forked from OSchip/llvm-project
54 lines
1.3 KiB
LLVM
54 lines
1.3 KiB
LLVM
; RUN: llc < %s -mtriple=i686-linux -show-mc-encoding | FileCheck %s
|
|
; RUN: llc < %s -mtriple=x86_64-linux -show-mc-encoding | FileCheck %s
|
|
|
|
declare void @foo()
|
|
declare void @bar()
|
|
|
|
define void @f(i32 %x, i32 %y) optsize {
|
|
entry:
|
|
%p = icmp eq i32 %x, %y
|
|
br i1 %p, label %bb1, label %bb2
|
|
bb1:
|
|
tail call void @foo()
|
|
ret void
|
|
bb2:
|
|
tail call void @bar()
|
|
ret void
|
|
|
|
; CHECK-LABEL: f:
|
|
; CHECK: cmp
|
|
; CHECK: jne bar
|
|
; Check that the asm doesn't just look good, but uses the correct encoding.
|
|
; CHECK: encoding: [0x75,A]
|
|
; CHECK: jmp foo
|
|
}
|
|
|
|
|
|
declare x86_thiscallcc zeroext i1 @baz(i8*, i32)
|
|
define x86_thiscallcc zeroext i1 @BlockPlacementTest(i8* %this, i32 %x) optsize {
|
|
entry:
|
|
%and = and i32 %x, 42
|
|
%tobool = icmp eq i32 %and, 0
|
|
br i1 %tobool, label %land.end, label %land.rhs
|
|
|
|
land.rhs:
|
|
%and6 = and i32 %x, 44
|
|
%tobool7 = icmp eq i32 %and6, 0
|
|
br i1 %tobool7, label %lor.rhs, label %land.end
|
|
|
|
lor.rhs:
|
|
%call = tail call x86_thiscallcc zeroext i1 @baz(i8* %this, i32 %x) #2
|
|
br label %land.end
|
|
|
|
land.end:
|
|
%0 = phi i1 [ false, %entry ], [ true, %land.rhs ], [ %call, %lor.rhs ]
|
|
ret i1 %0
|
|
|
|
; Make sure machine block placement isn't confused by the conditional tail call,
|
|
; but sees that it can fall through to the next block.
|
|
; CHECK-LABEL: BlockPlacementTest
|
|
; CHECK: je baz
|
|
; CHECK-NOT: xor
|
|
; CHECK: ret
|
|
}
|