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c0b2c10e9f
Set the default processor version to v68 when the user does not specify one in the command line. This includes changes in the LLVM backed and linker (lld). Since lld normally sets the version based on inputs, this change will only affect cases when there are no inputs. Fixes #127558
71 lines
2.1 KiB
LLVM
71 lines
2.1 KiB
LLVM
; RUN: llc -mtriple=hexagon < %s | FileCheck %s
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; The early return is predicated, and the save-restore code is mixed together:
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; {
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; p0 = cmp.eq(r0, #0)
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; if (p0.new) r17:16 = memd(r29 + #0)
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; memd(r29+#0) = r17:16
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; }
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; {
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; if (p0) dealloc_return
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; }
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; The problem is that the load will execute before the store, clobbering the
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; pair r17:16.
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;
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; Validate that store executes before load.
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; CHECK: memd{{.*}} = r17:16
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; CHECK: r17:16 = memd
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; CHECK: } :mem_noshuf
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; CHECK-LABEL: LBB0_1:
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target triple = "hexagon"
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%struct.0 = type { ptr, ptr, ptr, ptr, ptr }
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%struct.1 = type { [60 x i8], i32, ptr }
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%struct.2 = type { i8, i8, i8, i8, %union.anon }
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%union.anon = type { ptr }
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%struct.3 = type { ptr, ptr }
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@var = external hidden unnamed_addr global ptr, align 4
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declare void @bar(ptr, i32) local_unnamed_addr #0
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define void @foo() local_unnamed_addr #1 {
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entry:
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%.pr = load ptr, ptr @var, align 4, !tbaa !1
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%cmp2 = icmp eq ptr %.pr, null
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br i1 %cmp2, label %while.end, label %while.body.preheader
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while.body.preheader: ; preds = %entry
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br label %while.body
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while.body: ; preds = %while.body.preheader, %while.body
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%0 = phi ptr [ %4, %while.body ], [ %.pr, %while.body.preheader ]
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%right = getelementptr inbounds %struct.0, ptr %0, i32 0, i32 4
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%1 = bitcast ptr %right to ptr
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%2 = load i32, ptr %1, align 4, !tbaa !5
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%3 = bitcast ptr %0 to ptr
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tail call void @bar(ptr %3, i32 20) #1
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store i32 %2, ptr @var, align 4, !tbaa !1
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%4 = inttoptr i32 %2 to ptr
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%cmp = icmp eq i32 %2, 0
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br i1 %cmp, label %while.end.loopexit, label %while.body
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while.end.loopexit: ; preds = %while.body
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br label %while.end
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while.end: ; preds = %while.end.loopexit, %entry
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ret void
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}
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attributes #0 = { optsize }
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attributes #1 = { nounwind optsize }
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!1 = !{!2, !2, i64 0}
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!2 = !{!"any pointer", !3, i64 0}
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!3 = !{!"omnipotent char", !4, i64 0}
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!4 = !{!"Simple C/C++ TBAA"}
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!5 = !{!6, !2, i64 16}
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!6 = !{!"0", !2, i64 0, !2, i64 4, !2, i64 8, !2, i64 12, !2, i64 16}
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