forked from OSchip/llvm-project
17 lines
517 B
C
17 lines
517 B
C
// Test if PGO sample use preparation passes are executed correctly.
|
|
//
|
|
// Ensure that instcombine is executed after simplifycfg and sroa so that
|
|
// "a < 255" will not be converted to a * 256 < 255 * 256.
|
|
// RUN: %clang_cc1 -O2 -fprofile-sample-use=%S/Inputs/pgo-sample.prof %s -emit-llvm -o - 2>&1 | FileCheck %s
|
|
|
|
void bar(int);
|
|
void foo(int x, int y, int z) {
|
|
int m;
|
|
for (m = 0; m < x ; m++) {
|
|
int a = (((y >> 8) & 0xff) * z) / 256;
|
|
bar(a < 255 ? a : 255);
|
|
}
|
|
}
|
|
|
|
// CHECK-NOT: icmp slt i32 %mul, 65280
|