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1// RUN: %clang_cc1 -triple x86_64-linux-gnu -gkey-instructions -x c++ -std=c++17 %s -debug-info-kind=line-tables-only -emit-llvm -o - \2// RUN: | FileCheck %s --implicit-check-not atomGroup --implicit-check-not atomRank3 4// RUN: %clang_cc1 -triple x86_64-linux-gnu -gkey-instructions -x c %s -debug-info-kind=line-tables-only -emit-llvm -o - \5// RUN: | FileCheck %s --implicit-check-not atomGroup --implicit-check-not atomRank6 7// Perennial question: should the `dec` be in its own source atom or not8// (currently it is).9 10// We've made the cmp and br separate source atoms for now, to match existing11// behaviour in this case:12// 1. while (13// 2. int i = --End14// 3. ) {15// 4. useValue(i);16// 5. }17// Without Key Instructions we go: 2, 1[, 4, 2, 1]+18// Without separating cmp and br with Key Instructions we'd get:19// 1[, 4, 1]+. If we made the cmp higher precedence than the20// br and had them in the same group, we could get:21// 2, [4, 2]+ which might be nicer. FIXME: do that later.22 23void a(int A) {24// CHECK: %dec = add nsw i32 %0, -1, !dbg [[G1R2:!.*]]25// CHECK: store i32 %dec, ptr %A.addr{{.*}}, !dbg [[G1R1:!.*]]26// CHECK: %tobool = icmp ne i32 %dec, 0, !dbg [[G2R1:!.*]]27// CHECK: br i1 %tobool, label %while.body, label %while.end, !dbg [[G3R1:!.*]]28 while (--A) { };29 30// CHECK: ret{{.*}}, !dbg [[RET:!.*]]31}32 33// CHECK: [[G1R2]] = !DILocation({{.*}}, atomGroup: 1, atomRank: 2)34// CHECK: [[G1R1]] = !DILocation({{.*}}, atomGroup: 1, atomRank: 1)35// CHECK: [[G2R1]] = !DILocation({{.*}}, atomGroup: 2, atomRank: 1)36// CHECK: [[G3R1]] = !DILocation({{.*}}, atomGroup: 3, atomRank: 1)37// CHECK: [[RET]] = !DILocation({{.*}}, atomGroup: 4, atomRank: 1)38