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TheRock/compiler/amd-llvm/llvm/test/DebugInfo/AMDGPU/bitcast-store-combine-debugloc.ll
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2026-09-02 16:34:47 -07:00

29 lines
1.1 KiB
LLVM

; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck %s
;
; AMDGPUTargetLowering::performStoreCombine inserts a bitcast to convert
; <1 x float> to i32 for the store. That synthetic bitcast must carry the
; value's (load's) debug location, not the store's, so that when
; visitBITCAST later folds the bitcast into the load the resulting load
; retains the correct source location.
; CHECK-LABEL: test:
; CHECK: .loc 1 2 0
; CHECK-NEXT: flat_load_dword
define void @test(ptr %p, ptr %q) !dbg !4 {
%v = load <1 x float>, ptr %p, !dbg !7
store <1 x float> %v, ptr %q, !dbg !8
ret void
}
!llvm.dbg.cu = !{!0}
!9 = !{null}
!10 = !DISubroutineType(types: !9)
!llvm.module.flags = !{!2}
!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, emissionKind: LineTablesOnly)
!1 = !DIFile(filename: "t.c", directory: "")
!2 = !{i32 2, !"Debug Info Version", i32 3}
!4 = distinct !DISubprogram(name: "test", file: !1, line: 1, spFlags: DISPFlagDefinition, type: !10, unit: !0)
!7 = !DILocation(line: 2, scope: !4)
!8 = !DILocation(line: 3, scope: !4)