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; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
; GCN-LABEL: {{^}}test_dont_clobber_scc:
; GCN: ; %entry
; GCN: s_cmp_eq_u32 s0, 0
; GCN: s_cbranch_scc1 [[PREEXIT:BB[0-9_]+]]
; GCN: ; %blocka
; GCN: s_xor_b64 s[{{[0-9:]+}}], exec, -1
; GCN: s_cmp_eq_u32 s1, 0
; GCN: s_cbranch_scc1 [[EXIT:BB[0-9_]+]]
; GCN: [[PREEXIT]]:
; GCN: [[EXIT]]:
define amdgpu_vs float @test_dont_clobber_scc(i32 inreg %uni, i32 inreg %uni2) #0 {
entry:
%cc.uni = icmp eq i32 %uni, 0
br i1 %cc.uni, label %exit, label %blocka
blocka:
call void asm sideeffect "; dummy a", ""()
%cc.uni2 = icmp eq i32 %uni2, 0
br i1 %cc.uni2, label %exit, label %blockb
blockb:
call void asm sideeffect "; dummy b", ""()
br label %exit
exit:
%cc.phi = phi i1 [ true, %entry ], [ false, %blocka ], [ false, %blockb ]
call void asm sideeffect "; dummy exit", ""()
%r = select i1 %cc.phi, float 1.0, float 2.0
ret float %r
}
attributes #0 = { nounwind }
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