File: riscv32-xtheadbb.c

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (23 lines) | stat: -rw-r--r-- 880 bytes parent folder | download | duplicates (12)
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);
}