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| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown | FileCheck %s
; SHLD/SHRD manual shifts
define i64 @test1(i64 %hi, i64 %lo, i64 %bits) nounwind {
; CHECK-LABEL: test1:
; CHECK: # %bb.0:
; CHECK-NEXT: movq %rdx, %rcx
; CHECK-NEXT: movq %rdi, %rax
; CHECK-NEXT: andl $63, %ecx
; CHECK-NEXT: # kill: def $cl killed $cl killed $rcx
; CHECK-NEXT: shldq %cl, %rsi, %rax
; CHECK-NEXT: retq
%and = and i64 %bits, 63
%and64 = sub i64 64, %and
%sh_lo = lshr i64 %lo, %and64
%sh_hi = shl i64 %hi, %and
%sh = or i64 %sh_lo, %sh_hi
ret i64 %sh
}
define i64 @test2(i64 %hi, i64 %lo, i64 %bits) nounwind {
; CHECK-LABEL: test2:
; CHECK: # %bb.0:
; CHECK-NEXT: movq %rdx, %rcx
; CHECK-NEXT: movq %rsi, %rax
; CHECK-NEXT: andl $63, %ecx
; CHECK-NEXT: # kill: def $cl killed $cl killed $rcx
; CHECK-NEXT: shrdq %cl, %rdi, %rax
; CHECK-NEXT: retq
%and = and i64 %bits, 63
%and64 = sub i64 64, %and
%sh_lo = shl i64 %hi, %and64
%sh_hi = lshr i64 %lo, %and
%sh = or i64 %sh_lo, %sh_hi
ret i64 %sh
}
define i64 @test3(i64 %hi, i64 %lo, i64 %bits) nounwind {
; CHECK-LABEL: test3:
; CHECK: # %bb.0:
; CHECK-NEXT: movq %rdx, %rcx
; CHECK-NEXT: movq %rdi, %rax
; CHECK-NEXT: # kill: def $cl killed $cl killed $rcx
; CHECK-NEXT: shldq %cl, %rsi, %rax
; CHECK-NEXT: retq
%bits64 = sub i64 64, %bits
%sh_lo = lshr i64 %lo, %bits64
%sh_hi = shl i64 %hi, %bits
%sh = or i64 %sh_lo, %sh_hi
ret i64 %sh
}
define i64 @test4(i64 %hi, i64 %lo, i64 %bits) nounwind {
; CHECK-LABEL: test4:
; CHECK: # %bb.0:
; CHECK-NEXT: movq %rdx, %rcx
; CHECK-NEXT: movq %rsi, %rax
; CHECK-NEXT: # kill: def $cl killed $cl killed $rcx
; CHECK-NEXT: shrdq %cl, %rdi, %rax
; CHECK-NEXT: retq
%bits64 = sub i64 64, %bits
%sh_lo = shl i64 %hi, %bits64
%sh_hi = lshr i64 %lo, %bits
%sh = or i64 %sh_lo, %sh_hi
ret i64 %sh
}
define i64 @test5(i64 %hi, i64 %lo, i64 %bits) nounwind {
; CHECK-LABEL: test5:
; CHECK: # %bb.0:
; CHECK-NEXT: movq %rdx, %rcx
; CHECK-NEXT: movq %rdi, %rax
; CHECK-NEXT: # kill: def $cl killed $cl killed $rcx
; CHECK-NEXT: shldq %cl, %rsi, %rax
; CHECK-NEXT: retq
%bits64 = xor i64 %bits, 63
%lo2 = lshr i64 %lo, 1
%sh_lo = lshr i64 %lo2, %bits64
%sh_hi = shl i64 %hi, %bits
%sh = or i64 %sh_lo, %sh_hi
ret i64 %sh
}
define i64 @test6(i64 %hi, i64 %lo, i64 %bits) nounwind {
; CHECK-LABEL: test6:
; CHECK: # %bb.0:
; CHECK-NEXT: movq %rdx, %rcx
; CHECK-NEXT: movq %rdi, %rax
; CHECK-NEXT: # kill: def $cl killed $cl killed $rcx
; CHECK-NEXT: shrdq %cl, %rsi, %rax
; CHECK-NEXT: retq
%bits64 = xor i64 %bits, 63
%lo2 = shl i64 %lo, 1
%sh_lo = shl i64 %lo2, %bits64
%sh_hi = lshr i64 %hi, %bits
%sh = or i64 %sh_lo, %sh_hi
ret i64 %sh
}
define i64 @test7(i64 %hi, i64 %lo, i64 %bits) nounwind {
; CHECK-LABEL: test7:
; CHECK: # %bb.0:
; CHECK-NEXT: movq %rdx, %rcx
; CHECK-NEXT: movq %rdi, %rax
; CHECK-NEXT: # kill: def $cl killed $cl killed $rcx
; CHECK-NEXT: shrdq %cl, %rsi, %rax
; CHECK-NEXT: retq
%bits64 = xor i64 %bits, 63
%lo2 = add i64 %lo, %lo
%sh_lo = shl i64 %lo2, %bits64
%sh_hi = lshr i64 %hi, %bits
%sh = or i64 %sh_lo, %sh_hi
ret i64 %sh
}
define i64 @test8(i64 %hi, i64 %lo, i64 %bits) nounwind {
; CHECK-LABEL: test8:
; CHECK: # %bb.0:
; CHECK-NEXT: movq %rdx, %rcx
; CHECK-NEXT: movq %rdi, %rax
; CHECK-NEXT: # kill: def $cl killed $cl killed $rcx
; CHECK-NEXT: shldq %cl, %rsi, %rax
; CHECK-NEXT: retq
%tbits = trunc i64 %bits to i8
%tand = and i8 %tbits, 63
%tand64 = sub i8 64, %tand
%and = zext i8 %tand to i64
%and64 = zext i8 %tand64 to i64
%sh_lo = lshr i64 %lo, %and64
%sh_hi = shl i64 %hi, %and
%sh = or i64 %sh_lo, %sh_hi
ret i64 %sh
}
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