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Diffstat (limited to 'test/CodeGen/AMDGPU/fdiv.ll')
-rw-r--r-- | test/CodeGen/AMDGPU/fdiv.ll | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/test/CodeGen/AMDGPU/fdiv.ll b/test/CodeGen/AMDGPU/fdiv.ll new file mode 100644 index 000000000000..7cbf87336399 --- /dev/null +++ b/test/CodeGen/AMDGPU/fdiv.ll @@ -0,0 +1,68 @@ +; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=R600 %s +; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s +; RUN: llc -march=amdgcn -mcpu=tonga -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>, <4 x float> addrspace(1)* %in, i32 1 + %a = load <4 x float>, <4 x float> addrspace(1) * %in + %b = load <4 x float>, <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 +} |