llvm-6502/test/CodeGen/R600/mad_int24.ll
Tom Stellard 3986785046 R600/SI: Use -verify-machineinstrs for most tests
We can't enable the verifier for tests with SI_IF and SI_ELSE, because
these instructions are always followed by a COPY which copies their
result to the next basic block.  This violates the machine verifier's
rule that non-terminators can not folow terminators.

Reviewed-by: Vincent Lejeune<vljn at ovi.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192366 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-10 17:11:46 +00:00

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LLVM

; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=EG-CHECK
; RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck %s --check-prefix=CM-CHECK
; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI-CHECK
; EG-CHECK: @i32_mad24
; Signed 24-bit multiply is not supported on pre-Cayman GPUs.
; EG-CHECK: MULLO_INT
; CM-CHECK: MULADD_INT24 {{[ *]*}}T{{[0-9].[XYZW]}}, KC0[2].Z, KC0[2].W, KC0[3].X
; SI-CHECK: V_MAD_I32_I24
define void @i32_mad24(i32 addrspace(1)* %out, i32 %a, i32 %b, i32 %c) {
entry:
%0 = shl i32 %a, 8
%a_24 = ashr i32 %0, 8
%1 = shl i32 %b, 8
%b_24 = ashr i32 %1, 8
%2 = mul i32 %a_24, %b_24
%3 = add i32 %2, %c
store i32 %3, i32 addrspace(1)* %out
ret void
}