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1// Test if PGO sample use preparation passes are executed correctly.2//3// Ensure that instcombine is executed after simplifycfg and sroa so that4// "a < 255" will not be converted to a * 256 < 255 * 256.5// RUN: %clang_cc1 -O2 -fprofile-sample-use=%S/Inputs/pgo-sample.prof %s -emit-llvm -o - 2>&1 | FileCheck %s6 7void bar(int);8void foo(int x, int y, int z) {9 int m;10 for (m = 0; m < x ; m++) {11 int a = (((y >> 8) & 0xff) * z) / 256;12 bar(a < 255 ? a : 255);13 }14}15 16// CHECK-NOT: icmp slt i32 %mul, 6528017