File: riscv32-xtheadbb.c

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (23 lines) | stat: -rw-r--r-- 880 bytes parent folder | download | duplicates (14)
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);
}