blob: 2b854aba312f4d3567c2b5f5695ce3c7f6c9ce80 [file] [log] [blame]
Tom Stellard50122a52014-04-07 19:45:41 +00001; 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=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC
Tom Stellard52639482013-07-23 01:48:49 +00004
Tom Stellard79243d92014-10-01 17:15:17 +00005; FUNC-LABEL: {{^}}i32_mad24:
Tom Stellard52639482013-07-23 01:48:49 +00006; Signed 24-bit multiply is not supported on pre-Cayman GPUs.
Tom Stellard50122a52014-04-07 19:45:41 +00007; EG: MULLO_INT
8; Make sure we aren't masking the inputs.
9; CM-NOT: AND
10; CM: MULADD_INT24
Tom Stellard326d6ec2014-11-05 14:50:53 +000011; SI-NOT: and
12; SI: v_mad_i32_i24
Tom Stellard52639482013-07-23 01:48:49 +000013define void @i32_mad24(i32 addrspace(1)* %out, i32 %a, i32 %b, i32 %c) {
14entry:
15 %0 = shl i32 %a, 8
16 %a_24 = ashr i32 %0, 8
17 %1 = shl i32 %b, 8
18 %b_24 = ashr i32 %1, 8
19 %2 = mul i32 %a_24, %b_24
20 %3 = add i32 %2, %c
21 store i32 %3, i32 addrspace(1)* %out
22 ret void
23}