| // 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 |