llvm.org GIT mirror llvm / stable test / CodeGen / AMDGPU / andorbitset.ll
stable

Tree @stable (Download .tar.gz)

andorbitset.ll @stableraw · history · blame

; RUN: llc -march=amdgcn -mcpu=tahiti -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s

; SI-LABEL: {{^}}s_clear_msb:
; SI: s_bitset0_b32 s{{[0-9]+}}, 31
define amdgpu_kernel void @s_clear_msb(i32 addrspace(1)* %out, i32 %in) {
  %x = and i32 %in, 2147483647
  store i32 %x, i32 addrspace(1)* %out
  ret void
}

; SI-LABEL: {{^}}s_set_msb:
; SI: s_bitset1_b32 s{{[0-9]+}}, 31
define amdgpu_kernel void @s_set_msb(i32 addrspace(1)* %out, i32 %in) {
  %x = or i32 %in, 2147483648
  store i32 %x, i32 addrspace(1)* %out
  ret void
}

; SI-LABEL: {{^}}s_clear_lsb:
; SI: s_and_b32 s{{[0-9]+}}, s{{[0-9]+}}, -2
define amdgpu_kernel void @s_clear_lsb(i32 addrspace(1)* %out, i32 %in) {
  %x = and i32 %in, 4294967294
  store i32 %x, i32 addrspace(1)* %out
  ret void
}

; SI-LABEL: {{^}}s_set_lsb:
; SI: s_or_b32 s{{[0-9]+}}, s{{[0-9]+}}, 1
define amdgpu_kernel void @s_set_lsb(i32 addrspace(1)* %out, i32 %in) {
  %x = or i32 %in, 1
  store i32 %x, i32 addrspace(1)* %out
  ret void
}

; SI-LABEL: {{^}}s_clear_midbit:
; SI: s_bitset0_b32 s{{[0-9]+}}, 8
define amdgpu_kernel void @s_clear_midbit(i32 addrspace(1)* %out, i32 %in) {
  %x = and i32 %in, 4294967039
  store i32 %x, i32 addrspace(1)* %out
  ret void
}

; SI-LABEL: {{^}}s_set_midbit:
; SI: s_bitset1_b32 s{{[0-9]+}}, 8
define amdgpu_kernel void @s_set_midbit(i32 addrspace(1)* %out, i32 %in) {
  %x = or i32 %in, 256
  store i32 %x, i32 addrspace(1)* %out
  ret void
}