103 lines · plain
1; RUN: llc -mtriple=sparc -disable-sparc-leaf-proc=0 < %s | FileCheck %s2 3; CHECK-LABEL: func_nobody:4; CHECK: retl5; CHECK-NEXT: nop6define void @func_nobody() {7entry:8 ret void9}10 11 12; CHECK-LABEL: return_int_const:13; CHECK: retl14; CHECK-NEXT: mov 1729, %o015define i32 @return_int_const() {16entry:17 ret i32 172918}19 20; CHECK-LABEL: return_double_const:21; CHECK: sethi22; CHECK: retl23; CHECK-NEXT: ldd {{.*}}, %f024 25define double @return_double_const() {26entry:27 ret double 0.000000e+0028}29 30; CHECK-LABEL: leaf_proc_with_args:31; CHECK: add {{%o[0-1]}}, {{%o[0-1]}}, [[R:%[go][0-7]]]32; CHECK: retl33; CHECK-NEXT: add [[R]], %o2, %o034 35define i32 @leaf_proc_with_args(i32 %a, i32 %b, i32 %c) {36entry:37 %0 = add nsw i32 %b, %a38 %1 = add nsw i32 %0, %c39 ret i32 %140}41 42; CHECK-LABEL: leaf_proc_with_args_in_stack:43; CHECK-DAG: ld [%sp+92], {{%[go][0-7]}}44; CHECK-DAG: ld [%sp+96], {{%[go][0-7]}}45; CHECK: retl46; CHECK-NEXT: add {{.*}}, %o047define i32 @leaf_proc_with_args_in_stack(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h) {48entry:49 %0 = add nsw i32 %b, %a50 %1 = add nsw i32 %0, %c51 %2 = add nsw i32 %1, %d52 %3 = add nsw i32 %2, %e53 %4 = add nsw i32 %3, %f54 %5 = add nsw i32 %4, %g55 %6 = add nsw i32 %5, %h56 ret i32 %657}58 59; CHECK-LABEL: leaf_proc_with_local_array:60; CHECK: add %sp, -104, %sp61; CHECK: mov 1, [[R1:%[go][0-7]]]62; CHECK: st [[R1]], [%sp+96]63; CHECK: mov 2, [[R2:%[go][0-7]]]64; CHECK: st [[R2]], [%sp+100]65; CHECK: ld {{.+}}, %o066; CHECK: retl67; CHECK-NEXT: add %sp, 104, %sp68 69define i32 @leaf_proc_with_local_array(i32 %a, i32 %b, i32 %c) {70entry:71 %array = alloca [2 x i32], align 472 %0 = sub nsw i32 %b, %c73 %1 = getelementptr inbounds [2 x i32], ptr %array, i32 0, i32 074 store i32 1, ptr %1, align 475 %2 = getelementptr inbounds [2 x i32], ptr %array, i32 0, i32 176 store i32 2, ptr %2, align 477 %3 = getelementptr inbounds [2 x i32], ptr %array, i32 0, i32 %a78 %4 = load i32, ptr %3, align 479 ret i32 %480}81 82; Here we have a leaf function where it contains inline assembly, which means83; that register renumbering might interfere with the register constraints.84; As a result the function is not marked as being a leaf one.85 86; CHECK-LABEL: leaf_proc_give_up87; CHECK: save %sp, -96, %sp88; CHECK: ld [%fp+92], %o589; CHECK: mov %i5, %o490; CHECK: mov %i4, %o391; CHECK: mov %i3, %o292; CHECK: mov %i2, %o193; CHECK: mov %i1, %o094; CHECK: mov %i0, %g195; CHECK: ret96; CHECK-NEXT: restore %g0, %o0, %o097 98define i32 @leaf_proc_give_up(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6) {99Entry:100 %g = call i32 asm sideeffect "", "={o0},{g1},{o0},{o1},{o2},{o3},{o4},{o5}"(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6)101 ret i32 %g102}103