104 lines
1.7 KiB
LLVM
104 lines
1.7 KiB
LLVM
; RUN: llc < %s -O1 -mcpu=atom -mtriple=i686-linux | FileCheck %s
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declare void @external_function(...)
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define i32 @test_return_val(i32 %a) nounwind {
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; CHECK: test_return_val
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; CHECK: movl
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; CHECK: nop
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; CHECK: nop
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; CHECK: nop
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; CHECK: nop
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; CHECK: nop
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; CHECK: nop
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; CHECK: ret
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ret i32 %a
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}
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define i32 @test_optsize(i32 %a) nounwind optsize {
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; CHECK: test_optsize
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; CHECK: movl
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; CHECK-NEXT: ret
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ret i32 %a
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}
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define i32 @test_minsize(i32 %a) nounwind minsize {
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; CHECK: test_minsize
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; CHECK: movl
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; CHECK-NEXT: ret
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ret i32 %a
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}
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define i32 @test_add(i32 %a, i32 %b) nounwind {
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; CHECK: test_add
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; CHECK: addl
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; CHECK: nop
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; CHECK: nop
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; CHECK: nop
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; CHECK: nop
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; CHECK: ret
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%result = add i32 %a, %b
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ret i32 %result
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}
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define i32 @test_multiple_ret(i32 %a, i32 %b, i1 %c) nounwind {
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; CHECK: @test_multiple_ret
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; CHECK: je
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; CHECK: nop
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; CHECK: nop
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; CHECK: ret
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; CHECK: nop
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; CHECK: nop
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; CHECK: ret
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br i1 %c, label %bb1, label %bb2
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bb1:
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ret i32 %a
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bb2:
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ret i32 %b
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}
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define void @test_call_others(i32 %x) nounwind
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{
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; CHECK: test_call_others
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; CHECK: je
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%tobool = icmp eq i32 %x, 0
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br i1 %tobool, label %if.end, label %true.case
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; CHECK: jmp external_function
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true.case:
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tail call void bitcast (void (...)* @external_function to void ()*)() nounwind
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br label %if.end
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; CHECK: nop
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; CHECK: nop
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; CHECK: nop
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; CHECK: nop
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; CHECK: ret
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if.end:
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ret void
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}
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define void @test_branch_to_same_bb(i32 %x, i32 %y) nounwind {
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; CHECK: @test_branch_to_same_bb
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%cmp = icmp sgt i32 %x, 0
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br i1 %cmp, label %while.cond, label %while.end
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while.cond:
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br label %while.cond
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; CHECK: nop
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; CHECK: nop
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; CHECK: nop
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; CHECK: nop
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; CHECK: ret
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while.end:
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ret void
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}
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