File: NoSignedUnsignedWrap.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (29 lines) | stat: -rw-r--r-- 941 bytes parent folder | download | duplicates (4) 
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
 
;; Source
;; int square(unsigned short a) {
;;   return a * a;
;; }
;; Command
;; clang -cc1 -triple spir -emit-llvm -O2 -o NoSignedUnsignedWrap.ll test.cl
;;
;; Positive tests:
;;
; RUN: llc -O0 -mtriple=spirv32-unknown-unknown %s -o - | FileCheck %s --check-prefixes=CHECK-SPIRV,CHECK-SPIRV-NEGATIVE
;;
;; Negative tests:
;;
;; Check that backend is able to skip nsw/nuw attributes if extension is
;; disabled implicitly or explicitly and if max SPIR-V version is lower then 1.4

; CHECK-SPIRV-DAG: OpDecorate %[[#]] NoSignedWrap
; CHECK-SPIRV-DAG: OpDecorate %[[#]] NoUnsignedWrap
;
; CHECK-SPIRV-NEGATIVE-NOT: OpExtension "SPV_KHR_no_integer_wrap_decoration"
; CHECK-SPIRV-NEGATIVE-NOT: OpDecorate %[[#]] NoSignedWrap
; CHECK-SPIRV-NEGATIVE-NOT: OpDecorate %[[#]] NoUnsignedWrap

define spir_func i32 @square(i16 zeroext %a) local_unnamed_addr {
entry:
  %conv = zext i16 %a to i32
  %mul = mul nuw nsw i32 %conv, %conv
  ret i32 %mul
}