diff options
Diffstat (limited to 'test/CodeGen/R600/sgpr-control-flow.ll')
| -rw-r--r-- | test/CodeGen/R600/sgpr-control-flow.ll | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/test/CodeGen/R600/sgpr-control-flow.ll b/test/CodeGen/R600/sgpr-control-flow.ll index d8b8dff..f0236ac 100644 --- a/test/CodeGen/R600/sgpr-control-flow.ll +++ b/test/CodeGen/R600/sgpr-control-flow.ll @@ -1,4 +1,4 @@ -; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs< %s | FileCheck -check-prefix=SI %s +; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs< %s | FileCheck -check-prefix=SI %s ; ; ; Most SALU instructions ignore control flow, so we need to make sure @@ -59,6 +59,47 @@ endif: ret void } +; FIXME: Should write to different SGPR pairs instead of copying to +; VALU for i1 phi. + +; SI-LABEL: {{^}}sgpr_if_else_valu_cmp_phi_br: +; SI: buffer_load_dword [[AVAL:v[0-9]+]] +; SI: v_cmp_lt_i32_e64 [[CMP_IF:s\[[0-9]+:[0-9]+\]]], [[AVAL]], 0 +; SI: v_cndmask_b32_e64 [[V_CMP:v[0-9]+]], 0, -1, [[CMP_IF]] + +; SI: BB2_1: +; SI: buffer_load_dword [[AVAL:v[0-9]+]] +; SI: v_cmp_eq_i32_e64 [[CMP_ELSE:s\[[0-9]+:[0-9]+\]]], [[AVAL]], 0 +; SI: v_cndmask_b32_e64 [[V_CMP]], 0, -1, [[CMP_ELSE]] + +; SI: v_cmp_ne_i32_e64 [[CMP_CMP:s\[[0-9]+:[0-9]+\]]], [[V_CMP]], 0 +; SI: v_cndmask_b32_e64 [[RESULT:v[0-9]+]], 0, -1, [[CMP_CMP]] +; SI: buffer_store_dword [[RESULT]] +define void @sgpr_if_else_valu_cmp_phi_br(i32 addrspace(1)* %out, i32 addrspace(1)* %a, i32 addrspace(1)* %b) { +entry: + %tid = call i32 @llvm.r600.read.tidig.x() #0 + %tmp1 = icmp eq i32 %tid, 0 + br i1 %tmp1, label %if, label %else + +if: + %gep.if = getelementptr i32 addrspace(1)* %a, i32 %tid + %a.val = load i32 addrspace(1)* %gep.if + %cmp.if = icmp eq i32 %a.val, 0 + br label %endif + +else: + %gep.else = getelementptr i32 addrspace(1)* %b, i32 %tid + %b.val = load i32 addrspace(1)* %gep.else + %cmp.else = icmp slt i32 %b.val, 0 + br label %endif + +endif: + %tmp4 = phi i1 [%cmp.if, %if], [%cmp.else, %else] + %ext = sext i1 %tmp4 to i32 + store i32 %ext, i32 addrspace(1)* %out + ret void +} + declare i32 @llvm.r600.read.tidig.x() #0 attributes #0 = { readnone } |