Kai Nacke a1710eb3cd [SystemZ][NFC] Opaque pointer migration.
The LIT test cases were migrated with the script provided by
Nikita Popov.

No manual changes were made. Committed without review since
no functional changes, after consultation with uweigand.
2022-10-11 21:09:43 +00:00

96 lines
2.3 KiB
LLVM

; Test additions between an i64 and a sign-extended i16 on z14.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
declare i64 @foo()
; Check AGH with no displacement.
define i64 @f1(i64 %a, ptr %src) {
; CHECK-LABEL: f1:
; CHECK: agh %r2, 0(%r3)
; CHECK: br %r14
%b = load i16, ptr %src
%bext = sext i16 %b to i64
%add = add i64 %a, %bext
ret i64 %add
}
; Check the high end of the aligned AGH range.
define i64 @f2(i64 %a, ptr %src) {
; CHECK-LABEL: f2:
; CHECK: agh %r2, 524286(%r3)
; CHECK: br %r14
%ptr = getelementptr i16, ptr %src, i64 262143
%b = load i16, ptr %ptr
%bext = sext i16 %b to i64
%add = add i64 %a, %bext
ret i64 %add
}
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define i64 @f3(i64 %a, ptr %src) {
; CHECK-LABEL: f3:
; CHECK: agfi %r3, 524288
; CHECK: agh %r2, 0(%r3)
; CHECK: br %r14
%ptr = getelementptr i16, ptr %src, i64 262144
%b = load i16, ptr %ptr
%bext = sext i16 %b to i64
%add = add i64 %a, %bext
ret i64 %add
}
; Check the high end of the negative aligned AGH range.
define i64 @f4(i64 %a, ptr %src) {
; CHECK-LABEL: f4:
; CHECK: agh %r2, -2(%r3)
; CHECK: br %r14
%ptr = getelementptr i16, ptr %src, i64 -1
%b = load i16, ptr %ptr
%bext = sext i16 %b to i64
%add = add i64 %a, %bext
ret i64 %add
}
; Check the low end of the AGH range.
define i64 @f5(i64 %a, ptr %src) {
; CHECK-LABEL: f5:
; CHECK: agh %r2, -524288(%r3)
; CHECK: br %r14
%ptr = getelementptr i16, ptr %src, i64 -262144
%b = load i16, ptr %ptr
%bext = sext i16 %b to i64
%add = add i64 %a, %bext
ret i64 %add
}
; Check the next word down, which needs separate address logic.
; Other sequences besides this one would be OK.
define i64 @f6(i64 %a, ptr %src) {
; CHECK-LABEL: f6:
; CHECK: agfi %r3, -524290
; CHECK: agh %r2, 0(%r3)
; CHECK: br %r14
%ptr = getelementptr i16, ptr %src, i64 -262145
%b = load i16, ptr %ptr
%bext = sext i16 %b to i64
%add = add i64 %a, %bext
ret i64 %add
}
; Check that AGH allows an index.
define i64 @f7(i64 %a, i64 %src, i64 %index) {
; CHECK-LABEL: f7:
; CHECK: agh %r2, 524284({{%r4,%r3|%r3,%r4}})
; CHECK: br %r14
%add1 = add i64 %src, %index
%add2 = add i64 %add1, 524284
%ptr = inttoptr i64 %add2 to ptr
%b = load i16, ptr %ptr
%bext = sext i16 %b to i64
%add = add i64 %a, %bext
ret i64 %add
}