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| ; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -amdgpu-s-branch-bits=4 < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX10 %s
; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -amdgpu-s-branch-bits=4 < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9 %s
; Make sure the code size estimate for inline asm is 12-bytes per
; instruction, rather than 8 in previous generations.
; GCN-LABEL: {{^}}long_forward_branch_gfx10only:
; GFX9: s_cmp_eq_u32
; GFX9-NEXT: s_cbranch_scc1
; GFX10: s_cmp_eq_u32
; GFX10-NEXT: s_cbranch_scc0
; GFX10: s_getpc_b64
; GFX10: s_add_u32
; GFX10: s_addc_u32
; GFX10: s_setpc_b64
define amdgpu_kernel void @long_forward_branch_gfx10only(i32 addrspace(1)* %arg, i32 %cnd) #0 {
bb0:
%cmp = icmp eq i32 %cnd, 0
br i1 %cmp, label %bb3, label %bb2 ; +9 dword branch
bb2:
; Estimated as 40-bytes on gfx10 (requiring a long branch), but
; 16-bytes on gfx9 (allowing a short branch)
call void asm sideeffect
"v_nop_e64
v_nop_e64", ""() #0
br label %bb3
bb3:
store volatile i32 %cnd, i32 addrspace(1)* %arg
ret void
}
|