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
52 lines
2.1 KiB
LLVM
52 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx906 -verify-machineinstrs < %s | FileCheck %s
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; This example used to produce a verifier error resulting from the
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; register coalescer leaving behind a false live interval when a live
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; out copy introduced new liveness for a subregister.
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define <3 x float> @liveout_undef_subrange(<3 x float> %arg) {
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; CHECK-LABEL: liveout_undef_subrange:
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; CHECK: ; %bb.0: ; %bb
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: v_add_f32_e32 v3, v2, v2
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; CHECK-NEXT: v_add_f32_e32 v1, v1, v1
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; CHECK-NEXT: v_add_f32_e32 v0, v0, v0
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; CHECK-NEXT: .LBB0_1: ; %bb1
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; CHECK-NEXT: ; =>This Loop Header: Depth=1
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; CHECK-NEXT: ; Child Loop BB0_2 Depth 2
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; CHECK-NEXT: s_mov_b64 s[4:5], 0
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; CHECK-NEXT: .LBB0_2: ; %bb1
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; CHECK-NEXT: ; Parent Loop BB0_1 Depth=1
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; CHECK-NEXT: ; => This Inner Loop Header: Depth=2
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; CHECK-NEXT: v_cmp_neq_f32_e32 vcc, 0, v2
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; CHECK-NEXT: s_or_b64 s[4:5], vcc, s[4:5]
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; CHECK-NEXT: s_andn2_b64 exec, exec, s[4:5]
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; CHECK-NEXT: s_cbranch_execnz .LBB0_2
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; CHECK-NEXT: ; %bb.3: ; %bb2
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; CHECK-NEXT: ; in Loop: Header=BB0_1 Depth=1
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; CHECK-NEXT: s_or_b64 exec, exec, s[4:5]
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; CHECK-NEXT: v_mul_f32_e32 v2, v3, v2
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; CHECK-NEXT: s_branch .LBB0_1
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bb:
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br label %bb1
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bb1: ; preds = %bb3, %bb
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%i = phi <3 x float> [ %arg, %bb ], [ %i11, %bb3 ]
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%i2 = extractelement <3 x float> %i, i64 2
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%i3 = fmul float %i2, 1.000000e+00
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%i4 = fmul nsz <3 x float> %arg, <float 2.000000e+00, float 2.000000e+00, float 2.000000e+00>
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%i5 = insertelement <3 x float> undef, float %i3, i32 0
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%i6 = shufflevector <3 x float> %i5, <3 x float> undef, <3 x i32> zeroinitializer
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%i7 = fmul <3 x float> %i4, %i6
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%i8 = fcmp oeq float %i3, 0.000000e+00
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br i1 %i8, label %bb3, label %bb2
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bb2: ; preds = %bb1
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br label %bb3
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bb3: ; preds = %bb2, %bb1
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%i11 = phi <3 x float> [ %i7, %bb2 ], [ %i, %bb1 ]
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br label %bb1
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}
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