llvm-6502/test/CodeGen/R600/fdiv.ll
Matt Arsenault 4b0a7f3946 R600/SI: Implement less wrong f32 fdiv
Assuming single precision denormals and accurate sqrt/div are not
reported, this passes the OpenCL conformance test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213089 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-15 20:18:31 +00:00

68 lines
2.4 KiB
LLVM

; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=R600 %s
; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
; These tests check that fdiv is expanded correctly and also test that the
; scheduler is scheduling the RECIP_IEEE and MUL_IEEE instructions in separate
; instruction groups.
; FUNC-LABEL: @fdiv_f32
; R600-DAG: RECIP_IEEE * T{{[0-9]+\.[XYZW]}}, KC0[3].Z
; R600-DAG: RECIP_IEEE * T{{[0-9]+\.[XYZW]}}, KC0[3].Y
; R600-DAG: MUL_IEEE {{\** *}}T{{[0-9]+\.[XYZW]}}, KC0[3].X, PS
; R600-DAG: MUL_IEEE {{\** *}}T{{[0-9]+\.[XYZW]}}, KC0[2].W, PS
; SI-DAG: V_RCP_F32
; SI-DAG: V_MUL_F32
define void @fdiv_f32(float addrspace(1)* %out, float %a, float %b) {
entry:
%0 = fdiv float %a, %b
store float %0, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: @fdiv_v2f32
; R600-DAG: RECIP_IEEE * T{{[0-9]+\.[XYZW]}}, KC0[3].Z
; R600-DAG: RECIP_IEEE * T{{[0-9]+\.[XYZW]}}, KC0[3].Y
; R600-DAG: MUL_IEEE {{\** *}}T{{[0-9]+\.[XYZW]}}, KC0[3].X, PS
; R600-DAG: MUL_IEEE {{\** *}}T{{[0-9]+\.[XYZW]}}, KC0[2].W, PS
; SI-DAG: V_RCP_F32
; SI-DAG: V_MUL_F32
; SI-DAG: V_RCP_F32
; SI-DAG: V_MUL_F32
define void @fdiv_v2f32(<2 x float> addrspace(1)* %out, <2 x float> %a, <2 x float> %b) {
entry:
%0 = fdiv <2 x float> %a, %b
store <2 x float> %0, <2 x float> addrspace(1)* %out
ret void
}
; FUNC-LABEL: @fdiv_v4f32
; R600-DAG: RECIP_IEEE * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
; R600-DAG: RECIP_IEEE * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
; R600-DAG: RECIP_IEEE * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
; R600-DAG: RECIP_IEEE * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
; R600-DAG: MUL_IEEE {{\** *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, PS
; R600-DAG: MUL_IEEE {{\** *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, PS
; R600-DAG: MUL_IEEE {{\** *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, PS
; R600-DAG: MUL_IEEE {{\** *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, PS
; SI-DAG: V_RCP_F32
; SI-DAG: V_MUL_F32
; SI-DAG: V_RCP_F32
; SI-DAG: V_MUL_F32
; SI-DAG: V_RCP_F32
; SI-DAG: V_MUL_F32
; SI-DAG: V_RCP_F32
; SI-DAG: V_MUL_F32
define void @fdiv_v4f32(<4 x float> addrspace(1)* %out, <4 x float> addrspace(1)* %in) {
%b_ptr = getelementptr <4 x float> addrspace(1)* %in, i32 1
%a = load <4 x float> addrspace(1) * %in
%b = load <4 x float> addrspace(1) * %b_ptr
%result = fdiv <4 x float> %a, %b
store <4 x float> %result, <4 x float> addrspace(1)* %out
ret void
}