File: builtin-abs.c

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (29 lines) | stat: -rw-r--r-- 827 bytes parent folder | download | duplicates (19)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s

int absi(int x) {
// CHECK-LABEL: @absi(
// CHECK:   [[NEG:%.*]] = sub nsw i32 0, [[X:%.*]]
// CHECK:   [[CMP:%.*]] = icmp slt i32 [[X]], 0
// CHECK:   [[SEL:%.*]] = select i1 [[CMP]], i32 [[NEG]], i32 [[X]]
//
  return __builtin_abs(x);
}

long absl(long x) {
// CHECK-LABEL: @absl(
// CHECK:   [[NEG:%.*]] = sub nsw i64 0, [[X:%.*]]
// CHECK:   [[CMP:%.*]] = icmp slt i64 [[X]], 0
// CHECK:   [[SEL:%.*]] = select i1 [[CMP]], i64 [[NEG]], i64 [[X]]
//
  return __builtin_labs(x);
}

long long absll(long long x) {
// CHECK-LABEL: @absll(
// CHECK:   [[NEG:%.*]] = sub nsw i64 0, [[X:%.*]]
// CHECK:   [[CMP:%.*]] = icmp slt i64 [[X]], 0
// CHECK:   [[SEL:%.*]] = select i1 [[CMP]], i64 [[NEG]], i64 [[X]]
//
  return __builtin_llabs(x);
}