Files
archived-llvm/test/CodeGen/AMDGPU/mad_int24.ll
Matt Arsenault d019e8638a Enable FeatureFlatForGlobal on Volcanic Islands
This switches to the workaround that HSA defaults to
for the mesa path.

This should be applied to the 4.0 branch.

Patch by Vedran Miletić <vedran@miletic.net>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292982 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-24 22:02:15 +00:00

25 lines
927 B
LLVM

; RUN: llc < %s -march=amdgcn -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC
; RUN: llc < %s -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC
; 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=CM --check-prefix=FUNC
; FUNC-LABEL: {{^}}i32_mad24:
; Signed 24-bit multiply is not supported on pre-Cayman GPUs.
; EG: MULLO_INT
; Make sure we aren't masking the inputs.
; CM-NOT: AND
; CM: MULADD_INT24
; SI-NOT: and
; SI: 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
}