a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
36 lines
1.3 KiB
LLVM
36 lines
1.3 KiB
LLVM
; Test that the updated regmask on the call to @fun1 preserves %r14 and
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; %15. @fun1 will save and restore these registers since it contains a call.
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;
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; RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -enable-ipra -print-regmask-num-regs=-1 \
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; RUN: -debug-only=ip-regalloc 2>&1 < %s | FileCheck --check-prefix=DBG %s
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; REQUIRES: asserts
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;
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; DBG: fun1 function optimized for not having CSR
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; DBG: Call Instruction After Register Usage Info Propagation :
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; DBG-NEXT: CallBRASL @fun1{{.*}} $r14d $r15d
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declare dso_local fastcc signext i32 @foo(ptr, i32 signext) unnamed_addr
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define internal fastcc void @fun1(ptr %arg, ptr nocapture %arg1) unnamed_addr #0 {
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bb:
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%tmp = load i16, ptr undef, align 2
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%tmp2 = shl i16 %tmp, 4
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%tmp3 = tail call fastcc signext i32 @foo(ptr nonnull %arg, i32 signext 5)
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%tmp4 = or i16 0, %tmp2
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%tmp5 = or i16 %tmp4, 0
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store i16 %tmp5, ptr undef, align 2
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%tmp6 = getelementptr inbounds i16, ptr %arg, i64 5
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%tmp7 = load i16, ptr %tmp6, align 2
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store i16 %tmp7, ptr %arg1, align 2
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ret void
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}
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define fastcc void @fun0(ptr nocapture readonly %arg, ptr nocapture %arg1, i32 signext %arg2) unnamed_addr {
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bb:
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%a = alloca i8, i64 undef
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call fastcc void @fun1(ptr nonnull undef, ptr %arg1)
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ret void
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}
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attributes #0 = { norecurse nounwind "frame-pointer"="none" }
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