llvm-6502/test/CodeGen/R600/fsub.ll
Tom Stellard 4bdf9890ed R600: Fold clamp, neg, abs
Patch by: Vincent Lejeune

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174099 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31 22:11:54 +00:00

17 lines
450 B
LLVM

;RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
; CHECK: ADD T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], -T[0-9]+\.[XYZW]}}
define void @test() {
%r0 = call float @llvm.R600.load.input(i32 0)
%r1 = call float @llvm.R600.load.input(i32 1)
%r2 = fsub float %r0, %r1
call void @llvm.AMDGPU.store.output(float %r2, i32 0)
ret void
}
declare float @llvm.R600.load.input(i32) readnone
declare void @llvm.AMDGPU.store.output(float, i32)