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91c3170ffd
In rare cases, common code will attempt to select an OR of two constants. This confuses the logic in splitLargeImmediate, causing an internal error during isel. Fixed by simply leaving this case to common code to handle. This fixes PR34859. llvm-svn: 318187
303 lines
6.5 KiB
LLVM
303 lines
6.5 KiB
LLVM
; Test loading of 64-bit constants.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare void @foo(i64, i64, i64, i64)
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; Check 0.
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define i64 @f1() {
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; CHECK-LABEL: f1:
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; CHECK: lghi %r2, 0
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; CHECK-NEXT: br %r14
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ret i64 0
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}
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; Check the high end of the LGHI range.
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define i64 @f2() {
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; CHECK-LABEL: f2:
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; CHECK: lghi %r2, 32767
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; CHECK-NEXT: br %r14
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ret i64 32767
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}
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; Check the next value up, which must use LLILL instead.
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define i64 @f3() {
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; CHECK-LABEL: f3:
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; CHECK: llill %r2, 32768
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; CHECK-NEXT: br %r14
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ret i64 32768
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}
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; Check the high end of the LLILL range.
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define i64 @f4() {
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; CHECK-LABEL: f4:
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; CHECK: llill %r2, 65535
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; CHECK-NEXT: br %r14
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ret i64 65535
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}
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; Check the first useful LLILH value, which is the next one up.
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define i64 @f5() {
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; CHECK-LABEL: f5:
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; CHECK: llilh %r2, 1
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; CHECK-NEXT: br %r14
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ret i64 65536
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}
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; Check the first useful LGFI value, which is the next one up again.
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define i64 @f6() {
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; CHECK-LABEL: f6:
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; CHECK: lgfi %r2, 65537
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; CHECK-NEXT: br %r14
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ret i64 65537
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}
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; Check the high end of the LGFI range.
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define i64 @f7() {
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; CHECK-LABEL: f7:
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; CHECK: lgfi %r2, 2147483647
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; CHECK-NEXT: br %r14
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ret i64 2147483647
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}
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; Check the next value up, which should use LLILH instead.
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define i64 @f8() {
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; CHECK-LABEL: f8:
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; CHECK: llilh %r2, 32768
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; CHECK-NEXT: br %r14
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ret i64 2147483648
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}
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; Check the next value up again, which should use LLILF.
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define i64 @f9() {
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; CHECK-LABEL: f9:
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; CHECK: llilf %r2, 2147483649
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; CHECK-NEXT: br %r14
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ret i64 2147483649
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}
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; Check the high end of the LLILH range.
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define i64 @f10() {
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; CHECK-LABEL: f10:
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; CHECK: llilh %r2, 65535
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; CHECK-NEXT: br %r14
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ret i64 4294901760
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}
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; Check the next value up, which must use LLILF.
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define i64 @f11() {
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; CHECK-LABEL: f11:
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; CHECK: llilf %r2, 4294901761
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; CHECK-NEXT: br %r14
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ret i64 4294901761
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}
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; Check the high end of the LLILF range.
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define i64 @f12() {
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; CHECK-LABEL: f12:
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; CHECK: llilf %r2, 4294967295
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; CHECK-NEXT: br %r14
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ret i64 4294967295
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}
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; Check the lowest useful LLIHL value, which is the next one up.
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define i64 @f13() {
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; CHECK-LABEL: f13:
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; CHECK: llihl %r2, 1
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; CHECK-NEXT: br %r14
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ret i64 4294967296
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}
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; Check the next value up, which must use a combination of two instructions.
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define i64 @f14() {
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; CHECK-LABEL: f14:
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; CHECK: llihl %r2, 1
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; CHECK-NEXT: oill %r2, 1
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; CHECK-NEXT: br %r14
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ret i64 4294967297
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}
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; Check the high end of the OILL range.
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define i64 @f15() {
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; CHECK-LABEL: f15:
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; CHECK: llihl %r2, 1
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; CHECK-NEXT: oill %r2, 65535
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; CHECK-NEXT: br %r14
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ret i64 4295032831
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}
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; Check the next value up, which should use OILH instead.
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define i64 @f16() {
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; CHECK-LABEL: f16:
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; CHECK: llihl %r2, 1
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; CHECK-NEXT: oilh %r2, 1
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; CHECK-NEXT: br %r14
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ret i64 4295032832
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}
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; Check the next value up again, which should use OILF.
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define i64 @f17() {
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; CHECK-LABEL: f17:
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; CHECK: llihl %r2, 1
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; CHECK-NEXT: oilf %r2, 65537
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; CHECK-NEXT: br %r14
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ret i64 4295032833
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}
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; Check the high end of the OILH range.
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define i64 @f18() {
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; CHECK-LABEL: f18:
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; CHECK: llihl %r2, 1
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; CHECK-NEXT: oilh %r2, 65535
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; CHECK-NEXT: br %r14
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ret i64 8589869056
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}
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; Check the high end of the OILF range.
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define i64 @f19() {
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; CHECK-LABEL: f19:
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; CHECK: llihl %r2, 1
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; CHECK-NEXT: oilf %r2, 4294967295
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; CHECK-NEXT: br %r14
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ret i64 8589934591
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}
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; Check the high end of the LLIHL range.
