87 lines
3.4 KiB
LLVM
87 lines
3.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc -mtriple=arm64-unknown-unknown -mcpu=cyclone -pre-RA-sched=list-hybrid < %s | FileCheck %s
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; rdar://10232252
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; Prevent LSR of doing poor choice that cannot be folded in addressing mode
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; Remove the -pre-RA-sched=list-hybrid option after fixing:
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; <rdar://problem/12702735> [ARM64][coalescer] need better register
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; coalescing for simple unit tests.
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define i32 @test_inttoptr() nounwind {
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; CHECK-LABEL: test_inttoptr:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; CHECK-NEXT: mov w8, #1288 // =0x508
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; CHECK-NEXT: mov x9, #4294967296 // =0x100000000
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; CHECK-NEXT: mov x10, #6442450944 // =0x180000000
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; CHECK-NEXT: .LBB0_1: // %while.body
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; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: ldr x11, [x9], #8
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; CHECK-NEXT: str x11, [x10], #8
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; CHECK-NEXT: subs x8, x8, #8
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; CHECK-NEXT: b.pl .LBB0_1
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; CHECK-NEXT: // %bb.2: // %while.end
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; CHECK-NEXT: mov x8, #6442450944 // =0x180000000
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; CHECK-NEXT: blr x8
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; CHECK-NEXT: mov w0, #0 // =0x0
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; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; CHECK-NEXT: ret
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entry:
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br label %while.body
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while.body: ; preds = %while.body, %entry
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%len.06 = phi i64 [ 1288, %entry ], [ %sub, %while.body ]
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%pDst.05 = phi ptr [ inttoptr (i64 6442450944 to ptr), %entry ], [ %incdec.ptr1, %while.body ]
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%pSrc.04 = phi ptr [ inttoptr (i64 4294967296 to ptr), %entry ], [ %incdec.ptr, %while.body ]
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%incdec.ptr = getelementptr inbounds i64, ptr %pSrc.04, i64 1
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%tmp = load volatile i64, ptr %pSrc.04, align 8
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%incdec.ptr1 = getelementptr inbounds i64, ptr %pDst.05, i64 1
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store volatile i64 %tmp, ptr %pDst.05, align 8
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%sub = add i64 %len.06, -8
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%cmp = icmp sgt i64 %sub, -1
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br i1 %cmp, label %while.body, label %while.end
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while.end: ; preds = %while.body
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tail call void inttoptr (i64 6442450944 to ptr)() nounwind
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ret i32 0
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}
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@g1 = external dso_local global i8
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@g2 = external dso_local global i8
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define ptr @test_globals() nounwind {
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; CHECK-LABEL: test_globals:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: mov w8, #1288 // =0x508
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; CHECK-NEXT: adrp x9, g2
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; CHECK-NEXT: add x9, x9, :lo12:g2
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; CHECK-NEXT: adrp x10, g1
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; CHECK-NEXT: add x10, x10, :lo12:g1
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; CHECK-NEXT: .LBB1_1: // %while.body
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; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: ldr x11, [x9], #8
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; CHECK-NEXT: str x11, [x10], #8
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; CHECK-NEXT: subs x8, x8, #8
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; CHECK-NEXT: b.pl .LBB1_1
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; CHECK-NEXT: // %bb.2: // %while.end
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; CHECK-NEXT: adrp x0, g1
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; CHECK-NEXT: add x0, x0, :lo12:g1
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; CHECK-NEXT: ret
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entry:
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br label %while.body
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while.body: ; preds = %while.body, %entry
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%len.06 = phi i64 [ 1288, %entry ], [ %sub, %while.body ]
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%pDst.05 = phi ptr [ @g1, %entry ], [ %incdec.ptr1, %while.body ]
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%pSrc.04 = phi ptr [ @g2, %entry ], [ %incdec.ptr, %while.body ]
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%incdec.ptr = getelementptr inbounds i64, ptr %pSrc.04, i64 1
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%tmp = load volatile i64, ptr %pSrc.04, align 8
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%incdec.ptr1 = getelementptr inbounds i64, ptr %pDst.05, i64 1
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store volatile i64 %tmp, ptr %pDst.05, align 8
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%sub = add i64 %len.06, -8
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%cmp = icmp sgt i64 %sub, -1
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br i1 %cmp, label %while.body, label %while.end
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while.end: ; preds = %while.body
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ret ptr @g1
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}
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