mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-16 11:30:51 +00:00
a032dbd62f
allowed in branch delay slot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168131 91177308-0d34-0410-b5e6-96231b3b80d8
70 lines
1.3 KiB
LLVM
70 lines
1.3 KiB
LLVM
; RUN: llc -march=mipsel -O0 < %s | FileCheck %s -check-prefix=None
|
|
; RUN: llc -march=mipsel < %s | FileCheck %s -check-prefix=Default
|
|
|
|
define void @foo1() nounwind {
|
|
entry:
|
|
; Default: jalr
|
|
; Default-NOT: nop
|
|
; Default: jr
|
|
; Default-NOT: nop
|
|
; Default: .end
|
|
; None: jalr
|
|
; None: nop
|
|
; None: jr
|
|
; None: nop
|
|
; None: .end
|
|
|
|
tail call void @foo2(i32 3) nounwind
|
|
ret void
|
|
}
|
|
|
|
declare void @foo2(i32)
|
|
|
|
; Check that cvt.d.w goes into jalr's delay slot.
|
|
;
|
|
define void @foo3(i32 %a) nounwind {
|
|
entry:
|
|
; Default: foo3:
|
|
; Default: jalr
|
|
; Default: cvt.d.w
|
|
|
|
%conv = sitofp i32 %a to double
|
|
tail call void @foo4(double %conv) nounwind
|
|
ret void
|
|
}
|
|
|
|
declare void @foo4(double)
|
|
|
|
@g2 = external global i32
|
|
@g1 = external global i32
|
|
@g3 = external global i32
|
|
|
|
; Check that branch delay slot can be filled with an instruction with operand
|
|
; $1.
|
|
;
|
|
; Default: foo5:
|
|
; Default-NOT: nop
|
|
|
|
define void @foo5(i32 %a) nounwind {
|
|
entry:
|
|
%0 = load i32* @g2, align 4
|
|
%tobool = icmp eq i32 %a, 0
|
|
br i1 %tobool, label %if.else, label %if.then
|
|
|
|
if.then:
|
|
%1 = load i32* @g1, align 4
|
|
%add = add nsw i32 %1, %0
|
|
store i32 %add, i32* @g1, align 4
|
|
br label %if.end
|
|
|
|
if.else:
|
|
%2 = load i32* @g3, align 4
|
|
%sub = sub nsw i32 %2, %0
|
|
store i32 %sub, i32* @g3, align 4
|
|
br label %if.end
|
|
|
|
if.end:
|
|
ret void
|
|
}
|
|
|