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define i64 @f20() {
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; CHECK-LABEL: f20:
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; CHECK: llihl %r2, 65535
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; CHECK-NEXT: br %r14
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ret i64 281470681743360
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}
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; Check the lowest useful LLIHH value, which is 1<<32 greater than the above.
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define i64 @f21() {
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; CHECK-LABEL: f21:
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; CHECK: llihh %r2, 1
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; CHECK-NEXT: br %r14
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ret i64 281474976710656
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}
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; Check the lowest useful LLIHF value, which is 1<<32 greater again.
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define i64 @f22() {
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; CHECK-LABEL: f22:
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; CHECK: llihf %r2, 65537
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; CHECK-NEXT: br %r14
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ret i64 281479271677952
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}
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; Check the highest end of the LLIHH range.
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define i64 @f23() {
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; CHECK-LABEL: f23:
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; CHECK: llihh %r2, 65535
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; CHECK-NEXT: br %r14
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ret i64 -281474976710656
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}
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; Check the next value up, which must use OILL too.
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define i64 @f24() {
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; CHECK-LABEL: f24:
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; CHECK: llihh %r2, 65535
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; CHECK-NEXT: oill %r2, 1
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; CHECK-NEXT: br %r14
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ret i64 -281474976710655
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}
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; Check the high end of the LLIHF range.
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define i64 @f25() {
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; CHECK-LABEL: f25:
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; CHECK: llihf %r2, 4294967295
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; CHECK-NEXT: br %r14
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ret i64 -4294967296
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}
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; Check -1.
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define i64 @f26() {
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; CHECK-LABEL: f26:
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; CHECK: lghi %r2, -1
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; CHECK-NEXT: br %r14
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ret i64 -1
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}
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; Check the low end of the LGHI range.
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define i64 @f27() {
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; CHECK-LABEL: f27:
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; CHECK: lghi %r2, -32768
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; CHECK-NEXT: br %r14
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ret i64 -32768
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}
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; Check the next value down, which must use LGFI instead.
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define i64 @f28() {
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; CHECK-LABEL: f28:
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; CHECK: lgfi %r2, -32769
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; CHECK-NEXT: br %r14
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ret i64 -32769
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}
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; Check the low end of the LGFI range.
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define i64 @f29() {
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; CHECK-LABEL: f29:
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; CHECK: lgfi %r2, -2147483648
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; CHECK-NEXT: br %r14
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ret i64 -2147483648
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}
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; Check the next value down, which needs a two-instruction sequence.
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define i64 @f30() {
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; CHECK-LABEL: f30:
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; CHECK: llihf %r2, 4294967295
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; CHECK-NEXT: oilf %r2, 2147483647
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; CHECK-NEXT: br %r14
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ret i64 -2147483649
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}
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; Check that constant loads are rematerialized.
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define i64 @f31() {
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; CHECK-LABEL: f31:
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; CHECK-DAG: lghi %r2, 42
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; CHECK-DAG: lgfi %r3, 65537
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; CHECK-DAG: llilf %r4, 2147483649
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; CHECK-DAG: llihf %r5, 65537
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; CHECK: brasl %r14, foo@PLT
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; CHECK-DAG: llill %r2, 32768
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; CHECK-DAG: llilh %r3, 1
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; CHECK-DAG: llihl %r4, 1
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; CHECK-DAG: llihh %r5, 1
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; CHECK: brasl %r14, foo@PLT
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; CHECK-DAG: lghi %r2, 42
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; CHECK-DAG: lgfi %r3, 65537
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; CHECK-DAG: llilf %r4, 2147483649
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; CHECK-DAG: llihf %r5, 65537
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; CHECK: brasl %r14, foo@PLT
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; CHECK-DAG: llill %r2, 32768
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; CHECK-DAG: llilh %r3, 1
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; CHECK-DAG: llihl %r4, 1
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; CHECK-DAG: llihh %r5, 1
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; CHECK: brasl %r14, foo@PLT
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; CHECK: lghi %r2, 42
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; CHECK: br %r14
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call void @foo(i64 42, i64 65537, i64 2147483649, i64 281479271677952)
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call void @foo(i64 32768, i64 65536, i64 4294967296, i64 281474976710656)
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call void @foo(i64 42, i64 65537, i64 2147483649, i64 281479271677952)
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call void @foo(i64 32768, i64 65536, i64 4294967296, i64 281474976710656)
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ret i64 42
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}
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; Verify that we do not crash on OR with two constant inputs
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; (this was PR34859).
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define i64 @f32(i64 *%ptr) {
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; CHECK-LABEL: f32:
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; CHECK: llihf %r1, 918324340
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; CHECK: oilf %r1, 1806197964
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; CHECK: la %r0, 1(%r1)
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store i64 -1, i64* %ptr, align 8
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%1 = load i64, i64* %ptr, align 8
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%2 = icmp ne i64 %1, 0
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%3 = zext i1 %2 to i64
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%4 = or i64 %3, 3944173009226982604
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store i64 %4, i64* %ptr, align 8
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ret i64 3944173009226982604
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}
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