mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-23 02:29:18 +00:00
7a2bdde0a0
Luis Felipe Strano Moraes! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
843 B
LLVM
43 lines
843 B
LLVM
; RUN: opt < %s -constprop -die -S | FileCheck %s
|
|
|
|
; This is a basic sanity check for constant propagation. The add instruction
|
|
; should be eliminated.
|
|
define i32 @test1(i1 %B) {
|
|
br i1 %B, label %BB1, label %BB2
|
|
|
|
BB1:
|
|
%Val = add i32 0, 0
|
|
br label %BB3
|
|
|
|
BB2:
|
|
br label %BB3
|
|
|
|
BB3:
|
|
; CHECK: @test1
|
|
; CHECK: %Ret = phi i32 [ 0, %BB1 ], [ 1, %BB2 ]
|
|
%Ret = phi i32 [ %Val, %BB1 ], [ 1, %BB2 ]
|
|
ret i32 %Ret
|
|
}
|
|
|
|
|
|
; PR6197
|
|
define i1 @test2(i8* %f) nounwind {
|
|
entry:
|
|
%V = icmp ne i8* blockaddress(@test2, %bb), null
|
|
br label %bb
|
|
bb:
|
|
ret i1 %V
|
|
|
|
; CHECK: @test2
|
|
; CHECK: ret i1 true
|
|
}
|
|
|
|
define i1 @TNAN() {
|
|
; CHECK: @TNAN
|
|
; CHECK: ret i1 true
|
|
%A = fcmp uno double 0x7FF8000000000000, 1.000000e+00
|
|
%B = fcmp uno double 1.230000e+02, 1.000000e+00
|
|
%C = or i1 %A, %B
|
|
ret i1 %C
|
|
}
|