1; RUN: llc -mtriple=sparc-none-linux-gnu < %s | FileCheck %s 2 3; This test checks that LLVM can do basic stripping and reapplying of branches 4; to basic blocks. 5 6declare void @test_true() 7declare void @test_false() 8 9; !0 corresponds to a branch being taken, !1 to not being takne. 10!0 = !{!"branch_weights", i32 64, i32 4} 11!1 = !{!"branch_weights", i32 4, i32 64} 12 13define void @test_Bcc_fallthrough_taken(i32 %in) nounwind { 14; CHECK-LABEL: test_Bcc_fallthrough_taken: 15 %tst = icmp eq i32 %in, 42 16 br i1 %tst, label %true, label %false, !prof !0 17 18; CHECK: cmp {{%[goli][0-9]+}}, 42 19; CHECK: bne [[FALSE:.LBB[0-9]+_[0-9]+]] 20; CHECK-NEXT: nop 21; CHECK-NEXT: ! BB# 22; CHECK-NEXT: call test_true 23 24; CHECK: [[FALSE]]: 25; CHECK: call test_false 26 27true: 28 call void @test_true() 29 ret void 30 31false: 32 call void @test_false() 33 ret void 34} 35 36define void @test_Bcc_fallthrough_nottaken(i32 %in) nounwind { 37; CHECK-LABEL: test_Bcc_fallthrough_nottaken: 38 %tst = icmp eq i32 %in, 42 39 br i1 %tst, label %true, label %false, !prof !1 40 41; CHECK: cmp {{%[goli][0-9]+}}, 42 42 43; CHECK: be [[TRUE:.LBB[0-9]+_[0-9]+]] 44; CHECK-NEXT: nop 45; CHECK-NEXT: ! BB# 46; CHECK-NEXT: call test_false 47 48; CHECK: [[TRUE]]: 49; CHECK: call test_true 50 51true: 52 call void @test_true() 53 ret void 54 55false: 56 call void @test_false() 57 ret void 58} 59