1 // Test if PGO sample use preparation passes are executed correctly. 2 // 3 // Ensure that instcombine is executed after simplifycfg and sroa so that 4 // "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 %s 6 7 void bar(int); 8 void 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, 65280 17
