File: thinlto-slp-vectorize-pm.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-- 1,213 bytes parent folder | download | duplicates (13)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
// REQUIRES: x86-registered-target
// RUN: %clang_cc1 -o %t.o -O2 -flto=thin -triple x86_64-unknown-linux-gnu -emit-llvm-bc %s
// RUN: llvm-lto -thinlto -o %t %t.o

// Test to ensure the slp vectorize codegen option is passed down to the
// ThinLTO backend. -vectorize-slp is a cc1 option and will be added
// automatically when O2/O3/Os/Oz is available for clang. Also check that
// "-mllvm -vectorize-slp=false" will disable slp vectorization, overriding
// the cc1 option.
//
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -O2 -vectorize-slp -o - -x ir %t.o -fthinlto-index=%t.thinlto.bc 2>&1 | FileCheck %s --check-prefix=SLP
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -O2 -vectorize-slp -mllvm -vectorize-slp=false -o - -x ir %t.o -fthinlto-index=%t.thinlto.bc 2>&1 | FileCheck %s --check-prefix=NOSLP
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -O0 -vectorize-slp -o - -x ir %t.o -fthinlto-index=%t.thinlto.bc 2>&1 | FileCheck %s --check-prefix=NOSLP
// SLP: extractelement
// NOSLP-NOT: extractelement

int foo(double *A, int n, int m) {
  double sum = 0, v1 = 2, v0 = 3;
  for (int i=0; i < n; ++i)
    sum += 7*A[i*2] + 7*A[i*2+1];
  return sum;
}