File: riscv32-xtheadbb.c

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (23 lines) | stat: -rw-r--r-- 880 bytes parent folder | download | duplicates (10)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
// RUN: %clang_cc1 -triple riscv32 -target-feature +xtheadbb -emit-llvm %s -o - \
// RUN:     -disable-O0-optnone | opt -S -passes=mem2reg \
// RUN:     | FileCheck %s  -check-prefix=RV32XTHEADBB

// RV32XTHEADBB-LABEL: @clz_32(
// RV32XTHEADBB-NEXT:  entry:
// RV32XTHEADBB-NEXT:    [[TMP0:%.*]] = call i32 @llvm.ctlz.i32(i32 [[A:%.*]], i1 false)
// RV32XTHEADBB-NEXT:    ret i32 [[TMP0]]
//
unsigned int clz_32(unsigned int a) {
  return __builtin_riscv_clz_32(a);
}

// RV32XTHEADBB-LABEL: @clo_32(
// RV32XTHEADBB-NEXT:  entry:
// RV32XTHEADBB-NEXT:    [[NOT:%.*]] = xor i32 [[A:%.*]], -1
// RV32XTHEADBB-NEXT:    [[TMP0:%.*]] = call i32 @llvm.ctlz.i32(i32 [[NOT]], i1 false)
// RV32XTHEADBB-NEXT:    ret i32 [[TMP0]]
//
unsigned int clo_32(unsigned int a) {
  return __builtin_riscv_clz_32(~a);
}