx, %rax +; X64-AVX2-NEXT: subq %rax, %r9 +; X64-AVX2-NEXT: movl %r9d, %ecx +; X64-AVX2-NEXT: shrq %cl, %r10 +; X64-AVX2-NEXT: movq %r8, %rax +; X64-AVX2-NEXT: andq %r11, %rax +; X64-AVX2-NEXT: mulq %rbx +; X64-AVX2-NEXT: shrl $5, %edx +; X64-AVX2-NEXT: imull $37, %edx, %eax +; X64-AVX2-NEXT: subl %eax, %r8d +; X64-AVX2-NEXT: movl %r8d, %ecx +; X64-AVX2-NEXT: shlq %cl, %rdi +; X64-AVX2-NEXT: orq %r10, %rdi +; X64-AVX2-NEXT: testq %r9, %r9 +; X64-AVX2-NEXT: cmoveq %rsi, %rdi +; X64-AVX2-NEXT: movq %rdi, %rax +; X64-AVX2-NEXT: popq %rbx +; X64-AVX2-NEXT: retq + %f = call i37 @llvm.fshr.i37(i37 %x, i37 %y, i37 %z) + ret i37 %f +} + +; extract(concat(0b1110000, 0b1111111) >> 2) = 0b0011111 + +declare i7 @llvm.fshr.i7(i7, i7, i7) +define i7 @fshr_i7_const_fold() nounwind { +; ANY-LABEL: fshr_i7_const_fold: +; ANY: # %bb.0: +; ANY-NEXT: movb $31, %al +; ANY-NEXT: ret{{[l|q]}} + %f = call i7 @llvm.fshr.i7(i7 112, i7 127, i7 2) + ret i7 %f +} + +; With constant shift amount, this is 'shrd' or 'shld'. + +define i32 @fshr_i32_const_shift(i32 %x, i32 %y) nounwind { +; X32-SSE2-LABEL: fshr_i32_const_shift: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: shldl $23, %ecx, %eax +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshr_i32_const_shift: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: shldl $23, %esi, %edi +; X64-AVX2-NEXT: movl %edi, %eax +; X64-AVX2-NEXT: retq + %f = call i32 @llvm.fshr.i32(i32 %x, i32 %y, i32 9) + ret i32 %f +} + +; Check modulo math on shift amount. 41-32=9, but right-shift became left, so 32-9=23. + +define i32 @fshr_i32_const_overshift(i32 %x, i32 %y) nounwind { +; X32-SSE2-LABEL: fshr_i32_const_overshift: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: shldl $23, %ecx, %eax +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshr_i32_const_overshift: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: shldl $23, %esi, %edi +; X64-AVX2-NEXT: movl %edi, %eax +; X64-AVX2-NEXT: retq + %f = call i32 @llvm.fshr.i32(i32 %x, i32 %y, i32 41) + ret i32 %f +} + +; 64-bit should also work. 105-64 = 41, but right-shift became left, so 64-41=23. + +define i64 @fshr_i64_const_overshift(i64 %x, i64 %y) nounwind { +; X32-SSE2-LABEL: fshr_i64_const_overshift: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %edx +; X32-SSE2-NEXT: shrdl $9, %ecx, %eax +; X32-SSE2-NEXT: shldl $23, %ecx, %edx +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshr_i64_const_overshift: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: shldq $23, %rsi, %rdi +; X64-AVX2-NEXT: movq %rdi, %rax +; X64-AVX2-NEXT: retq + %f = call i64 @llvm.fshr.i64(i64 %x, i64 %y, i64 105) + ret i64 %f +} + +; This should work without any node-specific logic. + +define i8 @fshr_i8_const_fold() nounwind { +; ANY-LABEL: fshr_i8_const_fold: +; ANY: # %bb.0: +; ANY-NEXT: movb $-2, %al +; ANY-NEXT: ret{{[l|q]}} + %f = call i8 @llvm.fshr.i8(i8 255, i8 0, i8 7) + ret i8 %f +} + +define i32 @fshl_i32_shift_by_bitwidth(i32 %x, i32 %y) nounwind { +; X32-SSE2-LABEL: fshl_i32_shift_by_bitwidth: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshl_i32_shift_by_bitwidth: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: movl %edi, %eax +; X64-AVX2-NEXT: retq + %f = call i32 @llvm.fshl.i32(i32 %x, i32 %y, i32 32) + ret i32 %f +} + +define i32 @fshr_i32_shift_by_bitwidth(i32 %x, i32 %y) nounwind { +; X32-SSE2-LABEL: fshr_i32_shift_by_bitwidth: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshr_i32_shift_by_bitwidth: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: movl %esi, %eax +; X64-AVX2-NEXT: retq + %f = call i32 @llvm.fshr.i32(i32 %x, i32 %y, i32 32) + ret i32 %f +} + +define <4 x i32> @fshl_v4i32_shift_by_bitwidth(<4 x i32> %x, <4 x i32> %y) nounwind { +; ANY-LABEL: fshl_v4i32_shift_by_bitwidth: +; ANY: # %bb.0: +; ANY-NEXT: ret{{[l|q]}} + %f = call <4 x i32> @llvm.fshl.v4i32(<4 x i32> %x, <4 x i32> %y, <4 x i32> <i32 32, i32 32, i32 32, i32 32>) + ret <4 x i32> %f +} + +define <4 x i32> @fshr_v4i32_shift_by_bitwidth(<4 x i32> %x, <4 x i32> %y) nounwind { +; X32-SSE2-LABEL: fshr_v4i32_shift_by_bitwidth: +; X32-SSE2: # %bb.0: +; X32-SSE2-NEXT: movaps %xmm1, %xmm0 +; X32-SSE2-NEXT: retl +; +; X64-AVX2-LABEL: fshr_v4i32_shift_by_bitwidth: +; X64-AVX2: # %bb.0: +; X64-AVX2-NEXT: vmovaps %xmm1, %xmm0 +; X64-AVX2-NEXT: retq + %f = call <4 x i32> @llvm.fshr.v4i32(<4 x i32> %x, <4 x i32> %y, <4 x i32> <i32 32, i32 32, i32 32, i32 32>) + ret <4 x i32> %f +} + |

