mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-21 20:12:56 +02:00
1eb388e6c3
intersection of the LHS and RHS ConstantRanges and return "false" when the range is empty. This simplifies some code and catches some extra cases. llvm-svn: 126744
38 lines
768 B
LLVM
38 lines
768 B
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
; PR1738
|
|
define i1 @test1(double %X, double %Y) {
|
|
%tmp9 = fcmp ord double %X, 0.000000e+00
|
|
%tmp13 = fcmp ord double %Y, 0.000000e+00
|
|
%bothcond = and i1 %tmp13, %tmp9
|
|
ret i1 %bothcond
|
|
; CHECK: fcmp ord double %Y, %X
|
|
}
|
|
|
|
define i1 @test2(i1 %X, i1 %Y) {
|
|
%a = and i1 %X, %Y
|
|
%b = and i1 %a, %X
|
|
ret i1 %b
|
|
; CHECK: @test2
|
|
; CHECK-NEXT: and i1 %X, %Y
|
|
; CHECK-NEXT: ret
|
|
}
|
|
|
|
define i32 @test3(i32 %X, i32 %Y) {
|
|
%a = and i32 %X, %Y
|
|
%b = and i32 %Y, %a
|
|
ret i32 %b
|
|
; CHECK: @test3
|
|
; CHECK-NEXT: and i32 %X, %Y
|
|
; CHECK-NEXT: ret
|
|
}
|
|
|
|
define i1 @test4(i32 %X) {
|
|
%a = icmp ult i32 %X, 31
|
|
%b = icmp slt i32 %X, 0
|
|
%c = and i1 %a, %b
|
|
ret i1 %c
|
|
; CHECK: @test4
|
|
; CHECK-NEXT: ret i1 false
|
|
}
|