110 lines
2.9 KiB
LLVM
110 lines
2.9 KiB
LLVM
; 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: andl $63, %edx
|
|
; CHECK-NEXT: movl %edx, %ecx
|
|
; CHECK-NEXT: shldq %cl, %rsi, %rdi
|
|
; CHECK-NEXT: movq %rdi, %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: andl $63, %edx
|
|
; CHECK-NEXT: movl %edx, %ecx
|
|
; CHECK-NEXT: shrdq %cl, %rdi, %rsi
|
|
; CHECK-NEXT: movq %rsi, %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: movl %edx, %ecx
|
|
; CHECK-NEXT: shldq %cl, %rsi, %rdi
|
|
; CHECK-NEXT: movq %rdi, %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: movl %edx, %ecx
|
|
; CHECK-NEXT: shrdq %cl, %rdi, %rsi
|
|
; CHECK-NEXT: movq %rsi, %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: movl %edx, %ecx
|
|
; CHECK-NEXT: shldq %cl, %rsi, %rdi
|
|
; CHECK-NEXT: movq %rdi, %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: movl %edx, %ecx
|
|
; CHECK-NEXT: shrdq %cl, %rsi, %rdi
|
|
; CHECK-NEXT: movq %rdi, %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: movl %edx, %ecx
|
|
; CHECK-NEXT: shrdq %cl, %rsi, %rdi
|
|
; CHECK-NEXT: movq %rdi, %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
|
|
}
|