mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
141 lines
3.5 KiB
LLVM
141 lines
3.5 KiB
LLVM
; Test 64-bit subtraction in which the second operand is variable.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
|
|
|
|
declare i64 @foo()
|
|
|
|
; Check SGR.
|
|
define i64 @f1(i64 %a, i64 %b) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: sgr %r2, %r3
|
|
; CHECK: br %r14
|
|
%sub = sub i64 %a, %b
|
|
ret i64 %sub
|
|
}
|
|
|
|
; Check SG with no displacement.
|
|
define i64 @f2(i64 %a, i64 *%src) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: sg %r2, 0(%r3)
|
|
; CHECK: br %r14
|
|
%b = load i64 *%src
|
|
%sub = sub i64 %a, %b
|
|
ret i64 %sub
|
|
}
|
|
|
|
; Check the high end of the aligned SG range.
|
|
define i64 @f3(i64 %a, i64 *%src) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: sg %r2, 524280(%r3)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i64 *%src, i64 65535
|
|
%b = load i64 *%ptr
|
|
%sub = sub i64 %a, %b
|
|
ret i64 %sub
|
|
}
|
|
|
|
; Check the next doubleword up, which needs separate address logic.
|
|
; Other sequences besides this one would be OK.
|
|
define i64 @f4(i64 %a, i64 *%src) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: agfi %r3, 524288
|
|
; CHECK: sg %r2, 0(%r3)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i64 *%src, i64 65536
|
|
%b = load i64 *%ptr
|
|
%sub = sub i64 %a, %b
|
|
ret i64 %sub
|
|
}
|
|
|
|
; Check the high end of the negative aligned SG range.
|
|
define i64 @f5(i64 %a, i64 *%src) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: sg %r2, -8(%r3)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i64 *%src, i64 -1
|
|
%b = load i64 *%ptr
|
|
%sub = sub i64 %a, %b
|
|
ret i64 %sub
|
|
}
|
|
|
|
; Check the low end of the SG range.
|
|
define i64 @f6(i64 %a, i64 *%src) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: sg %r2, -524288(%r3)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i64 *%src, i64 -65536
|
|
%b = load i64 *%ptr
|
|
%sub = sub i64 %a, %b
|
|
ret i64 %sub
|
|
}
|
|
|
|
; Check the next doubleword down, which needs separate address logic.
|
|
; Other sequences besides this one would be OK.
|
|
define i64 @f7(i64 %a, i64 *%src) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK: agfi %r3, -524296
|
|
; CHECK: sg %r2, 0(%r3)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i64 *%src, i64 -65537
|
|
%b = load i64 *%ptr
|
|
%sub = sub i64 %a, %b
|
|
ret i64 %sub
|
|
}
|
|
|
|
; Check that SG allows an index.
|
|
define i64 @f8(i64 %a, i64 %src, i64 %index) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: sg %r2, 524280({{%r4,%r3|%r3,%r4}})
|
|
; CHECK: br %r14
|
|
%add1 = add i64 %src, %index
|
|
%add2 = add i64 %add1, 524280
|
|
%ptr = inttoptr i64 %add2 to i64 *
|
|
%b = load i64 *%ptr
|
|
%sub = sub i64 %a, %b
|
|
ret i64 %sub
|
|
}
|
|
|
|
; Check that subtractions of spilled values can use SG rather than SGR.
|
|
define i64 @f9(i64 *%ptr0) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK: brasl %r14, foo@PLT
|
|
; CHECK: sg %r2, 160(%r15)
|
|
; CHECK: br %r14
|
|
%ptr1 = getelementptr i64 *%ptr0, i64 2
|
|
%ptr2 = getelementptr i64 *%ptr0, i64 4
|
|
%ptr3 = getelementptr i64 *%ptr0, i64 6
|
|
%ptr4 = getelementptr i64 *%ptr0, i64 8
|
|
%ptr5 = getelementptr i64 *%ptr0, i64 10
|
|
%ptr6 = getelementptr i64 *%ptr0, i64 12
|
|
%ptr7 = getelementptr i64 *%ptr0, i64 14
|
|
%ptr8 = getelementptr i64 *%ptr0, i64 16
|
|
%ptr9 = getelementptr i64 *%ptr0, i64 18
|
|
|
|
%val0 = load i64 *%ptr0
|
|
%val1 = load i64 *%ptr1
|
|
%val2 = load i64 *%ptr2
|
|
%val3 = load i64 *%ptr3
|
|
%val4 = load i64 *%ptr4
|
|
%val5 = load i64 *%ptr5
|
|
%val6 = load i64 *%ptr6
|
|
%val7 = load i64 *%ptr7
|
|
%val8 = load i64 *%ptr8
|
|
%val9 = load i64 *%ptr9
|
|
|
|
%ret = call i64 @foo()
|
|
|
|
%sub0 = sub i64 %ret, %val0
|
|
%sub1 = sub i64 %sub0, %val1
|
|
%sub2 = sub i64 %sub1, %val2
|
|
%sub3 = sub i64 %sub2, %val3
|
|
%sub4 = sub i64 %sub3, %val4
|
|
%sub5 = sub i64 %sub4, %val5
|
|
%sub6 = sub i64 %sub5, %val6
|
|
%sub7 = sub i64 %sub6, %val7
|
|
%sub8 = sub i64 %sub7, %val8
|
|
%sub9 = sub i64 %sub8, %val9
|
|
|
|
ret i64 %sub9
|
|
}
|