mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-21 18:29:45 +00:00
1452d46e0b
Adds a check for -Oz, changes the code to not re-visit BBs, and skips over DBG_VALUE instrs. Patch by Andy Zhang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172258 91177308-0d34-0410-b5e6-96231b3b80d8
104 lines
1.7 KiB
LLVM
104 lines
1.7 KiB
LLVM
; RUN: llc < %s -O1 -mcpu=atom -mtriple=i686-linux | FileCheck %s
|
|
|
|
declare void @external_function(...)
|
|
|
|
define i32 @test_return_val(i32 %a) nounwind {
|
|
; CHECK: test_return_val
|
|
; CHECK: movl
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: ret
|
|
ret i32 %a
|
|
}
|
|
|
|
define i32 @test_optsize(i32 %a) nounwind optsize {
|
|
; CHECK: test_optsize
|
|
; CHECK: movl
|
|
; CHECK-NEXT: ret
|
|
ret i32 %a
|
|
}
|
|
|
|
define i32 @test_minsize(i32 %a) nounwind minsize {
|
|
; CHECK: test_minsize
|
|
; CHECK: movl
|
|
; CHECK-NEXT: ret
|
|
ret i32 %a
|
|
}
|
|
|
|
define i32 @test_add(i32 %a, i32 %b) nounwind {
|
|
; CHECK: test_add
|
|
; CHECK: addl
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: ret
|
|
%result = add i32 %a, %b
|
|
ret i32 %result
|
|
}
|
|
|
|
define i32 @test_multiple_ret(i32 %a, i32 %b, i1 %c) nounwind {
|
|
; CHECK: @test_multiple_ret
|
|
; CHECK: je
|
|
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: ret
|
|
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: ret
|
|
|
|
br i1 %c, label %bb1, label %bb2
|
|
|
|
bb1:
|
|
ret i32 %a
|
|
|
|
bb2:
|
|
ret i32 %b
|
|
}
|
|
|
|
define void @test_call_others(i32 %x) nounwind
|
|
{
|
|
; CHECK: test_call_others
|
|
; CHECK: je
|
|
%tobool = icmp eq i32 %x, 0
|
|
br i1 %tobool, label %if.end, label %true.case
|
|
|
|
; CHECK: jmp external_function
|
|
true.case:
|
|
tail call void bitcast (void (...)* @external_function to void ()*)() nounwind
|
|
br label %if.end
|
|
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: ret
|
|
if.end:
|
|
ret void
|
|
|
|
}
|
|
|
|
define void @test_branch_to_same_bb(i32 %x, i32 %y) nounwind {
|
|
; CHECK: @test_branch_to_same_bb
|
|
%cmp = icmp sgt i32 %x, 0
|
|
br i1 %cmp, label %while.cond, label %while.end
|
|
|
|
while.cond:
|
|
br label %while.cond
|
|
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: nop
|
|
; CHECK: ret
|
|
while.end:
|
|
ret void
|
|
}
|
|
|