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llvm-mirror/test/CodeGen/AMDGPU/trunc-cmp-constant.ll
Matt Arsenault 3a9a1ac61b AMDGPU: Use unsigned compare for eq/ne 
For some reason there are both of these available, except
for scalar 64-bit compares which only has u64. I'm not sure
why there are both (I'm guessing it's for the one bit inputs we
don't use), but for consistency always using the
unsigned one.

llvm-svn: 282832
2016-09-30 01:50:20 +00:00

170 lines
6.3 KiB
LLVM
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; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; FUNC-LABEL {{^}}sextload_i1_to_i32_trunc_cmp_eq_0:
; SI: buffer_load_ubyte [[LOAD:v[0-9]+]]
; SI: v_and_b32_e32 [[TMP:v[0-9]+]], 1, [[LOAD]]
; SI: v_cmp_eq_u32_e32 vcc, 0, [[TMP]]{{$}}
; SI: v_cndmask_b32_e64
; SI: buffer_store_byte
define void @sextload_i1_to_i32_trunc_cmp_eq_0(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = sext i1 %load to i32
%cmp = icmp eq i32 %ext, 0
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FIXME: The negate should be inverting the compare.
; FUNC-LABEL: {{^}}zextload_i1_to_i32_trunc_cmp_eq_0:
; SI: buffer_load_ubyte [[LOAD:v[0-9]+]]
; SI: v_and_b32_e32 [[TMP:v[0-9]+]], 1, [[LOAD]]
; SI: v_cmp_eq_u32_e32 vcc, 1, [[TMP]]{{$}}
; SI-NEXT: s_xor_b64 [[NEG:s\[[0-9]+:[0-9]+\]]], vcc, -1
; SI-NEXT: v_cndmask_b32_e64 [[RESULT:v[0-9]+]], 0, 1, [[NEG]]
; SI: buffer_store_byte [[RESULT]]
define void @zextload_i1_to_i32_trunc_cmp_eq_0(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = zext i1 %load to i32
%cmp = icmp eq i32 %ext, 0
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}sextload_i1_to_i32_trunc_cmp_eq_1:
; SI: v_mov_b32_e32 [[RESULT:v[0-9]+]], 0{{$}}
; SI: buffer_store_byte [[RESULT]]
define void @sextload_i1_to_i32_trunc_cmp_eq_1(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = sext i1 %load to i32
%cmp = icmp eq i32 %ext, 1
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}zextload_i1_to_i32_trunc_cmp_eq_1:
; SI: buffer_load_ubyte [[LOAD:v[0-9]+]]
; SI: v_and_b32_e32 [[RESULT:v[0-9]+]], 1, [[LOAD]]
; SI: buffer_store_byte [[RESULT]]
define void @zextload_i1_to_i32_trunc_cmp_eq_1(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = zext i1 %load to i32
%cmp = icmp eq i32 %ext, 1
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}sextload_i1_to_i32_trunc_cmp_eq_neg1:
; SI: buffer_load_ubyte [[LOAD:v[0-9]+]]
; SI: v_and_b32_e32 [[RESULT:v[0-9]+]], 1, [[LOAD]]
; SI: buffer_store_byte [[RESULT]]
define void @sextload_i1_to_i32_trunc_cmp_eq_neg1(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = sext i1 %load to i32
%cmp = icmp eq i32 %ext, -1
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}zextload_i1_to_i32_trunc_cmp_eq_neg1:
; SI: v_mov_b32_e32 [[RESULT:v[0-9]+]], 0{{$}}
; SI: buffer_store_byte [[RESULT]]
define void @zextload_i1_to_i32_trunc_cmp_eq_neg1(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = zext i1 %load to i32
%cmp = icmp eq i32 %ext, -1
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FUNC-LABEL {{^}}sextload_i1_to_i32_trunc_cmp_ne_0:
