mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-11 23:05:31 +00:00
26b0000166
are either unreduced or only test old syntax. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133228 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
1.3 KiB
LLVM
60 lines
1.3 KiB
LLVM
; An integer truncation to i1 should be done with an and instruction to make
|
|
; sure only the LSBit survives. Test that this is the case both for a returned
|
|
; value and as the operand of a branch.
|
|
; RUN: llc < %s -march=x86 | FileCheck %s
|
|
|
|
define zeroext i1 @test1(i32 %X) nounwind {
|
|
%Y = trunc i32 %X to i1
|
|
ret i1 %Y
|
|
}
|
|
; CHECK: test1:
|
|
; CHECK: andl $1, %eax
|
|
|
|
define i1 @test2(i32 %val, i32 %mask) nounwind {
|
|
entry:
|
|
%shifted = ashr i32 %val, %mask
|
|
%anded = and i32 %shifted, 1
|
|
%trunced = trunc i32 %anded to i1
|
|
br i1 %trunced, label %ret_true, label %ret_false
|
|
ret_true:
|
|
ret i1 true
|
|
ret_false:
|
|
ret i1 false
|
|
}
|
|
; CHECK: test2:
|
|
; CHECK: btl %eax
|
|
|
|
define i32 @test3(i8* %ptr) nounwind {
|
|
%val = load i8* %ptr
|
|
%tmp = trunc i8 %val to i1
|
|
br i1 %tmp, label %cond_true, label %cond_false
|
|
cond_true:
|
|
ret i32 21
|
|
cond_false:
|
|
ret i32 42
|
|
}
|
|
; CHECK: test3:
|
|
; CHECK: testb $1, (%eax)
|
|
|
|
define i32 @test4(i8* %ptr) nounwind {
|
|
%tmp = ptrtoint i8* %ptr to i1
|
|
br i1 %tmp, label %cond_true, label %cond_false
|
|
cond_true:
|
|
ret i32 21
|
|
cond_false:
|
|
ret i32 42
|
|
}
|
|
; CHECK: test4:
|
|
; CHECK: testb $1, 4(%esp)
|
|
|
|
define i32 @test5(double %d) nounwind {
|
|
%tmp = fptosi double %d to i1
|
|
br i1 %tmp, label %cond_true, label %cond_false
|
|
cond_true:
|
|
ret i32 21
|
|
cond_false:
|
|
ret i32 42
|
|
}
|
|
; CHECK: test5:
|
|
; CHECK: testb $1
|