mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-16 11:30:51 +00:00
d27f911b23
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92383 91177308-0d34-0410-b5e6-96231b3b80d8
102 lines
3.0 KiB
LLVM
102 lines
3.0 KiB
LLVM
; RUN: opt %s -instcombine -S | FileCheck %s
|
|
|
|
%overflow.result = type {i8, i1}
|
|
|
|
declare %overflow.result @llvm.uadd.with.overflow.i8(i8, i8)
|
|
declare %overflow.result @llvm.umul.with.overflow.i8(i8, i8)
|
|
declare double @llvm.powi.f64(double, i32) nounwind readonly
|
|
|
|
define i8 @test1(i8 %A, i8 %B) {
|
|
%x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 %A, i8 %B)
|
|
%y = extractvalue %overflow.result %x, 0
|
|
ret i8 %y
|
|
; CHECK: @test1
|
|
; CHECK-NEXT: %y = add i8 %A, %B
|
|
; CHECK-NEXT: ret i8 %y
|
|
}
|
|
|
|
define i8 @test2(i8 %A, i8 %B, i1* %overflowPtr) {
|
|
%and.A = and i8 %A, 127
|
|
%and.B = and i8 %B, 127
|
|
%x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 %and.A, i8 %and.B)
|
|
%y = extractvalue %overflow.result %x, 0
|
|
%z = extractvalue %overflow.result %x, 1
|
|
store i1 %z, i1* %overflowPtr
|
|
ret i8 %y
|
|
; CHECK: @test2
|
|
; CHECK-NEXT: %and.A = and i8 %A, 127
|
|
; CHECK-NEXT: %and.B = and i8 %B, 127
|
|
; CHECK-NEXT: %1 = add nuw i8 %and.A, %and.B
|
|
; CHECK-NEXT: store i1 false, i1* %overflowPtr
|
|
; CHECK-NEXT: ret i8 %1
|
|
}
|
|
|
|
define i8 @test3(i8 %A, i8 %B, i1* %overflowPtr) {
|
|
%or.A = or i8 %A, -128
|
|
%or.B = or i8 %B, -128
|
|
%x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 %or.A, i8 %or.B)
|
|
%y = extractvalue %overflow.result %x, 0
|
|
%z = extractvalue %overflow.result %x, 1
|
|
store i1 %z, i1* %overflowPtr
|
|
ret i8 %y
|
|
; CHECK: @test3
|
|
; CHECK-NEXT: %or.A = or i8 %A, -128
|
|
; CHECK-NEXT: %or.B = or i8 %B, -128
|
|
; CHECK-NEXT: %1 = add i8 %or.A, %or.B
|
|
; CHECK-NEXT: store i1 true, i1* %overflowPtr
|
|
; CHECK-NEXT: ret i8 %1
|
|
}
|
|
|
|
define i8 @test4(i8 %A, i1* %overflowPtr) {
|
|
%x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 undef, i8 %A)
|
|
%y = extractvalue %overflow.result %x, 0
|
|
%z = extractvalue %overflow.result %x, 1
|
|
store i1 %z, i1* %overflowPtr
|
|
ret i8 %y
|
|
; CHECK: @test4
|
|
; CHECK-NEXT: ret i8 undef
|
|
}
|
|
|
|
define i8 @test5(i8 %A, i1* %overflowPtr) {
|
|
%x = call %overflow.result @llvm.umul.with.overflow.i8(i8 0, i8 %A)
|
|
%y = extractvalue %overflow.result %x, 0
|
|
%z = extractvalue %overflow.result %x, 1
|
|
store i1 %z, i1* %overflowPtr
|
|
ret i8 %y
|
|
; CHECK: @test5
|
|
; CHECK-NEXT: store i1 false, i1* %overflowPtr
|
|
; CHECK-NEXT: ret i8 0
|
|
}
|
|
|
|
define i8 @test6(i8 %A, i1* %overflowPtr) {
|
|
%x = call %overflow.result @llvm.umul.with.overflow.i8(i8 1, i8 %A)
|
|
%y = extractvalue %overflow.result %x, 0
|
|
%z = extractvalue %overflow.result %x, 1
|
|
store i1 %z, i1* %overflowPtr
|
|
ret i8 %y
|
|
; CHECK: @test6
|
|
; CHECK-NEXT: store i1 false, i1* %overflowPtr
|
|
; CHECK-NEXT: ret i8 %A
|
|
}
|
|
|
|
|
|
define void @powi(double %V, double *%P) {
|
|
entry:
|
|
%A = tail call double @llvm.powi.f64(double %V, i32 -1) nounwind
|
|
volatile store double %A, double* %P
|
|
|
|
%B = tail call double @llvm.powi.f64(double %V, i32 0) nounwind
|
|
volatile store double %B, double* %P
|
|
|
|
%C = tail call double @llvm.powi.f64(double %V, i32 1) nounwind
|
|
volatile store double %C, double* %P
|
|
ret void
|
|
; CHECK: @powi
|
|
; CHECK: %A = fdiv double 1.0{{.*}}, %V
|
|
; CHECK: volatile store double %A,
|
|
; CHECK: volatile store double 1.0
|
|
; CHECK: volatile store double %V
|
|
}
|
|
|
|
|