1; RUN: llc < %s -march=ppc64 | FileCheck %s 2target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64" 3target triple = "powerpc64-unknown-linux-gnu" 4 5define void @foo() nounwind readnone noinline { 6 ret void 7} 8 9define weak void @foo_weak() nounwind { 10 ret void 11} 12 13; Calls to local function does not require the TOC restore 'nop' 14define void @test_direct() nounwind readnone { 15; CHECK-LABEL: test_direct: 16 tail call void @foo() nounwind 17; CHECK: bl foo 18; CHECK-NOT: nop 19 ret void 20} 21 22; Calls to weak function requires a TOC restore 'nop' because they 23; may be overridden in a different module. 24define void @test_weak() nounwind readnone { 25; CHECK-LABEL: test_weak: 26 tail call void @foo_weak() nounwind 27; CHECK: bl foo 28; CHECK-NEXT: nop 29 ret void 30} 31 32; Indirect calls requires a full stub creation 33define void @test_indirect(void ()* nocapture %fp) nounwind { 34; CHECK-LABEL: test_indirect: 35 tail call void %fp() nounwind 36; CHECK: ld [[FP:[0-9]+]], 0(3) 37; CHECK: ld 11, 16(3) 38; CHECK: ld 2, 8(3) 39; CHECK-NEXT: mtctr [[FP]] 40; CHECK-NEXT: bctrl 41; CHECK-NEXT: ld 2, 40(1) 42 ret void 43} 44 45; Absolute vales should be have the TOC restore 'nop' 46define void @test_abs() nounwind { 47; CHECK-LABEL: test_abs: 48 tail call void inttoptr (i64 1024 to void ()*)() nounwind 49; CHECK: bla 1024 50; CHECK-NEXT: nop 51 ret void 52} 53 54declare double @sin(double) nounwind 55 56; External functions call should also have a 'nop' 57define double @test_external(double %x) nounwind { 58; CHECK-LABEL: test_external: 59 %call = tail call double @sin(double %x) nounwind 60; CHECK: bl sin 61; CHECK-NEXT: nop 62 ret double %call 63} 64