mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
c69069f9b0
The number of zeros in the mask provides a lower bound on the number of leading zeros in the result.
126 lines
3.5 KiB
LLVM
126 lines
3.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+bmi,+bmi2 | FileCheck %s --check-prefixes=CHECK
|
|
|
|
define i64 @bzhi64(i64 %x, i64 %y) {
|
|
; CHECK-LABEL: bzhi64:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: bzhiq %rsi, %rdi, %rax
|
|
; CHECK-NEXT: retq
|
|
%tmp = tail call i64 @llvm.x86.bmi.bzhi.64(i64 %x, i64 %y)
|
|
ret i64 %tmp
|
|
}
|
|
|
|
define i64 @bzhi64_load(i64* %x, i64 %y) {
|
|
; CHECK-LABEL: bzhi64_load:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: bzhiq %rsi, (%rdi), %rax
|
|
; CHECK-NEXT: retq
|
|
%x1 = load i64, i64* %x
|
|
%tmp = tail call i64 @llvm.x86.bmi.bzhi.64(i64 %x1, i64 %y)
|
|
ret i64 %tmp
|
|
}
|
|
|
|
declare i64 @llvm.x86.bmi.bzhi.64(i64, i64)
|
|
|
|
define i64 @pdep64(i64 %x, i64 %y) {
|
|
; CHECK-LABEL: pdep64:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: pdepq %rsi, %rdi, %rax
|
|
; CHECK-NEXT: retq
|
|
%tmp = tail call i64 @llvm.x86.bmi.pdep.64(i64 %x, i64 %y)
|
|
ret i64 %tmp
|
|
}
|
|
|
|
define i64 @pdep64_load(i64 %x, i64* %y) {
|
|
; CHECK-LABEL: pdep64_load:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: pdepq (%rsi), %rdi, %rax
|
|
; CHECK-NEXT: retq
|
|
%y1 = load i64, i64* %y
|
|
%tmp = tail call i64 @llvm.x86.bmi.pdep.64(i64 %x, i64 %y1)
|
|
ret i64 %tmp
|
|
}
|
|
|
|
define i64 @pdep64_anyext(i32 %x) {
|
|
; CHECK-LABEL: pdep64_anyext:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
|
|
; CHECK-NEXT: movabsq $6148914691236517205, %rax # imm = 0x5555555555555555
|
|
; CHECK-NEXT: pdepq %rax, %rdi, %rax
|
|
; CHECK-NEXT: retq
|
|
%x1 = sext i32 %x to i64
|
|
%tmp = tail call i64 @llvm.x86.bmi.pdep.64(i64 %x1, i64 6148914691236517205)
|
|
ret i64 %tmp
|
|
}
|
|
|
|
declare i64 @llvm.x86.bmi.pdep.64(i64, i64)
|
|
|
|
define i64 @pext64(i64 %x, i64 %y) {
|
|
; CHECK-LABEL: pext64:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: pextq %rsi, %rdi, %rax
|
|
; CHECK-NEXT: retq
|
|
%tmp = tail call i64 @llvm.x86.bmi.pext.64(i64 %x, i64 %y)
|
|
ret i64 %tmp
|
|
}
|
|
|
|
define i64 @pext64_load(i64 %x, i64* %y) {
|
|
; CHECK-LABEL: pext64_load:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: pextq (%rsi), %rdi, %rax
|
|
; CHECK-NEXT: retq
|
|
%y1 = load i64, i64* %y
|
|
%tmp = tail call i64 @llvm.x86.bmi.pext.64(i64 %x, i64 %y1)
|
|
ret i64 %tmp
|
|
}
|
|
|
|
define i64 @pext64_knownbits(i64 %x, i64 %y) {
|
|
; CHECK-LABEL: pext64_knownbits:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: movabsq $6148914691236517205, %rax # imm = 0x5555555555555555
|
|
; CHECK-NEXT: pextq %rax, %rdi, %rax
|
|
; CHECK-NEXT: retq
|
|
%tmp = tail call i64 @llvm.x86.bmi.pext.64(i64 %x, i64 6148914691236517205)
|
|
%tmp2 = and i64 %tmp, 4294967295
|
|
ret i64 %tmp2
|
|
}
|
|
|
|
declare i64 @llvm.x86.bmi.pext.64(i64, i64)
|
|
|
|
define i64 @mulx64(i64 %x, i64 %y, i64* %p) {
|
|
; CHECK-LABEL: mulx64:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: movq %rdx, %rcx
|
|
; CHECK-NEXT: movq %rdi, %rdx
|
|
; CHECK-NEXT: mulxq %rsi, %rax, %rdx
|
|
; CHECK-NEXT: movq %rdx, (%rcx)
|
|
; CHECK-NEXT: retq
|
|
%x1 = zext i64 %x to i128
|
|
%y1 = zext i64 %y to i128
|
|
%r1 = mul i128 %x1, %y1
|
|
%h1 = lshr i128 %r1, 64
|
|
%h = trunc i128 %h1 to i64
|
|
%l = trunc i128 %r1 to i64
|
|
store i64 %h, i64* %p
|
|
ret i64 %l
|
|
}
|
|
|
|
define i64 @mulx64_load(i64 %x, i64* %y, i64* %p) {
|
|
; CHECK-LABEL: mulx64_load:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: movq %rdx, %rcx
|
|
; CHECK-NEXT: movq %rdi, %rdx
|
|
; CHECK-NEXT: mulxq (%rsi), %rax, %rdx
|
|
; CHECK-NEXT: movq %rdx, (%rcx)
|
|
; CHECK-NEXT: retq
|
|
%y1 = load i64, i64* %y
|
|
%x2 = zext i64 %x to i128
|
|
%y2 = zext i64 %y1 to i128
|
|
%r1 = mul i128 %x2, %y2
|
|
%h1 = lshr i128 %r1, 64
|
|
%h = trunc i128 %h1 to i64
|
|
%l = trunc i128 %r1 to i64
|
|
store i64 %h, i64* %p
|
|
ret i64 %l
|
|
}
|