derek.holloway
7502bf64a4
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73 lines
2.5 KiB
LLVM
73 lines
2.5 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=xtensa < %s | FileCheck -check-prefixes=CHECK %s
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; RUN: llc --mtriple=xtensa --mattr=+windowed < %s | FileCheck -check-prefixes=CHECK-WINDOWED %s
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declare ptr @llvm.stacksave()
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declare void @llvm.stackrestore(ptr)
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declare void @use_addr(ptr)
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define void @test_saverestore(i64 %n) {
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; CHECK-LABEL: test_saverestore:
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; CHECK: .cfi_startproc
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: addi a8, a1, -16
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; CHECK-NEXT: or a1, a8, a8
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: s32i a0, a1, 8 # 4-byte Folded Spill
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; CHECK-NEXT: s32i a12, a1, 4 # 4-byte Folded Spill
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; CHECK-NEXT: s32i a15, a1, 0 # 4-byte Folded Spill
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; CHECK-NEXT: .cfi_offset a0, -4
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; CHECK-NEXT: .cfi_offset a12, -8
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; CHECK-NEXT: .cfi_offset a15, -12
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; CHECK-NEXT: or a15, a1, a1
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; CHECK-NEXT: .cfi_def_cfa_register a15
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; CHECK-NEXT: addi a8, a2, 3
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; CHECK-NEXT: movi a9, -4
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; CHECK-NEXT: and a8, a8, a9
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; CHECK-NEXT: addi a8, a8, 31
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; CHECK-NEXT: movi a9, -32
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; CHECK-NEXT: and a8, a8, a9
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; CHECK-NEXT: or a12, a1, a1
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; CHECK-NEXT: sub a1, a1, a8
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; CHECK-NEXT: or a2, a1, a1
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; CHECK-NEXT: l32r a8, .LCPI0_0
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; CHECK-NEXT: callx0 a8
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; CHECK-NEXT: or a1, a12, a12
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; CHECK-NEXT: or a1, a15, a15
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; CHECK-NEXT: l32i a15, a1, 0 # 4-byte Folded Reload
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; CHECK-NEXT: l32i a12, a1, 4 # 4-byte Folded Reload
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; CHECK-NEXT: l32i a0, a1, 8 # 4-byte Folded Reload
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; CHECK-NEXT: addi a8, a1, 16
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; CHECK-NEXT: or a1, a8, a8
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; CHECK-NEXT: ret
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;
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; CHECK-WINDOWED-LABEL: test_saverestore:
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; CHECK-WINDOWED: .cfi_startproc
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; CHECK-WINDOWED-NEXT: # %bb.0:
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; CHECK-WINDOWED-NEXT: entry a1, 32
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; CHECK-WINDOWED-NEXT: or a7, a1, a1
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; CHECK-WINDOWED-NEXT: .cfi_def_cfa a7, 32
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; CHECK-WINDOWED-NEXT: addi a8, a2, 3
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; CHECK-WINDOWED-NEXT: movi a9, -4
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; CHECK-WINDOWED-NEXT: and a8, a8, a9
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; CHECK-WINDOWED-NEXT: addi a8, a8, 31
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; CHECK-WINDOWED-NEXT: movi a9, -32
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; CHECK-WINDOWED-NEXT: and a8, a8, a9
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; CHECK-WINDOWED-NEXT: or a6, a1, a1
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; CHECK-WINDOWED-NEXT: sub a8, a1, a8
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; CHECK-WINDOWED-NEXT: movsp a1, a8
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; CHECK-WINDOWED-NEXT: or a10, a1, a1
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; CHECK-WINDOWED-NEXT: l32r a8, .LCPI0_0
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; CHECK-WINDOWED-NEXT: callx8 a8
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; CHECK-WINDOWED-NEXT: movsp a1, a6
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; CHECK-WINDOWED-NEXT: retw
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%sp = call ptr @llvm.stacksave.p0()
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%addr = alloca i8, i64 %n
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call void @use_addr(ptr %addr)
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call void @llvm.stackrestore.p0(ptr %sp)
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ret void
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}
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