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; RUN: opt -S -instcombine < %s | FileCheck %s
declare void @foo()
define void @test1(i32 %a, i32 %b) nounwind {
%1 = icmp slt i32 %a, 0
%2 = icmp slt i32 %b, 0
%or.cond = or i1 %1, %2
br i1 %or.cond, label %if.then, label %if.end
; CHECK: @test1
; CHECK-NEXT: %1 = or i32 %a, %b
; CHECK-NEXT: %2 = icmp slt i32 %1, 0
; CHECK-NEXT: br
if.then:
tail call void @foo() nounwind
ret void
if.end:
ret void
}
define void @test2(i32 %a, i32 %b) nounwind {
%1 = icmp sgt i32 %a, -1
%2 = icmp sgt i32 %b, -1
%or.cond = or i1 %1, %2
br i1 %or.cond, label %if.then, label %if.end
; CHECK: @test2
; CHECK-NEXT: %1 = and i32 %a, %b
; CHECK-NEXT: %2 = icmp sgt i32 %1, -1
; CHECK-NEXT: br
if.then:
tail call void @foo() nounwind
ret void
if.end:
ret void
}
define void @test3(i32 %a, i32 %b) nounwind {
%1 = icmp slt i32 %a, 0
%2 = icmp slt i32 %b, 0
%or.cond = and i1 %1, %2
br i1 %or.cond, label %if.then, label %if.end
; CHECK: @test3
; CHECK-NEXT: %1 = and i32 %a, %b
; CHECK-NEXT: %2 = icmp slt i32 %1, 0
; CHECK-NEXT: br
if.then:
tail call void @foo() nounwind
ret void
if.end:
ret void
}
define void @test4(i32 %a, i32 %b) nounwind {
%1 = icmp sgt i32 %a, -1
%2 = icmp sgt i32 %b, -1
%or.cond = and i1 %1, %2
br i1 %or.cond, label %if.then, label %if.end
; CHECK: @test4
; CHECK-NEXT: %1 = or i32 %a, %b
; CHECK-NEXT: %2 = icmp sgt i32 %1, -1
; CHECK-NEXT: br
if.then:
tail call void @foo() nounwind
ret void
if.end:
ret void
}
define void @test5(i32 %a) nounwind {
%and = and i32 %a, 134217728
%1 = icmp eq i32 %and, 0
%2 = icmp sgt i32 %a, -1
%or.cond = and i1 %1, %2
br i1 %or.cond, label %if.then, label %if.end
; CHECK: @test5
; CHECK-NEXT: %1 = and i32 %a, -2013265920
; CHECK-NEXT: %2 = icmp eq i32 %1, 0
; CHECK-NEXT: br i1 %2, label %if.then, label %if.end
if.then:
tail call void @foo() nounwind
ret void
if.end:
ret void
}
define void @test6(i32 %a) nounwind {
%1 = icmp sgt i32 %a, -1
%and = and i32 %a, 134217728
%2 = icmp eq i32 %and, 0
%or.cond = and i1 %1, %2
br i1 %or.cond, label %if.then, label %if.end
; CHECK: @test6
; CHECK-NEXT: %1 = and i32 %a, -2013265920
; CHECK-NEXT: %2 = icmp eq i32 %1, 0
; CHECK-NEXT: br i1 %2, label %if.then, label %if.end
if.then:
tail call void @foo() nounwind
ret void
if.end:
ret void
}
define void @test7(i32 %a) nounwind {
%and = and i32 %a, 134217728
%1 = icmp ne i32 %and, 0
%2 = icmp slt i32 %a, 0
%or.cond = or i1 %1, %2
br i1 %or.cond, label %if.then, label %if.end
; CHECK: @test7
; CHECK-NEXT: %1 = and i32 %a, -2013265920
; CHECK-NEXT: %2 = icmp eq i32 %1, 0
; CHECK-NEXT: br i1 %2, label %if.end, label %if.the
if.then:
tail call void @foo() nounwind
ret void
if.end:
ret void
}
define void @test8(i32 %a) nounwind {
%1 = icmp slt i32 %a, 0
%and = and i32 %a, 134217728
%2 = icmp ne i32 %and, 0
%or.cond = or i1 %1, %2
br i1 %or.cond, label %if.then, label %if.end
; CHECK: @test8
; CHECK-NEXT: %1 = and i32 %a, -2013265920
; CHECK-NEXT: %2 = icmp eq i32 %1, 0
; CHECK-NEXT: br i1 %2, label %if.end, label %if.the
if.then:
tail call void @foo() nounwind
ret void
if.end:
ret void
}
define void @test9(i32 %a) nounwind {
%1 = and i32 %a, 1073741824
%2 = icmp ne i32 %1, 0
%3 = icmp sgt i32 %a, -1
%or.cond = and i1 %2, %3
br i1 %or.cond, label %if.then, label %if.end
; CHECK: @test9
; CHECK-NEXT: %1 = and i32 %a, -1073741824
; CHECK-NEXT: %2 = icmp eq i32 %1, 1073741824
; CHECK-NEXT: br i1 %2, label %if.then, label %if.end
if.then:
tail call void @foo() nounwind
ret void
if.end:
ret void
}
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