; SI: buffer_load_ubyte [[LOAD:v[0-9]+]]
; SI: v_and_b32_e32 [[TMP:v[0-9]+]], 1, [[LOAD]]
; SI: buffer_store_byte [[RESULT]]
define void @sextload_i1_to_i32_trunc_cmp_ne_0(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = sext i1 %load to i32
%cmp = icmp ne i32 %ext, 0
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}zextload_i1_to_i32_trunc_cmp_ne_0:
; SI: buffer_load_ubyte [[LOAD:v[0-9]+]]
; SI: v_and_b32_e32 [[TMP:v[0-9]+]], 1, [[LOAD]]
; SI: buffer_store_byte [[RESULT]]
define void @zextload_i1_to_i32_trunc_cmp_ne_0(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = zext i1 %load to i32
%cmp = icmp ne i32 %ext, 0
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}sextload_i1_to_i32_trunc_cmp_ne_1:
; SI: v_mov_b32_e32 [[RESULT:v[0-9]+]], 1{{$}}
; SI: buffer_store_byte [[RESULT]]
define void @sextload_i1_to_i32_trunc_cmp_ne_1(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = sext i1 %load to i32
%cmp = icmp ne i32 %ext, 1
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}zextload_i1_to_i32_trunc_cmp_ne_1:
; SI: buffer_load_ubyte [[LOAD:v[0-9]+]]
; SI: v_and_b32_e32 [[TMP:v[0-9]+]], 1, [[LOAD]]
; SI: v_cmp_eq_u32_e32 vcc, 1, [[TMP]]{{$}}
; SI-NEXT: s_xor_b64 [[NEG:s\[[0-9]+:[0-9]+\]]], vcc, -1
; SI-NEXT: v_cndmask_b32_e64 [[RESULT:v[0-9]+]], 0, 1, [[NEG]]
; SI: buffer_store_byte [[RESULT]]
define void @zextload_i1_to_i32_trunc_cmp_ne_1(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = zext i1 %load to i32
%cmp = icmp ne i32 %ext, 1
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FIXME: This should be one compare.
; FUNC-LABEL: {{^}}sextload_i1_to_i32_trunc_cmp_ne_neg1:
; XSI: buffer_load_ubyte [[LOAD:v[0-9]+]]
; XSI: v_and_b32_e32 [[TMP:v[0-9]+]], 1, [[LOAD]]
; XSI: v_cmp_eq_u32_e64 [[CMP0:s\[[0-9]+:[0-9]+\]]], [[TMP]], 0{{$}}
; XSI-NEXT: v_cndmask_b32_e64 [[RESULT:v[0-9]+]], 0, 1, [[CMP0]]
; XSI-NEXT: buffer_store_byte [[RESULT]]
define void @sextload_i1_to_i32_trunc_cmp_ne_neg1(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = sext i1 %load to i32
%cmp = icmp ne i32 %ext, -1
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}zextload_i1_to_i32_trunc_cmp_ne_neg1:
; SI: v_mov_b32_e32 [[RESULT:v[0-9]+]], 1{{$}}
; SI: buffer_store_byte [[RESULT]]
define void @zextload_i1_to_i32_trunc_cmp_ne_neg1(i1 addrspace(1)* %out, i1 addrspace(1)* %in) nounwind {
%load = load i1, i1 addrspace(1)* %in
%ext = zext i1 %load to i32
%cmp = icmp ne i32 %ext, -1
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}masked_load_i1_to_i32_trunc_cmp_ne_neg1:
; SI: buffer_load_sbyte [[LOAD:v[0-9]+]]
; SI: v_cmp_ne_u32_e32 vcc, -1, [[LOAD]]{{$}}
; SI-NEXT: v_cndmask_b32_e64
; SI: buffer_store_byte
define void @masked_load_i1_to_i32_trunc_cmp_ne_neg1(i1 addrspace(1)* %out, i8 addrspace(1)* %in) nounwind {
%load = load i8, i8 addrspace(1)* %in
%masked = and i8 %load, 255
%ext = sext i8 %masked to i32
%cmp = icmp ne i32 %ext, -1
store i1 %cmp, i1 addrspace(1)* %out
ret void
}
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