Gitiles
Code Review Sign In
gerrit-public.fairphone.software / toolchain / llvm-project / bc041b82d44b51a3b7da79c38e4052e28ff8011c / . / llvm / test / CodeGen / AMDGPU / mad_int24.ll
blob: def14c10d42cf35b371f2b56d495fad4ff0f874a [file] [log] [blame]
Tom Stellard50122a52014-04-07 19:45:41 +0000[diff] [blame]1; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=EG --check-prefix=FUNC
2; RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck %s --check-prefix=CM --check-prefix=FUNC
Tom Stellard49f8bfd2015-01-06 18:00:21 +0000[diff] [blame]3; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC
Marek Olsak75170772015-01-27 17:27:15 +0000[diff] [blame]4; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC
Tom Stellard52639482013-07-23 01:48:49 +0000[diff] [blame]5
Tom Stellard79243d92014-10-01 17:15:17 +0000[diff] [blame]6; FUNC-LABEL: {{^}}i32_mad24:
Tom Stellard52639482013-07-23 01:48:49 +0000[diff] [blame]7; Signed 24-bit multiply is not supported on pre-Cayman GPUs.
Tom Stellard50122a52014-04-07 19:45:41 +0000[diff] [blame]8; EG: MULLO_INT
9; Make sure we aren't masking the inputs.
10; CM-NOT: AND
11; CM: MULADD_INT24
Tom Stellard326d6ec2014-11-05 14:50:53 +0000[diff] [blame]12; SI-NOT: and
13; SI: v_mad_i32_i24
Tom Stellard52639482013-07-23 01:48:49 +0000[diff] [blame]14define void @i32_mad24(i32 addrspace(1)* %out, i32 %a, i32 %b, i32 %c) {
15entry:
16 %0 = shl i32 %a, 8
17 %a_24 = ashr i32 %0, 8
18 %1 = shl i32 %b, 8
19 %b_24 = ashr i32 %1, 8
20 %2 = mul i32 %a_24, %b_24
21 %3 = add i32 %2, %c
22 store i32 %3, i32 addrspace(1)* %out
23 ret void
24}