llvm-6502/test/CodeGen/R600/fma.ll
Matt Arsenault 86245071b5 R600/SI: Change formatting of printed registers.
Print the range of registers used with a single letter prefix.
This better matches what the shader compiler produces and
is overall less obnoxious than concatenating all of the
subregister names together.

Instead of SGPR0, it will print s0. Instead of SGPR0_SGPR1,
it will print s[0:1] and so on.

There doesn't appear to be a straightforward way
to get the actual register info in the InstPrinter,
so this parses the generated name to print with the
new syntax.

The required test changes are pretty nasty, and register
matching regexes are now worse. Since there isn't a way to
add to a variable in FileCheck, some of the tests now don't
check the exact number of registers used, but I don't think that
will be a real problem.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194443 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-12 02:35:51 +00:00

32 lines
1.2 KiB
LLVM

; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s
; CHECK: @fma_f32
; CHECK: V_FMA_F32 {{v[0-9]+, v[0-9]+, v[0-9]+, v[0-9]+}}
define void @fma_f32(float addrspace(1)* %out, float addrspace(1)* %in1,
float addrspace(1)* %in2, float addrspace(1)* %in3) {
%r0 = load float addrspace(1)* %in1
%r1 = load float addrspace(1)* %in2
%r2 = load float addrspace(1)* %in3
%r3 = tail call float @llvm.fma.f32(float %r0, float %r1, float %r2)
store float %r3, float addrspace(1)* %out
ret void
}
declare float @llvm.fma.f32(float, float, float)
; CHECK: @fma_f64
; CHECK: V_FMA_F64 {{v\[[0-9]+:[0-9]+\], v\[[0-9]+:[0-9]+\], v\[[0-9]+:[0-9]+\], v\[[0-9]+:[0-9]+\]}}
define void @fma_f64(double addrspace(1)* %out, double addrspace(1)* %in1,
double addrspace(1)* %in2, double addrspace(1)* %in3) {
%r0 = load double addrspace(1)* %in1
%r1 = load double addrspace(1)* %in2
%r2 = load double addrspace(1)* %in3
%r3 = tail call double @llvm.fma.f64(double %r0, double %r1, double %r2)
store double %r3, double addrspace(1)* %out
ret void
}
declare double @llvm.fma.f64(double, double, double)