1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -enable-tail-merge | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; Check that calls to baz and quux are tail-merged. 3*9880d681SAndroid Build Coastguard Worker; PR1628 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Worker; CHECK: bl _baz 6*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: bl _baz 7*9880d681SAndroid Build Coastguard Worker; CHECK: bl _quux 8*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: bl _quux 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Worker; ModuleID = 'tail.c' 11*9880d681SAndroid Build Coastguard Workertarget triple = "arm-apple-darwin8" 12*9880d681SAndroid Build Coastguard Worker 13*9880d681SAndroid Build Coastguard Workerdefine i32 @f(i32 %i, i32 %q) { 14*9880d681SAndroid Build Coastguard Workerentry: 15*9880d681SAndroid Build Coastguard Worker %i_addr = alloca i32 ; <i32*> [#uses=2] 16*9880d681SAndroid Build Coastguard Worker %q_addr = alloca i32 ; <i32*> [#uses=2] 17*9880d681SAndroid Build Coastguard Worker %retval = alloca i32, align 4 ; <i32*> [#uses=1] 18*9880d681SAndroid Build Coastguard Worker store i32 %i, i32* %i_addr 19*9880d681SAndroid Build Coastguard Worker store i32 %q, i32* %q_addr 20*9880d681SAndroid Build Coastguard Worker %tmp = load i32, i32* %i_addr ; <i32> [#uses=1] 21*9880d681SAndroid Build Coastguard Worker %tmp1 = icmp ne i32 %tmp, 0 ; <i1> [#uses=1] 22*9880d681SAndroid Build Coastguard Worker %tmp12 = zext i1 %tmp1 to i8 ; <i8> [#uses=1] 23*9880d681SAndroid Build Coastguard Worker %toBool = icmp ne i8 %tmp12, 0 ; <i1> [#uses=1] 24*9880d681SAndroid Build Coastguard Worker br i1 %toBool, label %cond_true, label %cond_false 25*9880d681SAndroid Build Coastguard Worker 26*9880d681SAndroid Build Coastguard Workercond_true: ; preds = %entry 27*9880d681SAndroid Build Coastguard Worker %tmp3 = call i32 (...) @bar( ) ; <i32> [#uses=0] 28*9880d681SAndroid Build Coastguard Worker %tmp4 = call i32 (...) @baz( i32 5, i32 6 ) ; <i32> [#uses=0] 29*9880d681SAndroid Build Coastguard Worker br label %cond_next 30*9880d681SAndroid Build Coastguard Worker 31*9880d681SAndroid Build Coastguard Workercond_false: ; preds = %entry 32*9880d681SAndroid Build Coastguard Worker %tmp5 = call i32 (...) @foo( ) ; <i32> [#uses=0] 33*9880d681SAndroid Build Coastguard Worker %tmp6 = call i32 (...) @baz( i32 5, i32 6 ) ; <i32> [#uses=0] 34*9880d681SAndroid Build Coastguard Worker br label %cond_next 35*9880d681SAndroid Build Coastguard Worker 36*9880d681SAndroid Build Coastguard Workercond_next: ; preds = %cond_false, %cond_true 37*9880d681SAndroid Build Coastguard Worker %tmp7 = load i32, i32* %q_addr ; <i32> [#uses=1] 38*9880d681SAndroid Build Coastguard Worker %tmp8 = icmp ne i32 %tmp7, 0 ; <i1> [#uses=1] 39*9880d681SAndroid Build Coastguard Worker %tmp89 = zext i1 %tmp8 to i8 ; <i8> [#uses=1] 40*9880d681SAndroid Build Coastguard Worker %toBool10 = icmp ne i8 %tmp89, 0 ; <i1> [#uses=1] 41*9880d681SAndroid Build Coastguard Worker br i1 %toBool10, label %cond_true11, label %cond_false15 42*9880d681SAndroid Build Coastguard Worker 43*9880d681SAndroid Build Coastguard Workercond_true11: ; preds = %cond_next 44*9880d681SAndroid Build Coastguard Worker %tmp13 = call i32 (...) @foo( ) ; <i32> [#uses=0] 45*9880d681SAndroid Build Coastguard Worker %tmp14 = call i32 (...) @quux( i32 3, i32 4 ) ; <i32> [#uses=0] 46*9880d681SAndroid Build Coastguard Worker br label %cond_next18 47*9880d681SAndroid Build Coastguard Worker 48*9880d681SAndroid Build Coastguard Workercond_false15: ; preds = %cond_next 49*9880d681SAndroid Build Coastguard Worker %tmp16 = call i32 (...) @bar( ) ; <i32> [#uses=0] 50*9880d681SAndroid Build Coastguard Worker %tmp17 = call i32 (...) @quux( i32 3, i32 4 ) ; <i32> [#uses=0] 51*9880d681SAndroid Build Coastguard Worker br label %cond_next18 52*9880d681SAndroid Build Coastguard Worker 53*9880d681SAndroid Build Coastguard Workercond_next18: ; preds = %cond_false15, %cond_true11 54*9880d681SAndroid Build Coastguard Worker %tmp19 = call i32 (...) @bar( ) ; <i32> [#uses=0] 55*9880d681SAndroid Build Coastguard Worker br label %return 56*9880d681SAndroid Build Coastguard Worker 57*9880d681SAndroid Build Coastguard Workerreturn: ; preds = %cond_next18 58*9880d681SAndroid Build Coastguard Worker %retval20 = load i32, i32* %retval ; <i32> [#uses=1] 59*9880d681SAndroid Build Coastguard Worker ret i32 %retval20 60*9880d681SAndroid Build Coastguard Worker} 61*9880d681SAndroid Build Coastguard Worker 62*9880d681SAndroid Build Coastguard Workerdeclare i32 @bar(...) 63*9880d681SAndroid Build Coastguard Worker 64*9880d681SAndroid Build Coastguard Workerdeclare i32 @baz(...) 65*9880d681SAndroid Build Coastguard Worker 66*9880d681SAndroid Build Coastguard Workerdeclare i32 @foo(...) 67*9880d681SAndroid Build Coastguard Worker 68*9880d681SAndroid Build Coastguard Workerdeclare i32 @quux(...) 69