mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-29 10:32:47 +00:00
789efbad2a
SelectionDAG::getConstantFP(double Val, EVT VT, bool isTarget); should not be used when Val is not a simple constant (as the comment in SelectionDAG.h indicates). This patch avoids using this function when folding an unknown constant through a bitcast, where it cannot be guaranteed that Val will be a simple constant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163703 91177308-0d34-0410-b5e6-96231b3b80d8
70 lines
1.4 KiB
LLVM
70 lines
1.4 KiB
LLVM
; RUN: llc < %s -mtriple=armv4t-unknown-linux-gnueabi -disable-cgp-branch-opts -verify-machineinstrs | FileCheck %s
|
|
|
|
define i32 @f1() {
|
|
; CHECK: f1
|
|
; CHECK: mov r0, #0
|
|
ret i32 0
|
|
}
|
|
|
|
define i32 @f2() {
|
|
; CHECK: f2
|
|
; CHECK: mov r0, #255
|
|
ret i32 255
|
|
}
|
|
|
|
define i32 @f3() {
|
|
; CHECK: f3
|
|
; CHECK: mov r0, #256
|
|
ret i32 256
|
|
}
|
|
|
|
define i32 @f4() {
|
|
; CHECK: f4
|
|
; CHECK: orr{{.*}}#256
|
|
ret i32 257
|
|
}
|
|
|
|
define i32 @f5() {
|
|
; CHECK: f5
|
|
; CHECK: mov r0, #-1073741761
|
|
ret i32 -1073741761
|
|
}
|
|
|
|
define i32 @f6() {
|
|
; CHECK: f6
|
|
; CHECK: mov r0, #1008
|
|
ret i32 1008
|
|
}
|
|
|
|
define void @f7(i32 %a) {
|
|
; CHECK: f7
|
|
; CHECK: cmp r0, #65536
|
|
%b = icmp ugt i32 %a, 65536
|
|
br i1 %b, label %r, label %r
|
|
r:
|
|
ret void
|
|
}
|
|
|
|
define i32 @f8() nounwind {
|
|
; Check that constant propagation through (i32)-1 => (float)Nan => (i32)-1
|
|
; gives expected result
|
|
; CHECK: f8
|
|
; CHECK: mvn r0, #0
|
|
%tmp0 = bitcast i32 -1 to float
|
|
%tmp1 = bitcast float %tmp0 to i32
|
|
ret i32 %tmp1
|
|
}
|
|
|
|
%t1 = type { <3 x float>, <3 x float> }
|
|
|
|
@const1 = global %t1 { <3 x float> zeroinitializer,
|
|
<3 x float> <float 1.000000e+00,
|
|
float 2.000000e+00,
|
|
float 3.000000e+00> }, align 16
|
|
; CHECK: const1
|
|
; CHECK: .zero 16
|
|
; CHECK: float 1.0
|
|
; CHECK: float 2.0
|
|
; CHECK: float 3.0
|
|
; CHECK: .zero 4
|