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
67 lines
1.6 KiB
LLVM
67 lines
1.6 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=verde < %s | FileCheck %s
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; Test a simple uniform loop that lives inside non-uniform control flow.
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; CHECK-LABEL: {{^}}test1:
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; CHECK: v_cmp_ne_u32_e32 vcc, 0
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; CHECK: s_and_saveexec_b64
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; CHECK-NEXT: s_cbranch_execz .LBB{{[0-9]+_[0-9]+}}
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; CHECK: [[LOOP_BODY_LABEL:.LBB[0-9]+_[0-9]+]]: ; %loop_body
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; CHECK: s_cbranch_scc1 [[LOOP_BODY_LABEL]]
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; CHECK: s_endpgm
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define amdgpu_ps void @test1(<8 x i32> inreg %rsrc, <2 x i32> %addr.base, i32 %y, i32 %p) {
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main_body:
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%cc = icmp eq i32 %p, 0
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br i1 %cc, label %out, label %loop_body
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loop_body:
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%counter = phi i32 [ 0, %main_body ], [ %incr, %loop_body ]
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; Prevent the loop from being optimized out
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call void asm sideeffect "", "" ()
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%incr = add i32 %counter, 1
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%lc = icmp sge i32 %incr, 1000
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br i1 %lc, label %out, label %loop_body
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out:
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ret void
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}
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; CHECK-LABEL: {{^}}test2:
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; CHECK: s_and_saveexec_b64
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; CHECK-NEXT: s_cbranch_execz
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define amdgpu_kernel void @test2(i32 addrspace(1)* %out, i32 %a, i32 %b) {
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main_body:
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%tid = call i32 @llvm.amdgcn.workitem.id.x() #1
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%cc = icmp eq i32 %tid, 0
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br i1 %cc, label %done1, label %if
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if:
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%cmp = icmp eq i32 %a, 0
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br i1 %cmp, label %done0, label %loop_body
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loop_body:
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%counter = phi i32 [ 0, %if ], [0, %done0], [ %incr, %loop_body ]
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; Prevent the loop from being optimized out
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call void asm sideeffect "", "" ()
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%incr = add i32 %counter, 1
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%lc = icmp sge i32 %incr, 1000
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br i1 %lc, label %done1, label %loop_body
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done0:
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%cmp0 = icmp eq i32 %b, 0
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br i1 %cmp0, label %done1, label %loop_body
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done1:
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ret void
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}
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declare i32 @llvm.amdgcn.workitem.id.x() #1
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attributes #1 = { nounwind readonly }
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