56 lines
1.4 KiB
LLVM
56 lines
1.4 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -march=xcore | FileCheck %s
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declare i8 @llvm.bitreverse.i8(i8)
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declare i16 @llvm.bitreverse.i16(i16)
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declare i32 @llvm.bitreverse.i32(i32)
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declare i64 @llvm.bitreverse.i64(i64)
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define i8 @bitrev8(i8 %x) nounwind {
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; CHECK-LABEL: bitrev8:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: bitrev r0, r0
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; CHECK-NEXT: shr r0, r0, 24
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; CHECK-NEXT: retsp 0
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; CHECK-NEXT: .cc_bottom bitrev8.function
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entry:
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%0 = call i8 @llvm.bitreverse.i8(i8 %x)
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ret i8 %0
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}
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define i16 @bitrev16(i16 %x) nounwind {
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; CHECK-LABEL: bitrev16:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: bitrev r0, r0
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; CHECK-NEXT: shr r0, r0, 16
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; CHECK-NEXT: retsp 0
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; CHECK-NEXT: .cc_bottom bitrev16.function
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entry:
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%0 = call i16 @llvm.bitreverse.i16(i16 %x)
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ret i16 %0
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}
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define i32 @bitrev32(i32 %x) nounwind {
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; CHECK-LABEL: bitrev32:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: bitrev r0, r0
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; CHECK-NEXT: retsp 0
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; CHECK-NEXT: .cc_bottom bitrev32.function
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entry:
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%0 = call i32 @llvm.bitreverse.i32(i32 %x)
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ret i32 %0
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}
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define i64 @bitrev64(i64 %x) nounwind {
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; CHECK-LABEL: bitrev64:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: bitrev r2, r1
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; CHECK-NEXT: bitrev r1, r0
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; CHECK-NEXT: mov r0, r2
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; CHECK-NEXT: retsp 0
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; CHECK-NEXT: .cc_bottom bitrev64.function
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entry:
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%0 = call i64 @llvm.bitreverse.i64(i64 %x)
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ret i64 %0
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}
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