6dc8c2dada
Summary: Previously this code only looked through a single level of aliases to find the underlying function. This patch changes it to continue until it finds the end. Aliases that form a cycle are illegal IR, so we shouldn't need to worry about infinite loops. Fixes https://github.com/llvm/llvm-project/issues/96812
57 lines
1.9 KiB
LLVM
57 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=amdgcn -verify-machineinstrs %s -o - | FileCheck %s
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@foo_a = alias void (ptr), ptr @foo
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@bar_a = alias void (ptr), ptr @foo_a
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define void @foo() {
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; CHECK-LABEL: foo:
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; CHECK: ; %bb.0: ; %entry
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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entry:
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ret void
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}
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define void @bar() {
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; CHECK-LABEL: bar:
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; CHECK: ; %bb.0: ; %entry
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: s_mov_b32 s16, s33
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; CHECK-NEXT: s_mov_b32 s33, s32
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; CHECK-NEXT: s_or_saveexec_b64 s[18:19], -1
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; CHECK-NEXT: buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
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; CHECK-NEXT: s_mov_b64 exec, s[18:19]
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; CHECK-NEXT: s_waitcnt expcnt(0)
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; CHECK-NEXT: v_writelane_b32 v40, s16, 2
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; CHECK-NEXT: s_addk_i32 s32, 0x400
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; CHECK-NEXT: v_writelane_b32 v40, s30, 0
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; CHECK-NEXT: v_writelane_b32 v40, s31, 1
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; CHECK-NEXT: s_getpc_b64 s[16:17]
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; CHECK-NEXT: s_add_u32 s16, s16, bar_a@gotpcrel32@lo+4
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; CHECK-NEXT: s_addc_u32 s17, s17, bar_a@gotpcrel32@hi+12
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; CHECK-NEXT: s_load_dwordx2 s[16:17], s[16:17], 0x0
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; CHECK-NEXT: v_mov_b32_e32 v0, 0
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; CHECK-NEXT: v_mov_b32_e32 v1, 0
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; CHECK-NEXT: s_waitcnt lgkmcnt(0)
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; CHECK-NEXT: s_swappc_b64 s[30:31], s[16:17]
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; CHECK-NEXT: v_readlane_b32 s31, v40, 1
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; CHECK-NEXT: v_readlane_b32 s30, v40, 0
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; CHECK-NEXT: v_readlane_b32 s4, v40, 2
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; CHECK-NEXT: s_or_saveexec_b64 s[6:7], -1
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; CHECK-NEXT: buffer_load_dword v40, off, s[0:3], s33 ; 4-byte Folded Reload
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; CHECK-NEXT: s_mov_b64 exec, s[6:7]
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; CHECK-NEXT: s_addk_i32 s32, 0xfc00
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; CHECK-NEXT: s_mov_b32 s33, s4
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; CHECK-NEXT: s_waitcnt vmcnt(0)
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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entry:
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call void @bar_a(ptr null)
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ret void
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}
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; UTC_ARGS: --disable
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; CHECK: .set foo_a, foo
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; CHECK: .set bar_a, foo_a
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; UTC_ARGS: --enable
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