derek.holloway
7502bf64a4
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80 lines
2.4 KiB
LLVM
80 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
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; and can be eliminated
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define i32 @test_call_known_max_range() #0 {
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; CHECK-LABEL: test_call_known_max_range:
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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: bl foo
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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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%id = tail call i32 @foo(), !range !0, !noundef !{}
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%and = and i32 %id, 1023
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ret i32 %and
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}
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define i32 @test_call_known_trunc_1_bit_range() #0 {
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; CHECK-LABEL: test_call_known_trunc_1_bit_range:
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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: bl foo
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; CHECK-NEXT: and w0, w0, #0x1ff
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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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%id = tail call i32 @foo(), !range !0, !noundef !{}
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%and = and i32 %id, 511
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ret i32 %and
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}
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define i32 @test_call_known_max_range_m1() #0 {
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; CHECK-LABEL: test_call_known_max_range_m1:
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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: bl foo
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; CHECK-NEXT: and w0, w0, #0xff
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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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%id = tail call i32 @foo(), !range !1, !noundef !{}
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%and = and i32 %id, 255
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ret i32 %and
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}
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; and can be eliminated
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define i32 @test_call_known_max_range_attr() #0 {
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; CHECK-LABEL: test_call_known_max_range_attr:
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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: bl foo
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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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%id = tail call noundef range(i32 0, 1024) i32 @foo()
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%and = and i32 %id, 1023
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ret i32 %and
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}
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define i32 @test_call_known_max_range_attr_no_noundef() #0 {
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; CHECK-LABEL: test_call_known_max_range_attr_no_noundef:
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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: bl foo
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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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%id = tail call range(i32 0, 1024) i32 @foo()
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%and = and i32 %id, 1023
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ret i32 %and
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}
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declare i32 @foo()
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attributes #0 = { norecurse nounwind }
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attributes #1 = { nounwind readnone }
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!0 = !{i32 0, i32 1024}
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!1 = !{i32 0, i32 1023}
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