46 lines · plain
1; RUN: opt -S -passes=instcombine %s -o - | FileCheck %s2 3%Complex = type { double, double }4 5; Check that instcombine preserves TBAA when narrowing loads6define double @teststructextract(ptr %val) {7; CHECK: load double, {{.*}}, !tbaa8; CHECK-NOT: load %Complex9 %loaded = load %Complex, ptr %val, !tbaa !110 %real = extractvalue %Complex %loaded, 011 ret double %real12}13 14define double @testarrayextract(ptr %val) {15; CHECK: load double, {{.*}}, !tbaa16; CHECK-NOT: load [2 x double]17 %loaded = load [2 x double], ptr %val, !tbaa !118 %real = extractvalue [2 x double] %loaded, 019 ret double %real20}21 22; Check that inscombine preserves TBAA when breaking up stores23define void @teststructinsert(ptr %loc, double %a, double %b) {24; CHECK: store double %a, {{.*}}, !tbaa25; CHECK: store double %b, {{.*}}, !tbaa26; CHECK-NOT: store %Complex27 %inserted = insertvalue %Complex undef, double %a, 028 %inserted2 = insertvalue %Complex %inserted, double %b, 129 store %Complex %inserted2, ptr %loc, !tbaa !130 ret void31}32 33define void @testarrayinsert(ptr %loc, double %a, double %b) {34; CHECK: store double %a, {{.*}}, !tbaa35; CHECK: store double %b, {{.*}}, !tbaa36; CHECK-NOT: store [2 x double]37 %inserted = insertvalue [2 x double] undef, double %a, 038 %inserted2 = insertvalue [2 x double] %inserted, double %b, 139 store [2 x double] %inserted2, ptr %loc, !tbaa !140 ret void41}42 43!0 = !{!"tbaa_root"}44!1 = !{!2, !2, i64 0}45!2 = !{!"Complex", !0, i64 0}46