; 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, %r10 ; X64-AVX2-NEXT: movabsq $137438953471, %r8 # imm = 0x1FFFFFFFFF ; X64-AVX2-NEXT: andq %r8, %rsi ; X64-AVX2-NEXT: movl $37, %r9d ; X64-AVX2-NEXT: subq %rdx, %r9 ; X64-AVX2-NEXT: andq %r8, %r10 ; X64-AVX2-NEXT: movabsq $-2492803253203993461, %r11 # imm = 0xDD67C8A60DD67C8B ; X64-AVX2-NEXT: movq %r10, %rax ; X64-AVX2-NEXT: mulq %r11 ; X64-AVX2-NEXT: shrq $5, %rdx ; X64-AVX2-NEXT: leaq (%rdx,%rdx,8), %rax ; X64-AVX2-NEXT: leaq (%rdx,%rax,4), %rax ; X64-AVX2-NEXT: subq %rax, %r10 ; X64-AVX2-NEXT: movq %rdi, %rbx ; X64-AVX2-NEXT: movl %r10d, %ecx ; X64-AVX2-NEXT: shlq %cl, %rbx ; X64-AVX2-NEXT: andq %r9, %r8 ; X64-AVX2-NEXT: movq %r8, %rax ; X64-AVX2-NEXT: mulq %r11 ; X64-AVX2-NEXT: shrq $5, %rdx ; X64-AVX2-NEXT: leaq (%rdx,%rdx,8), %rax ; X64-AVX2-NEXT: leal (%rdx,%rax,4), %eax ; X64-AVX2-NEXT: subl %eax, %r9d ; X64-AVX2-NEXT: movl %r9d, %ecx ; X64-AVX2-NEXT: shrq %cl, %rsi ; X64-AVX2-NEXT: orq %rbx, %rsi ; X64-AVX2-NEXT: testq %r10, %r10 ; 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, %r10 ; X64-AVX2-NEXT: movabsq $137438953471, %r8 # imm = 0x1FFFFFFFFF ; X64-AVX2-NEXT: movq %rsi, %r11 ; X64-AVX2-NEXT: andq %r8, %r11 ; X64-AVX2-NEXT: movl $37, %r9d ; X64-AVX2-NEXT: subq %rdx, %r9 ; X64-AVX2-NEXT: andq %r8, %r10 ; X64-AVX2-NEXT: movabsq $-2492803253203993461, %rbx # imm = 0xDD67C8A60DD67C8B ; X64-AVX2-NEXT: movq %r10, %rax ; X64-AVX2-NEXT: mulq %rbx ; X64-AVX2-NEXT: shrq $5, %rdx ; X64-AVX2-NEXT: leaq (%rdx,%rdx,8), %rax ; X64-AVX2-NEXT: leaq (%rdx,%rax,4), %rax ; X64-AVX2-NEXT: subq %rax, %r10 ; X64-AVX2-NEXT: movl %r10d, %ecx ; X64-AVX2-NEXT: shrq %cl, %r11 ; X64-AVX2-NEXT: andq %r9, %r8 ; X64-AVX2-NEXT: movq %r8, %rax ; X64-AVX2-NEXT: mulq %rbx ; X64-AVX2-NEXT: shrq $5, %rdx ; X64-AVX2-NEXT: leaq (%rdx,%rdx,8), %rax ; X64-AVX2-NEXT: leal (%rdx,%rax,4), %eax ; X64-AVX2-NEXT: subl %eax, %r9d ; X64-AVX2-NEXT: movl %r9d, %ecx ; X64-AVX2-NEXT: shlq %cl, %rdi ; X64-AVX2-NEXT: orq %r11, %rdi ; X64-AVX2-NEXT: testq %r10, %r10 ; 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 }