source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/AMDGPU/mul_int24.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 879 bytes
Line 
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
3; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC
4; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC
5
6; FUNC-LABEL: {{^}}i32_mul24:
7; Signed 24-bit multiply is not supported on pre-Cayman GPUs.
8; EG: MULLO_INT
9; Make sure we are not masking the inputs
10; CM-NOT: AND
11; CM: MUL_INT24
12; SI-NOT: and
13; SI: v_mul_i32_i24
14define void @i32_mul24(i32 addrspace(1)* %out, i32 %a, i32 %b) {
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  store i32 %2, i32 addrspace(1)* %out
22  ret void
23}
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