llvm-6502/test/CodeGen/SystemZ/int-add-06.ll
Ulrich Weigand b503b49b51 [SystemZ] Add CodeGen test cases
This adds all CodeGen tests for the SystemZ target.

This version of the patch incorporates feedback from a review by
Sean Silva.  Thanks to all reviewers!

Patch by Richard Sandiford.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181204 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06 16:17:29 +00:00

94 lines
1.8 KiB
LLVM

; Test 32-bit addition in which the second operand is constant.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; Check additions of 1.
define i32 @f1(i32 %a) {
; CHECK: f1:
; CHECK: ahi %r2, 1
; CHECK: br %r14
%add = add i32 %a, 1
ret i32 %add
}
; Check the high end of the AHI range.
define i32 @f2(i32 %a) {
; CHECK: f2:
; CHECK: ahi %r2, 32767
; CHECK: br %r14
%add = add i32 %a, 32767
ret i32 %add
}
; Check the next value up, which must use AFI instead.
define i32 @f3(i32 %a) {
; CHECK: f3:
; CHECK: afi %r2, 32768
; CHECK: br %r14
%add = add i32 %a, 32768
ret i32 %add
}
; Check the high end of the signed 32-bit range.
define i32 @f4(i32 %a) {
; CHECK: f4:
; CHECK: afi %r2, 2147483647
; CHECK: br %r14
%add = add i32 %a, 2147483647
ret i32 %add
}
; Check the next value up, which is treated as a negative value.
define i32 @f5(i32 %a) {
; CHECK: f5:
; CHECK: afi %r2, -2147483648
; CHECK: br %r14
%add = add i32 %a, 2147483648
ret i32 %add
}
; Check the high end of the negative AHI range.
define i32 @f6(i32 %a) {
; CHECK: f6:
; CHECK: ahi %r2, -1
; CHECK: br %r14
%add = add i32 %a, -1
ret i32 %add
}
; Check the low end of the AHI range.
define i32 @f7(i32 %a) {
; CHECK: f7:
; CHECK: ahi %r2, -32768
; CHECK: br %r14
%add = add i32 %a, -32768
ret i32 %add
}
; Check the next value down, which must use AFI instead.
define i32 @f8(i32 %a) {
; CHECK: f8:
; CHECK: afi %r2, -32769
; CHECK: br %r14
%add = add i32 %a, -32769
ret i32 %add
}
; Check the low end of the signed 32-bit range.
define i32 @f9(i32 %a) {
; CHECK: f9:
; CHECK: afi %r2, -2147483648
; CHECK: br %r14
%add = add i32 %a, -2147483648
ret i32 %add
}
; Check the next value down, which is treated as a positive value.
define i32 @f10(i32 %a) {
; CHECK: f10:
; CHECK: afi %r2, 2147483647
; CHECK: br %r14
%add = add i32 %a, -2147483649
ret i32 %add
}