;RUN: llc -march=sparc < %s -verify-machineinstrs | FileCheck %s
;RUN: llc -march=sparc -O0 < %s -verify-machineinstrs | FileCheck %s -check-prefix=UNOPT
target triple = "sparc-unknown-linux-gnu"
define i32 @test(i32 %a) #0 {
entry:
; CHECK: test
; CHECK: call bar
; CHECK-NOT: nop
; CHECK: ret
; CHECK-NEXT: restore
%0 = tail call i32 @bar(i32 %a) nounwind
ret i32 %0
}
define i32 @test_jmpl(ptr nocapture %f, i32 %a, i32 %b) #0 {
entry:
; CHECK: test_jmpl
; CHECK: call
; CHECK-NOT: nop
; CHECK: ret
; CHECK-NEXT: restore
%0 = tail call i32 %f(i32 %a, i32 %b) nounwind
ret i32 %0
}
define i32 @test_loop(i32 %a, i32 %b) nounwind readnone {
; CHECK: test_loop
entry:
%0 = icmp sgt i32 %b, 0
br i1 %0, label %bb, label %bb5
bb: ; preds = %entry, %bb
%a_addr.18 = phi i32 [ %a_addr.0, %bb ], [ %a, %entry ]
%1 = phi i32 [ %3, %bb ], [ 0, %entry ]
%tmp9 = mul i32 %1, %b
%2 = and i32 %1, 1
%tmp = xor i32 %2, 1
%.pn = shl i32 %tmp9, %tmp
%a_addr.0 = add i32 %.pn, %a_addr.18
%3 = add nsw i32 %1, 1
%exitcond = icmp eq i32 %3, %b
;CHECK: cmp
;CHECK: bne
;CHECK-NOT: nop
br i1 %exitcond, label %bb5, label %bb
bb5: ; preds = %bb, %entry
%a_addr.1.lcssa = phi i32 [ %a, %entry ], [ %a_addr.0, %bb ]
;CHECK: retl
;CHECK-NOT: restore
ret i32 %a_addr.1.lcssa
}
define i32 @test_inlineasm(i32 %a) #0 {
entry:
;CHECK-LABEL: test_inlineasm:
;CHECK: cmp
;CHECK: sethi
;CHECK: !NO_APP
;CHECK-NEXT: ble
;CHECK-NEXT: mov
tail call void asm sideeffect "sethi 0, %g0", ""() nounwind
%0 = icmp slt i32 %a, 0
br i1 %0, label %bb, label %bb1
bb: ; preds = %entry
%1 = tail call i32 (...) @foo(i32 %a) nounwind
ret i32 %1
bb1: ; preds = %entry
%2 = tail call i32 @bar(i32 %a) nounwind
ret i32 %2
}
declare i32 @foo(...)
declare i32 @bar(i32)
define i32 @test_implicit_def() #0 {
entry:
;UNOPT-LABEL: test_implicit_def:
;UNOPT: call func
;UNOPT-NEXT: nop
%0 = tail call i32 @func(ptr undef) nounwind
ret i32 0
}
define i32 @prevent_o7_in_call_delay_slot(i32 %i0) #0 {
entry:
;CHECK-LABEL: prevent_o7_in_call_delay_slot:
;CHECK: add %i0, 2, %o5
;CHECK: add %i0, 3, %o7
;CHECK: add %o5, %o7, %o0
;CHECK: call bar
;CHECK-NEXT: nop
%0 = add nsw i32 %i0, 2
%1 = add nsw i32 %i0, 3
tail call void asm sideeffect "", "r,r,~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o6},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7}"(i32 %0, i32 %1)
%2 = add nsw i32 %0, %1
%3 = tail call i32 @bar(i32 %2)
ret i32 %3
}
declare i32 @func(ptr)
define i32 @restore_add(i32 %a, i32 %b) {
entry:
;CHECK-LABEL: restore_add:
;CHECK: ret
;CHECK: restore %o0, %i1, %o0
%0 = tail call i32 @bar(i32 %a) nounwind
%1 = add nsw i32 %0, %b
ret i32 %1
}
define i32 @restore_add_imm(i32 %a) {
entry:
;CHECK-LABEL: restore_add_imm:
;CHECK: ret
;CHECK: restore %o0, 20, %o0
%0 = tail call i32 @bar(i32 %a) nounwind
%1 = add nsw i32 %0, 20
ret i32 %1
}
define i32 @restore_or(i32 %a) #0 {
entry:
;CHECK-LABEL: restore_or:
;CHECK: ret
;CHECK: restore %g0, %o0, %o0
%0 = tail call i32 @bar(i32 %a) nounwind
ret i32 %0
}
define i32 @restore_or_imm(i32 %a) {
entry:
;CHECK-LABEL: restore_or_imm:
;CHECK: or %o0, 20, %i0
;CHECK: ret
;CHECK-NOT: restore %g0, %g0, %g0
;CHECK: restore
%0 = tail call i32 @bar(i32 %a) nounwind
%1 = or i32 %0, 20
ret i32 %1
}
define i32 @restore_sethi(i32 %a) {
entry:
;CHECK-LABEL: restore_sethi:
;CHECK-NOT: sethi 3
;CHECK: restore %g0, 3072, %o0
%0 = tail call i32 @bar(i32 %a) nounwind
%1 = icmp ne i32 %0, 0
%2 = select i1 %1, i32 3072, i32 0
ret i32 %2
}
define i32 @restore_sethi_3bit(i32 %a) {
entry:
;CHECK-LABEL: restore_sethi_3bit:
;CHECK: sethi 6
;CHECK-NOT: restore %g0, 6144, %o0
%0 = tail call i32 @bar(i32 %a) nounwind
%1 = icmp ne i32 %0, 0
%2 = select i1 %1, i32 6144, i32 0
ret i32 %2
}
define i32 @restore_sethi_large(i32 %a) {
entry:
;CHECK-LABEL: restore_sethi_large:
;CHECK: sethi 4000, %i0
;CHECK-NOT: restore %g0, %g0, %g0
;CHECK: restore
%0 = tail call i32 @bar(i32 %a) nounwind
%1 = icmp ne i32 %0, 0
%2 = select i1 %1, i32 4096000, i32 0
ret i32 %2
}
attributes #0 = { nounwind "disable-tail-calls"="true" }
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