llvm-6502/test/CodeGen/R600/mul_uint24.ll
Tom Stellard 17c8fefc9f R600/SI: Do abs/neg folding with ComplexPatterns
Abs/neg folding has moved out of foldOperands and into the instruction
selection phase using complex patterns.  As a consequence of this
change, we now prefer to select the 64-bit encoding for most
instructions and the modifier operands have been dropped from
integer VOP3 instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214467 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-01 00:32:39 +00:00

67 lines
2.0 KiB
LLVM

; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=EG --check-prefix=FUNC
; RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck %s --check-prefix=EG --check-prefix=FUNC
; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC
; FUNC-LABEL: @u32_mul24
; EG: MUL_UINT24 {{[* ]*}}T{{[0-9]\.[XYZW]}}, KC0[2].Z, KC0[2].W
; SI: V_MUL_U32_U24
define void @u32_mul24(i32 addrspace(1)* %out, i32 %a, i32 %b) {
entry:
%0 = shl i32 %a, 8
%a_24 = lshr i32 %0, 8
%1 = shl i32 %b, 8
%b_24 = lshr i32 %1, 8
%2 = mul i32 %a_24, %b_24
store i32 %2, i32 addrspace(1)* %out
ret void
}
; FUNC-LABEL: @i16_mul24
; EG: MUL_UINT24 {{[* ]*}}T{{[0-9]}}.[[MUL_CHAN:[XYZW]]]
; The result must be sign-extended
; EG: BFE_INT {{[* ]*}}T{{[0-9]}}.{{[XYZW]}}, PV.[[MUL_CHAN]], 0.0, literal.x
; EG: 16
; SI: V_MUL_U32_U24_e{{(32|64)}} [[MUL:v[0-9]]], {{[sv][0-9], [sv][0-9]}}
; SI: V_BFE_I32 v{{[0-9]}}, [[MUL]], 0, 16
define void @i16_mul24(i32 addrspace(1)* %out, i16 %a, i16 %b) {
entry:
%0 = mul i16 %a, %b
%1 = sext i16 %0 to i32
store i32 %1, i32 addrspace(1)* %out
ret void
}
; FUNC-LABEL: @i8_mul24
; EG: MUL_UINT24 {{[* ]*}}T{{[0-9]}}.[[MUL_CHAN:[XYZW]]]
; The result must be sign-extended
; EG: BFE_INT {{[* ]*}}T{{[0-9]}}.{{[XYZW]}}, PV.[[MUL_CHAN]], 0.0, literal.x
; SI: V_MUL_U32_U24_e{{(32|64)}} [[MUL:v[0-9]]], {{[sv][0-9], [sv][0-9]}}
; SI: V_BFE_I32 v{{[0-9]}}, [[MUL]], 0, 8
define void @i8_mul24(i32 addrspace(1)* %out, i8 %a, i8 %b) {
entry:
%0 = mul i8 %a, %b
%1 = sext i8 %0 to i32
store i32 %1, i32 addrspace(1)* %out
ret void
}
; Multiply with 24-bit inputs and 64-bit output
; FUNC_LABEL: @mul24_i64
; EG; MUL_UINT24
; EG: MULHI
; SI: V_MUL_U32_U24
; FIXME: SI support 24-bit mulhi
; SI: V_MUL_HI_U32
define void @mul24_i64(i64 addrspace(1)* %out, i64 %a, i64 %b) {
entry:
%0 = shl i64 %a, 40
%a_24 = lshr i64 %0, 40
%1 = shl i64 %b, 40
%b_24 = lshr i64 %1, 40
%2 = mul i64 %a_24, %b_24
store i64 %2, i64 addrspace(1)* %out
ret void
}