18f9351223
The compiler was generating symbols in the final code object for local branch target labels. This bloats the code object, slows down the loader, and is only used to simplify disassembly. Use '--symbolize-operands' with llvm-objdump to improve readability of the branch target operands in disassembly. Fixes: SWDEV-312223 Reviewed By: scott.linder Differential Revision: https://reviews.llvm.org/D114273
38 lines
966 B
LLVM
38 lines
966 B
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; GCN-LABEL: {{^}}test_dont_clobber_scc:
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; GCN: ; %entry
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; GCN: s_cmp_eq_u32 s0, 0
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; GCN: s_cbranch_scc1 [[EXIT:.LBB[0-9_]+]]
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; GCN: ; %blocka
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; GCN: s_cmp_eq_u32 s1, 0
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; GCN: s_cbranch_scc1 [[PREEXIT:.LBB[0-9_]+]]
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; GCN: [[PREEXIT]]:
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; GCN: [[EXIT]]:
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define amdgpu_vs float @test_dont_clobber_scc(i32 inreg %uni, i32 inreg %uni2) #0 {
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entry:
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%cc.uni = icmp eq i32 %uni, 0
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br i1 %cc.uni, label %exit, label %blocka
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blocka:
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call void asm sideeffect "; dummy a", ""()
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%cc.uni2 = icmp eq i32 %uni2, 0
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br i1 %cc.uni2, label %exit, label %blockb
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blockb:
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call void asm sideeffect "; dummy b", ""()
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br label %exit
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exit:
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%cc.phi = phi i1 [ true, %entry ], [ false, %blocka ], [ false, %blockb ]
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call void asm sideeffect "; dummy exit", ""()
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%r = select i1 %cc.phi, float 1.0, float 2.0
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ret float %r
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}
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attributes #0 = { nounwind }
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