69 lines · plain
1; REQUIRES: asserts2; Test default using size of profile as a proxy3; RUN: llvm-profgen --format=text --perfscript=%S/Inputs/cs-preinline-cost.perfscript --binary=%S/Inputs/cs-preinline-cost.perfbin --csspgo-preinliner --debug-only=cs-preinliner --use-context-cost-for-preinliner=0 --output=/dev/null 2>&1 | FileCheck %s --check-prefix=CHECK-DEFAULT4 5; Test use-context-cost-for-preinliner using inlinee's byte size as context-sensitive inline cost6; RUN: llvm-profgen --format=text --perfscript=%S/Inputs/cs-preinline-cost.perfscript --binary=%S/Inputs/cs-preinline-cost.perfbin --csspgo-preinliner --debug-only=cs-preinliner --use-context-cost-for-preinliner --output=/dev/null 2>&1 | FileCheck %s --check-prefix=CHECK-CSCOST7 8CHECK-DEFAULT: Process main for context-sensitive pre-inlining (pre-inline size: 9, size limit: 108)9CHECK-DEFAULT-NEXT: Inlined context profile for: main:9 @ _Z3fooi (callee size: 2, call count:545)10CHECK-DEFAULT-NEXT: Inlined context profile for: main:7 @ _Z3fooi (callee size: 14, call count:545)11CHECK-DEFAULT-NEXT: Inlined context profile for: main:8 @ _Z3fooi (callee size: 4, call count:544)12 13CHECK-CSCOST: Process main for context-sensitive pre-inlining (pre-inline size: 69, size limit: 828)14; This inlinee is fully optimized away, make sure we have the correct zero size for that context even if the size is15; not available through symbolization.16CHECK-CSCOST-NEXT: Inlined context profile for: main:9 @ _Z3fooi (callee size: 0, call count:545)17CHECK-CSCOST-NEXT: Inlined context profile for: main:7 @ _Z3fooi (callee size: 279, call count:545)18CHECK-CSCOST-NEXT: Inlined context profile for: main:8 @ _Z3fooi (callee size: 44, call count:544)19 20; binary is built with the source below using the following command line:21; clang -O3 -g -fpseudo-probe-for-profiling test.cpp22;23;#include <stdio.h>24;25;volatile int state = 9000;26;27;int foo(int x) {28; if (x == 0) {29; return 7;30; }31;32; if ((x & 1) == 0) {33; state--;34; return 9;35; }36;37; if (state > 5000) {38; while (state > 5000) {39; for (int i = 50; i >= 0; i--) {40; state *= 6;41; state /= 7;42; state -= 1;43; }44; }45; }46; else {47; while (state < 5000) {48; for (int i = 50; i >= 0; i--) {49; state *= 6;50; state /= 5;51; state += 1;52; }53; }54; }55;56; return state;57;}58;59;volatile int cnt = 10000000;//10000000;60;int main() {61; int r = 0;62; for (int i = 0; i < cnt; i++) {63; r += foo(i);64; r -= foo(i & (~1));65; r += foo(0);66; }67; return r;68;}69