derek.holloway
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102 lines
3.0 KiB
LLVM
102 lines
3.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=aarch64-- | FileCheck %s --check-prefixes=CHECK,CHECK-SD
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; RUN: llc < %s -mtriple=aarch64-- -global-isel | FileCheck %s --check-prefixes=CHECK,CHECK-GI
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define i32 @func(i32 %x, i32 %y) nounwind {
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; CHECK-SD-LABEL: func:
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; CHECK-SD: // %bb.0:
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; CHECK-SD-NEXT: subs w8, w0, w1
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; CHECK-SD-NEXT: csel w0, wzr, w8, lo
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; CHECK-SD-NEXT: ret
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;
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; CHECK-GI-LABEL: func:
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; CHECK-GI: // %bb.0:
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; CHECK-GI-NEXT: subs w8, w0, w1
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; CHECK-GI-NEXT: cset w9, lo
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; CHECK-GI-NEXT: tst w9, #0x1
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; CHECK-GI-NEXT: csel w0, wzr, w8, ne
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; CHECK-GI-NEXT: ret
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%tmp = call i32 @llvm.usub.sat.i32(i32 %x, i32 %y);
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ret i32 %tmp;
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}
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define i64 @func2(i64 %x, i64 %y) nounwind {
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; CHECK-SD-LABEL: func2:
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; CHECK-SD: // %bb.0:
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; CHECK-SD-NEXT: subs x8, x0, x1
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; CHECK-SD-NEXT: csel x0, xzr, x8, lo
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; CHECK-SD-NEXT: ret
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;
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; CHECK-GI-LABEL: func2:
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; CHECK-GI: // %bb.0:
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; CHECK-GI-NEXT: subs x8, x0, x1
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; CHECK-GI-NEXT: cset w9, lo
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; CHECK-GI-NEXT: tst w9, #0x1
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; CHECK-GI-NEXT: csel x0, xzr, x8, ne
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; CHECK-GI-NEXT: ret
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%tmp = call i64 @llvm.usub.sat.i64(i64 %x, i64 %y);
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ret i64 %tmp;
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}
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define i16 @func16(i16 %x, i16 %y) nounwind {
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; CHECK-SD-LABEL: func16:
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; CHECK-SD: // %bb.0:
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; CHECK-SD-NEXT: and w8, w0, #0xffff
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; CHECK-SD-NEXT: subs w8, w8, w1, uxth
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; CHECK-SD-NEXT: csel w0, wzr, w8, lo
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; CHECK-SD-NEXT: ret
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;
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; CHECK-GI-LABEL: func16:
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; CHECK-GI: // %bb.0:
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; CHECK-GI-NEXT: and w8, w0, #0xffff
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; CHECK-GI-NEXT: sub w8, w8, w1, uxth
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; CHECK-GI-NEXT: cmp w8, w8, uxth
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; CHECK-GI-NEXT: csel w0, wzr, w8, ne
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; CHECK-GI-NEXT: ret
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%tmp = call i16 @llvm.usub.sat.i16(i16 %x, i16 %y);
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ret i16 %tmp;
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}
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define i8 @func8(i8 %x, i8 %y) nounwind {
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; CHECK-SD-LABEL: func8:
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; CHECK-SD: // %bb.0:
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; CHECK-SD-NEXT: and w8, w0, #0xff
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; CHECK-SD-NEXT: subs w8, w8, w1, uxtb
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; CHECK-SD-NEXT: csel w0, wzr, w8, lo
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; CHECK-SD-NEXT: ret
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;
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; CHECK-GI-LABEL: func8:
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; CHECK-GI: // %bb.0:
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; CHECK-GI-NEXT: and w8, w0, #0xff
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; CHECK-GI-NEXT: sub w8, w8, w1, uxtb
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; CHECK-GI-NEXT: cmp w8, w8, uxtb
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; CHECK-GI-NEXT: csel w0, wzr, w8, ne
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; CHECK-GI-NEXT: ret
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%tmp = call i8 @llvm.usub.sat.i8(i8 %x, i8 %y);
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ret i8 %tmp;
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}
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define i4 @func3(i4 %x, i4 %y) nounwind {
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; CHECK-SD-LABEL: func3:
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; CHECK-SD: // %bb.0:
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; CHECK-SD-NEXT: and w8, w1, #0xf
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; CHECK-SD-NEXT: and w9, w0, #0xf
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; CHECK-SD-NEXT: subs w8, w9, w8
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; CHECK-SD-NEXT: csel w0, wzr, w8, lo
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; CHECK-SD-NEXT: ret
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;
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; CHECK-GI-LABEL: func3:
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; CHECK-GI: // %bb.0:
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; CHECK-GI-NEXT: and w8, w0, #0xf
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; CHECK-GI-NEXT: and w9, w1, #0xf
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; CHECK-GI-NEXT: sub w8, w8, w9
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; CHECK-GI-NEXT: and w9, w8, #0xf
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; CHECK-GI-NEXT: cmp w8, w9
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; CHECK-GI-NEXT: csel w0, wzr, w8, ne
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; CHECK-GI-NEXT: ret
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%tmp = call i4 @llvm.usub.sat.i4(i4 %x, i4 %y);
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ret i4 %tmp;
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}
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;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
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; CHECK: {{.*}}
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