mirror of
https://github.com/c64scene-ar/llvm-6502.git
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0a4fd46d9e
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94970 91177308-0d34-0410-b5e6-96231b3b80d8
92 lines
1.5 KiB
LLVM
92 lines
1.5 KiB
LLVM
; RUN: llc < %s -march=x86 -asm-verbose=false | FileCheck %s -check-prefix=32
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; RUN: llc < %s -march=x86-64 -asm-verbose=false | FileCheck %s -check-prefix=64
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define void @t1(i32 %x) nounwind ssp {
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entry:
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; 32: t1:
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; 32: jmp {{_?}}foo
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; 64: t1:
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; 64: jmp {{_?}}foo
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tail call void @foo() nounwind
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ret void
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}
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declare void @foo()
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define void @t2() nounwind ssp {
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entry:
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; 32: t2:
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; 32: jmp {{_?}}foo2
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; 64: t2:
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; 64: jmp {{_?}}foo2
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%0 = tail call i32 @foo2() nounwind
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ret void
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}
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declare i32 @foo2()
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define void @t3() nounwind ssp {
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entry:
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; 32: t3:
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; 32: jmp {{_?}}foo3
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; 64: t3:
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; 64: jmp {{_?}}foo3
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%0 = tail call i32 @foo3() nounwind
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ret void
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}
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declare i32 @foo3()
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define void @t4(void (i32)* nocapture %x) nounwind ssp {
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entry:
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; 32: t4:
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; 32: call *
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; FIXME: gcc can generate a tailcall for this. But it's tricky.
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; 64: t4:
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; 64-NOT: call
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; 64: jmpq *
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tail call void %x(i32 0) nounwind
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ret void
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}
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define void @t5(void ()* nocapture %x) nounwind ssp {
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entry:
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; 32: t5:
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; 32-NOT: call
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; 32: jmpl *
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; 64: t5:
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; 64-NOT: call
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; 64: jmpq *
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tail call void %x() nounwind
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ret void
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}
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define i32 @t6(i32 %x) nounwind ssp {
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entry:
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; 32: t6:
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; 32: call {{_?}}t6
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; 32: call {{_?}}bar
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; 64: t6:
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; 64: jmp {{_?}}t6
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; 64: jmp {{_?}}bar
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%0 = icmp slt i32 %x, 10
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br i1 %0, label %bb, label %bb1
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bb:
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%1 = add nsw i32 %x, -1
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%2 = tail call i32 @t6(i32 %1) nounwind ssp
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ret i32 %2
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bb1:
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%3 = tail call i32 @bar(i32 %x) nounwind
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ret i32 %3
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}
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declare i32 @bar(i32)
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