94 lines
2.7 KiB
LLVM
94 lines
2.7 KiB
LLVM
; Test 128-bit addition when the distinct-operands facility is available.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
|
|
|
|
; Test the case where both operands are in registers.
|
|
define i64 @f1(i64 %a, i64 %b, i64 %c, i64 %d, i64 *%ptr) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: algrk %r2, %r4, %r5
|
|
; CHECK: alcgr
|
|
; CHECK: br %r14
|
|
%x1 = insertelement <2 x i64> undef, i64 %b, i32 0
|
|
%x2 = insertelement <2 x i64> %x1, i64 %c, i32 1
|
|
%x = bitcast <2 x i64> %x2 to i128
|
|
%y2 = insertelement <2 x i64> %x1, i64 %d, i32 1
|
|
%y = bitcast <2 x i64> %y2 to i128
|
|
%add = add i128 %x, %y
|
|
%addv = bitcast i128 %add to <2 x i64>
|
|
%high = extractelement <2 x i64> %addv, i32 0
|
|
store i64 %high, i64 *%ptr
|
|
%low = extractelement <2 x i64> %addv, i32 1
|
|
ret i64 %low
|
|
}
|
|
|
|
; Test addition of 1.
|
|
define void @f2(i64 %a, i64 %b, i128 *%ptr) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: alghsik {{%r[0-5]}}, %r3, 1
|
|
; CHECK: alcgr
|
|
; CHECK: br %r14
|
|
%x1 = insertelement <2 x i64> undef, i64 %a, i32 0
|
|
%x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
|
|
%x = bitcast <2 x i64> %x2 to i128
|
|
%add = add i128 %x, 1
|
|
store i128 %add, i128 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Test the upper end of the ALGHSIK range.
|
|
define void @f3(i64 %a, i64 %b, i128 *%ptr) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: alghsik {{%r[0-5]}}, %r3, 32767
|
|
; CHECK: alcgr
|
|
; CHECK: br %r14
|
|
%x1 = insertelement <2 x i64> undef, i64 %a, i32 0
|
|
%x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
|
|
%x = bitcast <2 x i64> %x2 to i128
|
|
%add = add i128 %x, 32767
|
|
store i128 %add, i128 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Test the next value up, which should use ALGFI instead.
|
|
define void @f4(i64 %a, i64 %b, i128 *%ptr) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: algfi %r3, 32768
|
|
; CHECK: alcgr
|
|
; CHECK: br %r14
|
|
%x1 = insertelement <2 x i64> undef, i64 %a, i32 0
|
|
%x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
|
|
%x = bitcast <2 x i64> %x2 to i128
|
|
%add = add i128 %x, 32768
|
|
store i128 %add, i128 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Test the lower end of the ALGHSIK range.
|
|
define void @f5(i64 %a, i64 %b, i128 *%ptr) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: alghsik {{%r[0-5]}}, %r3, -32768
|
|
; CHECK: alcgr
|
|
; CHECK: br %r14
|
|
%x1 = insertelement <2 x i64> undef, i64 %a, i32 0
|
|
%x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
|
|
%x = bitcast <2 x i64> %x2 to i128
|
|
%add = add i128 %x, -32768
|
|
store i128 %add, i128 *%ptr
|
|
ret void
|
|
}
|
|
|
|
; Test the next value down, which cannot use either ALGHSIK or ALGFI.
|
|
define void @f6(i64 %a, i64 %b, i128 *%ptr) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK-NOT: alghsik
|
|
; CHECK-NOT: algfi
|
|
; CHECK: alcgr
|
|
; CHECK: br %r14
|
|
%x1 = insertelement <2 x i64> undef, i64 %a, i32 0
|
|
%x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
|
|
%x = bitcast <2 x i64> %x2 to i128
|
|
%add = add i128 %x, -32769
|
|
store i128 %add, i128 *%ptr
|
|
ret void
|
|
}
|