; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefixes=CHECK,X86,X86-FAST ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+slow-shld | FileCheck %s --check-prefixes=CHECK,X86,X86-SLOW ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=CHECK,X64,X64-FAST ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+slow-shld | FileCheck %s --check-prefixes=CHECK,X64,X64-SLOW declare i8 @llvm.fshl.i8(i8, i8, i8) nounwind readnone declare i16 @llvm.fshl.i16(i16, i16, i16) nounwind readnone declare i32 @llvm.fshl.i32(i32, i32, i32) nounwind readnone declare i64 @llvm.fshl.i64(i64, i64, i64) nounwind readnone ; ; Variable Funnel Shift ; define i8 @var_shift_i8(i8 %x, i8 %y, i8 %z) nounwind { ; X86-LABEL: var_shift_i8: ; X86: # %bb.0: ; X86-NEXT: movb {{[0-9]+}}(%esp), %ah ; X86-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NEXT: andb $7, %dl ; X86-NEXT: movb %al, %ch ; X86-NEXT: movb %dl, %cl ; X86-NEXT: shlb %cl, %ch ; X86-NEXT: movb $8, %cl ; X86-NEXT: subb %dl, %cl ; X86-NEXT: shrb %cl, %ah ; X86-NEXT: testb %dl, %dl ; X86-NEXT: je .LBB0_2 ; X86-NEXT: # %bb.1: ; X86-NEXT: orb %ah, %ch ; X86-NEXT: movb %ch, %al ; X86-NEXT: .LBB0_2: ; X86-NEXT: retl ; ; X64-LABEL: var_shift_i8: ; X64: # %bb.0: ; X64-NEXT: andb $7, %dl ; X64-NEXT: movl %edi, %eax ; X64-NEXT: movl %edx, %ecx ; X64-NEXT: shlb %cl, %al ; X64-NEXT: movb $8, %cl ; X64-NEXT: subb %dl, %cl ; X64-NEXT: shrb %cl, %sil ; X64-NEXT: orb %al, %sil ; X64-NEXT: movzbl %sil, %eax ; X64-NEXT: testb %dl, %dl ; X64-NEXT: cmovel %edi, %eax ; X64-NEXT: # kill: def $al killed $al killed $eax ; X64-NEXT: retq %tmp = tail call i8 @llvm.fshl.i8(i8 %x, i8 %y, i8 %z) ret i8 %tmp } define i16 @var_shift_i16(i16 %x, i16 %y, i16 %z) nounwind { ; X86-FAST-LABEL: var_shift_i16: ; X86-FAST: # %bb.0: ; X86-FAST-NEXT: movzwl {{[0-9]+}}(%esp), %edx ; X86-FAST-NEXT: movzwl {{[0-9]+}}(%esp), %eax ; X86-FAST-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-FAST-NEXT: andb $15, %cl ; X86-FAST-NEXT: shldw %cl, %dx, %ax ; X86-FAST-NEXT: retl ; ; X86-SLOW-LABEL: var_shift_i16: ; X86-SLOW: # %bb.0: ; X86-SLOW-NEXT: pushl %edi ; X86-SLOW-NEXT: pushl %esi ; X86-SLOW-NEXT: movzwl {{[0-9]+}}(%esp), %esi ; X86-SLOW-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-SLOW-NEXT: andb $15, %dl ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-SLOW-NEXT: movl %eax, %edi ; X86-SLOW-NEXT: movl %edx, %ecx ; X86-SLOW-NEXT: shll %cl, %edi ; X86-SLOW-NEXT: movb $16, %cl ; X86-SLOW-NEXT: subb %dl, %cl ; X86-SLOW-NEXT: shrl %cl, %esi ; X86-SLOW-NEXT: testb %dl, %dl ; X86-SLOW-NEXT: je .LBB1_2 ; X86-SLOW-NEXT: # %bb.1: ; X86-SLOW-NEXT: orl %esi, %edi ; X86-SLOW-NEXT: movl %edi, %eax ; X86-SLOW-NEXT: .LBB1_2: ; X86-SLOW-NEXT: # kill: def $ax killed $ax killed $eax ; X86-SLOW-NEXT: popl %esi ; X86-SLOW-NEXT: popl %edi ; X86-SLOW-NEXT: retl ; ; X64-FAST-LABEL: var_shift_i16: ; X64-FAST: # %bb.0: ; X64-FAST-NEXT: movl %edx, %ecx ; X64-FAST-NEXT: movl %edi, %eax ; X64-FAST-NEXT: andb $15, %cl ; X64-FAST-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-FAST-NEXT: shldw %cl, %si, %ax ; X64-FAST-NEXT: # kill: def $ax killed $ax killed $eax ; X64-FAST-NEXT: retq ; ; X64-SLOW-LABEL: var_shift_i16: ; X64-SLOW: # %bb.0: ; X64-SLOW-NEXT: movzwl %si, %eax ; X64-SLOW-NEXT: andb $15, %dl ; X64-SLOW-NEXT: movl %edi, %esi ; X64-SLOW-NEXT: movl %edx, %ecx ; X64-SLOW-NEXT: shll %cl, %esi ; X64-SLOW-NEXT: movb $16, %cl ; X64-SLOW-NEXT: subb %dl, %cl ; X64-SLOW-NEXT: shrl %cl, %eax ; X64-SLOW-NEXT: orl %esi, %eax ; X64-SLOW-NEXT: testb %dl, %dl ; X64-SLOW-NEXT: cmovel %edi, %eax ; X64-SLOW-NEXT: # kill: def $ax killed $ax killed $eax ; X64-SLOW-NEXT: retq %tmp = tail call i16 @llvm.fshl.i16(i16 %x, i16 %y, i16 %z) ret i16 %tmp } define i32 @var_shift_i32(i32 %x, i32 %y, i32 %z) nounwind { ; X86-FAST-LABEL: var_shift_i32: ; X86-FAST: # %bb.0: ; X86-FAST-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-FAST-NEXT: shldl %cl, %edx, %eax ; X86-FAST-NEXT: retl ; ; X86-SLOW-LABEL: var_shift_i32: ; X86-SLOW: # %bb.0: ; X86-SLOW-NEXT: pushl %edi ; X86-SLOW-NEXT: pushl %esi ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-SLOW-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-SLOW-NEXT: movl %eax, %edi ; X86-SLOW-NEXT: movl %edx, %ecx ; X86-SLOW-NEXT: shll %cl, %edi ; X86-SLOW-NEXT: andb $31, %dl ; X86-SLOW-NEXT: movl %edx, %ecx ; X86-SLOW-NEXT: negb %cl ; X86-SLOW-NEXT: shrl %cl, %esi ; X86-SLOW-NEXT: testb %dl, %dl ; X86-SLOW-NEXT: je .LBB2_2 ; X86-SLOW-NEXT: # %bb.1: ; X86-SLOW-NEXT: orl %esi, %edi ; X86-SLOW-NEXT: movl %edi, %eax ; X86-SLOW-NEXT: .LBB2_2: ; X86-SLOW-NEXT: popl %esi ; X86-SLOW-NEXT: popl %edi ; X86-SLOW-NEXT: retl ; ; X64-FAST-LABEL: var_shift_i32: ; X64-FAST: # %bb.0: ; X64-FAST-NEXT: movl %edx, %ecx ; X64-FAST-NEXT: movl %edi, %eax ; X64-FAST-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-FAST-NEXT: shldl %cl, %esi, %eax ; X64-FAST-NEXT: retq ; ; X64-SLOW-LABEL: var_shift_i32: ; X64-SLOW: # %bb.0: ; X64-SLOW-NEXT: movl %esi, %eax ; X64-SLOW-NEXT: movl %edi, %esi ; X64-SLOW-NEXT: movl %edx, %ecx ; X64-SLOW-NEXT: shll %cl, %esi ; X64-SLOW-NEXT: andb $31, %dl ; X64-SLOW-NEXT: movl %edx, %ecx ; X64-SLOW-NEXT: negb %cl ; X64-SLOW-NEXT: shrl %cl, %eax ; X64-SLOW-NEXT: orl %esi, %eax ; X64-SLOW-NEXT: testb %dl, %dl ; X64-SLOW-NEXT: cmovel %edi, %eax ; X64-SLOW-NEXT: retq %tmp = tail call i32 @llvm.fshl.i32(i32 %x, i32 %y, i32 %z) ret i32 %tmp } define i32 @var_shift_i32_optsize(i32 %x, i32 %y, i32 %z) nounwind optsize { ; X86-LABEL: var_shift_i32_optsize: ; X86: # %bb.0: ; X86-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: shldl %cl, %edx, %eax ; X86-NEXT: retl ; ; X64-LABEL: var_shift_i32_optsize: ; X64: # %bb.0: ; X64-NEXT: movl %edx, %ecx ; X64-NEXT: movl %edi, %eax ; X64-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NEXT: shldl %cl, %esi, %eax ; X64-NEXT: retq %tmp = tail call i32 @llvm.fshl.i32(i32 %x, i32 %y, i32 %z) ret i32 %tmp } define i64 @var_shift_i64(i64 %x, i64 %y, i64 %z) nounwind { ; X86-FAST-LABEL: var_shift_i64: ; X86-FAST: # %bb.0: ; X86-FAST-NEXT: pushl %ebp ; X86-FAST-NEXT: pushl %ebx ; X86-FAST-NEXT: pushl %edi ; X86-FAST-NEXT: pushl %esi ; X86-FAST-NEXT: pushl %eax ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-FAST-NEXT: movl %eax, (%esp) # 4-byte Spill ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %ebp ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-FAST-NEXT: andl $63, %ebx ; X86-FAST-NEXT: movl %eax, %edi ; X86-FAST-NEXT: movl %ebx, %ecx ; X86-FAST-NEXT: shll %cl, %edi ; X86-FAST-NEXT: shldl %cl, %eax, %ebp ; X86-FAST-NEXT: testb $32, %bl ; X86-FAST-NEXT: je .LBB4_2 ; X86-FAST-NEXT: # %bb.1: ; X86-FAST-NEXT: movl %edi, %ebp ; X86-FAST-NEXT: xorl %edi, %edi ; X86-FAST-NEXT: .LBB4_2: ; X86-FAST-NEXT: movb $64, %cl ; X86-FAST-NEXT: subb %bl, %cl ; X86-FAST-NEXT: movl %edx, %esi ; X86-FAST-NEXT: shrl %cl, %esi ; X86-FAST-NEXT: shrdl %cl, %edx, (%esp) # 4-byte Folded Spill ; X86-FAST-NEXT: testb $32, %cl ; X86-FAST-NEXT: jne .LBB4_3 ; X86-FAST-NEXT: # %bb.4: ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-FAST-NEXT: movl (%esp), %ecx # 4-byte Reload ; X86-FAST-NEXT: testl %ebx, %ebx ; X86-FAST-NEXT: jne .LBB4_6 ; X86-FAST-NEXT: jmp .LBB4_7 ; X86-FAST-NEXT: .LBB4_3: ; X86-FAST-NEXT: movl %esi, %ecx ; X86-FAST-NEXT: xorl %esi, %esi ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-FAST-NEXT: testl %ebx, %ebx ; X86-FAST-NEXT: je .LBB4_7 ; X86-FAST-NEXT: .LBB4_6: ; X86-FAST-NEXT: orl %esi, %ebp ; X86-FAST-NEXT: orl %ecx, %edi ; X86-FAST-NEXT: movl %edi, %eax ; X86-FAST-NEXT: movl %ebp, %edx ; X86-FAST-NEXT: .LBB4_7: ; X86-FAST-NEXT: addl $4, %esp ; X86-FAST-NEXT: popl %esi ; X86-FAST-NEXT: popl %edi ; X86-FAST-NEXT: popl %ebx ; X86-FAST-NEXT: popl %ebp ; X86-FAST-NEXT: retl ; ; X86-SLOW-LABEL: var_shift_i64: ; X86-SLOW: # %bb.0: ; X86-SLOW-NEXT: pushl %ebp ; X86-SLOW-NEXT: pushl %ebx ; X86-SLOW-NEXT: pushl %edi ; X86-SLOW-NEXT: pushl %esi ; X86-SLOW-NEXT: subl $8, %esp ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-SLOW-NEXT: andl $63, %ebx ; X86-SLOW-NEXT: movb $64, %dh ; X86-SLOW-NEXT: subb %bl, %dh ; X86-SLOW-NEXT: movl %eax, (%esp) # 4-byte Spill ; X86-SLOW-NEXT: movb %dh, %cl ; X86-SLOW-NEXT: shrl %cl, %eax ; X86-SLOW-NEXT: movb %dh, %dl ; X86-SLOW-NEXT: andb $31, %dl ; X86-SLOW-NEXT: movl %edx, %ecx ; X86-SLOW-NEXT: negb %cl ; X86-SLOW-NEXT: movl %esi, %ebp ; X86-SLOW-NEXT: shll %cl, %ebp ; X86-SLOW-NEXT: testb %dl, %dl ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-SLOW-NEXT: movl %ecx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill ; X86-SLOW-NEXT: je .LBB4_2 ; X86-SLOW-NEXT: # %bb.1: ; X86-SLOW-NEXT: orl %eax, %ebp ; X86-SLOW-NEXT: movl %ebp, (%esp) # 4-byte Spill ; X86-SLOW-NEXT: .LBB4_2: ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %ebp ; X86-SLOW-NEXT: movl %ebp, %eax ; X86-SLOW-NEXT: movl %ebx, %ecx ; X86-SLOW-NEXT: shll %cl, %eax ; X86-SLOW-NEXT: movb %bl, %ch ; X86-SLOW-NEXT: andb $31, %ch ; X86-SLOW-NEXT: movb %ch, %cl ; X86-SLOW-NEXT: negb %cl ; X86-SLOW-NEXT: shrl %cl, %edi ; X86-SLOW-NEXT: testb %ch, %ch ; X86-SLOW-NEXT: je .LBB4_4 ; X86-SLOW-NEXT: # %bb.3: ; X86-SLOW-NEXT: orl %edi, %eax ; X86-SLOW-NEXT: movl %eax, %ebp ; X86-SLOW-NEXT: .LBB4_4: ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-SLOW-NEXT: movl %eax, %edi ; X86-SLOW-NEXT: movl %ebx, %ecx ; X86-SLOW-NEXT: shll %cl, %edi ; X86-SLOW-NEXT: testb $32, %bl ; X86-SLOW-NEXT: je .LBB4_6 ; X86-SLOW-NEXT: # %bb.5: ; X86-SLOW-NEXT: movl %edi, %ebp ; X86-SLOW-NEXT: xorl %edi, %edi ; X86-SLOW-NEXT: .LBB4_6: ; X86-SLOW-NEXT: movb %dh, %cl ; X86-SLOW-NEXT: shrl %cl, %esi ; X86-SLOW-NEXT: testb $32, %dh ; X86-SLOW-NEXT: jne .LBB4_7 ; X86-SLOW-NEXT: # %bb.8: ; X86-SLOW-NEXT: movl (%esp), %ecx # 4-byte Reload ; X86-SLOW-NEXT: testl %ebx, %ebx ; X86-SLOW-NEXT: jne .LBB4_10 ; X86-SLOW-NEXT: jmp .LBB4_11 ; X86-SLOW-NEXT: .LBB4_7: ; X86-SLOW-NEXT: movl %esi, %ecx ; X86-SLOW-NEXT: xorl %esi, %esi ; X86-SLOW-NEXT: testl %ebx, %ebx ; X86-SLOW-NEXT: je .LBB4_11 ; X86-SLOW-NEXT: .LBB4_10: ; X86-SLOW-NEXT: orl %esi, %ebp ; X86-SLOW-NEXT: orl %ecx, %edi ; X86-SLOW-NEXT: movl %ebp, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill ; X86-SLOW-NEXT: movl %edi, %eax ; X86-SLOW-NEXT: .LBB4_11: ; X86-SLOW-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %edx # 4-byte Reload ; X86-SLOW-NEXT: addl $8, %esp ; X86-SLOW-NEXT: popl %esi ; X86-SLOW-NEXT: popl %edi ; X86-SLOW-NEXT: popl %ebx ; X86-SLOW-NEXT: popl %ebp ; X86-SLOW-NEXT: retl ; ; X64-FAST-LABEL: var_shift_i64: ; X64-FAST: # %bb.0: ; X64-FAST-NEXT: movq %rdx, %rcx ; X64-FAST-NEXT: movq %rdi, %rax ; X64-FAST-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-FAST-NEXT: shldq %cl, %rsi, %rax ; X64-FAST-NEXT: retq ; ; X64-SLOW-LABEL: var_shift_i64: ; X64-SLOW: # %bb.0: ; X64-SLOW-NEXT: movq %rsi, %rax ; X64-SLOW-NEXT: movq %rdi, %rsi ; X64-SLOW-NEXT: movl %edx, %ecx ; X64-SLOW-NEXT: shlq %cl, %rsi ; X64-SLOW-NEXT: andb $63, %dl ; X64-SLOW-NEXT: movl %edx, %ecx ; X64-SLOW-NEXT: negb %cl ; X64-SLOW-NEXT: shrq %cl, %rax ; X64-SLOW-NEXT: orq %rsi, %rax ; X64-SLOW-NEXT: testb %dl, %dl ; X64-SLOW-NEXT: cmoveq %rdi, %rax ; X64-SLOW-NEXT: retq %tmp = tail call i64 @llvm.fshl.i64(i64 %x, i64 %y, i64 %z) ret i64 %tmp } ; ; Const Funnel Shift ; define i8 @const_shift_i8(i8 %x, i8 %y) nounwind { ; X86-LABEL: const_shift_i8: ; X86: # %bb.0: ; X86-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NEXT: shrb %cl ; X86-NEXT: shlb $7, %al ; X86-NEXT: orb %cl, %al ; X86-NEXT: retl ; ; X64-LABEL: const_shift_i8: ; X64: # %bb.0: ; X64-NEXT: # kill: def $esi killed $esi def $rsi ; X64-NEXT: # kill: def $edi killed $edi def $rdi ; X64-NEXT: shrb %sil ; X64-NEXT: shlb $7, %dil ; X64-NEXT: leal (%rdi,%rsi), %eax ; X64-NEXT: # kill: def $al killed $al killed $eax ; X64-NEXT: retq %tmp = tail call i8 @llvm.fshl.i8(i8 %x, i8 %y, i8 7) ret i8 %tmp } define i16 @const_shift_i16(i16 %x, i16 %y) nounwind { ; X86-FAST-LABEL: const_shift_i16: ; X86-FAST: # %bb.0: ; X86-FAST-NEXT: movzwl {{[0-9]+}}(%esp), %ecx ; X86-FAST-NEXT: movzwl {{[0-9]+}}(%esp), %eax ; X86-FAST-NEXT: shldw $7, %cx, %ax ; X86-FAST-NEXT: retl ; ; X86-SLOW-LABEL: const_shift_i16: ; X86-SLOW: # %bb.0: ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-SLOW-NEXT: movzwl {{[0-9]+}}(%esp), %ecx ; X86-SLOW-NEXT: shrl $9, %ecx ; X86-SLOW-NEXT: shll $7, %eax ; X86-SLOW-NEXT: orl %ecx, %eax ; X86-SLOW-NEXT: # kill: def $ax killed $ax killed $eax ; X86-SLOW-NEXT: retl ; ; X64-FAST-LABEL: const_shift_i16: ; X64-FAST: # %bb.0: ; X64-FAST-NEXT: movl %edi, %eax ; X64-FAST-NEXT: shldw $7, %si, %ax ; X64-FAST-NEXT: # kill: def $ax killed $ax killed $eax ; X64-FAST-NEXT: retq ; ; X64-SLOW-LABEL: const_shift_i16: ; X64-SLOW: # %bb.0: ; X64-SLOW-NEXT: movzwl %si, %eax ; X64-SLOW-NEXT: shll $7, %edi ; X64-SLOW-NEXT: shrl $9, %eax ; X64-SLOW-NEXT: orl %edi, %eax ; X64-SLOW-NEXT: # kill: def $ax killed $ax killed $eax ; X64-SLOW-NEXT: retq %tmp = tail call i16 @llvm.fshl.i16(i16 %x, i16 %y, i16 7) ret i16 %tmp } define i32 @const_shift_i32(i32 %x, i32 %y) nounwind { ; X86-FAST-LABEL: const_shift_i32: ; X86-FAST: # %bb.0: ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-FAST-NEXT: shldl $7, %ecx, %eax ; X86-FAST-NEXT: retl ; ; X86-SLOW-LABEL: const_shift_i32: ; X86-SLOW: # %bb.0: ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-SLOW-NEXT: shrl $25, %ecx ; X86-SLOW-NEXT: shll $7, %eax ; X86-SLOW-NEXT: orl %ecx, %eax ; X86-SLOW-NEXT: retl ; ; X64-FAST-LABEL: const_shift_i32: ; X64-FAST: # %bb.0: ; X64-FAST-NEXT: movl %edi, %eax ; X64-FAST-NEXT: shldl $7, %esi, %eax ; X64-FAST-NEXT: retq ; ; X64-SLOW-LABEL: const_shift_i32: ; X64-SLOW: # %bb.0: ; X64-SLOW-NEXT: # kill: def $esi killed $esi def $rsi ; X64-SLOW-NEXT: # kill: def $edi killed $edi def $rdi ; X64-SLOW-NEXT: shrl $25, %esi ; X64-SLOW-NEXT: shll $7, %edi ; X64-SLOW-NEXT: leal (%rdi,%rsi), %eax ; X64-SLOW-NEXT: retq %tmp = tail call i32 @llvm.fshl.i32(i32 %x, i32 %y, i32 7) ret i32 %tmp } define i64 @const_shift_i64(i64 %x, i64 %y) nounwind { ; X86-FAST-LABEL: const_shift_i64: ; X86-FAST: # %bb.0: ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-FAST-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-FAST-NEXT: shrdl $25, %ecx, %eax ; X86-FAST-NEXT: shldl $7, %ecx, %edx ; X86-FAST-NEXT: retl ; ; X86-SLOW-LABEL: const_shift_i64: ; X86-SLOW: # %bb.0: ; X86-SLOW-NEXT: pushl %esi ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-SLOW-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-SLOW-NEXT: shrl $25, %esi ; X86-SLOW-NEXT: movl %ecx, %eax ; X86-SLOW-NEXT: shll $7, %eax ; X86-SLOW-NEXT: orl %esi, %eax ; X86-SLOW-NEXT: shrl $25, %ecx ; X86-SLOW-NEXT: shll $7, %edx ; X86-SLOW-NEXT: orl %ecx, %edx ; X86-SLOW-NEXT: popl %esi ; X86-SLOW-NEXT: retl ; ; X64-FAST-LABEL: const_shift_i64: ; X64-FAST: # %bb.0: ; X64-FAST-NEXT: movq %rdi, %rax ; X64-FAST-NEXT: shldq $7, %rsi, %rax ; X64-FAST-NEXT: retq ; ; X64-SLOW-LABEL: const_shift_i64: ; X64-SLOW: # %bb.0: ; X64-SLOW-NEXT: shrq $57, %rsi ; X64-SLOW-NEXT: shlq $7, %rdi ; X64-SLOW-NEXT: leaq (%rdi,%rsi), %rax ; X64-SLOW-NEXT: retq %tmp = tail call i64 @llvm.fshl.i64(i64 %x, i64 %y, i64 7) ret i64 %tmp }