llvm-6502/test/CodeGen/SystemZ/int-move-02.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

111 lines
2.5 KiB
LLVM

; Test 32-bit GPR loads.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; Check the low end of the L range.
define i32 @f1(i32 *%src) {
; CHECK: f1:
; CHECK: l %r2, 0(%r2)
; CHECK: br %r14
%val = load i32 *%src
ret i32 %val
}
; Check the high end of the aligned L range.
define i32 @f2(i32 *%src) {
; CHECK: f2:
; CHECK: l %r2, 4092(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%src, i64 1023
%val = load i32 *%ptr
ret i32 %val
}
; Check the next word up, which should use LY instead of L.
define i32 @f3(i32 *%src) {
; CHECK: f3:
; CHECK: ly %r2, 4096(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%src, i64 1024
%val = load i32 *%ptr
ret i32 %val
}
; Check the high end of the aligned LY range.
define i32 @f4(i32 *%src) {
; CHECK: f4:
; CHECK: ly %r2, 524284(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%src, i64 131071
%val = load i32 *%ptr
ret i32 %val
}
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define i32 @f5(i32 *%src) {
; CHECK: f5:
; CHECK: agfi %r2, 524288
; CHECK: l %r2, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%src, i64 131072
%val = load i32 *%ptr
ret i32 %val
}
; Check the high end of the negative aligned LY range.
define i32 @f6(i32 *%src) {
; CHECK: f6:
; CHECK: ly %r2, -4(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%src, i64 -1
%val = load i32 *%ptr
ret i32 %val
}
; Check the low end of the LY range.
define i32 @f7(i32 *%src) {
; CHECK: f7:
; CHECK: ly %r2, -524288(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%src, i64 -131072
%val = load i32 *%ptr
ret i32 %val
}
; Check the next word down, which needs separate address logic.
; Other sequences besides this one would be OK.
define i32 @f8(i32 *%src) {
; CHECK: f8:
; CHECK: agfi %r2, -524292
; CHECK: l %r2, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%src, i64 -131073
%val = load i32 *%ptr
ret i32 %val
}
; Check that L allows an index.
define i32 @f9(i64 %src, i64 %index) {
; CHECK: f9:
; CHECK: l %r2, 4095({{%r3,%r2|%r2,%r3}})
; CHECK: br %r14
%add1 = add i64 %src, %index
%add2 = add i64 %add1, 4095
%ptr = inttoptr i64 %add2 to i32 *
%val = load i32 *%ptr
ret i32 %val
}
; Check that LY allows an index.
define i32 @f10(i64 %src, i64 %index) {
; CHECK: f10:
; CHECK: ly %r2, 4096({{%r3,%r2|%r2,%r3}})
; CHECK: br %r14
%add1 = add i64 %src, %index
%add2 = add i64 %add1, 4096
%ptr = inttoptr i64 %add2 to i32 *
%val = load i32 *%ptr
ret i32 %val
}