mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-20 10:30:03 +00:00
975f5917a2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82888 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
1.0 KiB
LLVM
48 lines
1.0 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
; PR3021
|
|
|
|
; When inst combining an FCMP with the LHS coming from a uitofp instruction, we
|
|
; can't lower it to signed ICMP instructions.
|
|
|
|
define i1 @test1(i32 %val) {
|
|
%1 = uitofp i32 %val to double
|
|
%2 = fcmp ole double %1, 0.000000e+00
|
|
; CHECK: icmp eq i32 %val, 0
|
|
ret i1 %2
|
|
}
|
|
|
|
define i1 @test2(i32 %val) {
|
|
%1 = uitofp i32 %val to double
|
|
%2 = fcmp olt double %1, 0.000000e+00
|
|
ret i1 %2
|
|
; CHECK: ret i1 false
|
|
}
|
|
|
|
define i1 @test3(i32 %val) {
|
|
%1 = uitofp i32 %val to double
|
|
%2 = fcmp oge double %1, 0.000000e+00
|
|
ret i1 %2
|
|
; CHECK: ret i1 true
|
|
}
|
|
|
|
define i1 @test4(i32 %val) {
|
|
%1 = uitofp i32 %val to double
|
|
%2 = fcmp ogt double %1, 0.000000e+00
|
|
; CHECK: icmp ne i32 %val, 0
|
|
ret i1 %2
|
|
}
|
|
|
|
define i1 @test5(i32 %val) {
|
|
%1 = uitofp i32 %val to double
|
|
%2 = fcmp ogt double %1, -4.400000e+00
|
|
ret i1 %2
|
|
; CHECK: ret i1 true
|
|
}
|
|
|
|
define i1 @test6(i32 %val) {
|
|
%1 = uitofp i32 %val to double
|
|
%2 = fcmp olt double %1, -4.400000e+00
|
|
ret i1 %2
|
|
; CHECK: ret i1 false
|
|
}
|