1 ; Test that the updated regmask on the call to @fun1 preserves %r14 and 2 ; %15. @fun1 will save and restore these registers since it contains a call. 3 ; 4 ; RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -enable-ipra -print-regmask-num-regs=-1 \ 5 ; RUN: -debug-only=ip-regalloc 2>&1 < %s | FileCheck --check-prefix=DBG %s 6 ; REQUIRES: asserts 7 ; 8 ; DBG: fun1 function optimized for not having CSR 9 ; DBG: Call Instruction After Register Usage Info Propagation : CallBRASL @fun1{{.*}} $r14d $r15d 10 11 declare dso_local fastcc signext i32 @foo(i16*, i32 signext) unnamed_addr 12 13 define internal fastcc void @fun1(i16* %arg, i16* nocapture %arg1) unnamed_addr #0 { 14 bb: 15 %tmp = load i16, i16* undef, align 2 16 %tmp2 = shl i16 %tmp, 4 17 %tmp3 = tail call fastcc signext i32 @foo(i16* nonnull %arg, i32 signext 5) 18 %tmp4 = or i16 0, %tmp2 19 %tmp5 = or i16 %tmp4, 0 20 store i16 %tmp5, i16* undef, align 2 21 %tmp6 = getelementptr inbounds i16, i16* %arg, i64 5 22 %tmp7 = load i16, i16* %tmp6, align 2 23 store i16 %tmp7, i16* %arg1, align 2 24 ret void 25 } 26 27 define fastcc void @fun0(i8* nocapture readonly %arg, i16* nocapture %arg1, i32 signext %arg2) unnamed_addr { 28 bb: 29 %a = alloca i8, i64 undef 30 call fastcc void @fun1(i16* nonnull undef, i16* %arg1) 31 ret void 32 } 33 34 attributes #0 = { norecurse nounwind "no-frame-pointer-elim"="false" } 35
