a1710eb3cd
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.
94 lines
2.7 KiB
LLVM
94 lines
2.7 KiB
LLVM
; Test 128-bit addition when the distinct-operands facility is available.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
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; Test the case where both operands are in registers.
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define i64 @f1(i64 %a, i64 %b, i64 %c, i64 %d, ptr %ptr) {
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; CHECK-LABEL: f1:
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; CHECK: algrk %r2, %r4, %r5
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; CHECK: alcgr
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; CHECK: br %r14
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%x1 = insertelement <2 x i64> undef, i64 %b, i32 0
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%x2 = insertelement <2 x i64> %x1, i64 %c, i32 1
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%x = bitcast <2 x i64> %x2 to i128
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%y2 = insertelement <2 x i64> %x1, i64 %d, i32 1
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%y = bitcast <2 x i64> %y2 to i128
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%add = add i128 %x, %y
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%addv = bitcast i128 %add to <2 x i64>
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%high = extractelement <2 x i64> %addv, i32 0
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store i64 %high, ptr %ptr
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%low = extractelement <2 x i64> %addv, i32 1
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ret i64 %low
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}
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; Test addition of 1.
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define void @f2(i64 %a, i64 %b, ptr %ptr) {
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; CHECK-LABEL: f2:
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; CHECK: alghsik {{%r[0-5]}}, %r3, 1
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; CHECK: alcgr
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; CHECK: br %r14
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%x1 = insertelement <2 x i64> undef, i64 %a, i32 0
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%x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
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%x = bitcast <2 x i64> %x2 to i128
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%add = add i128 %x, 1
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store i128 %add, ptr %ptr
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ret void
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}
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; Test the upper end of the ALGHSIK range.
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define void @f3(i64 %a, i64 %b, ptr %ptr) {
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; CHECK-LABEL: f3:
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; CHECK: alghsik {{%r[0-5]}}, %r3, 32767
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; CHECK: alcgr
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; CHECK: br %r14
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%x1 = insertelement <2 x i64> undef, i64 %a, i32 0
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%x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
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%x = bitcast <2 x i64> %x2 to i128
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%add = add i128 %x, 32767
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store i128 %add, ptr %ptr
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ret void
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}
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; Test the next value up, which should use ALGFI instead.
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define void @f4(i64 %a, i64 %b, ptr %ptr) {
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; CHECK-LABEL: f4:
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; CHECK: algfi %r3, 32768
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; CHECK: alcgr
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; CHECK: br %r14
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%x1 = insertelement <2 x i64> undef, i64 %a, i32 0
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%x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
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%x = bitcast <2 x i64> %x2 to i128
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%add = add i128 %x, 32768
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store i128 %add, ptr %ptr
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ret void
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}
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; Test the lower end of the ALGHSIK range.
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define void @f5(i64 %a, i64 %b, ptr %ptr) {
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; CHECK-LABEL: f5:
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; CHECK: alghsik {{%r[0-5]}}, %r3, -32768
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; CHECK: alcgr
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; CHECK: br %r14
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%x1 = insertelement <2 x i64> undef, i64 %a, i32 0
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%x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
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%x = bitcast <2 x i64> %x2 to i128
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%add = add i128 %x, -32768
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store i128 %add, ptr %ptr
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ret void
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}
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; Test the next value down, which cannot use either ALGHSIK or ALGFI.
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define void @f6(i64 %a, i64 %b, ptr %ptr) {
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; CHECK-LABEL: f6:
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; CHECK-NOT: alghsik
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; CHECK-NOT: algfi
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; CHECK: alcgr
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; CHECK: br %r14
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%x1 = insertelement <2 x i64> undef, i64 %a, i32 0
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%x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
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%x = bitcast <2 x i64> %x2 to i128
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%add = add i128 %x, -32769
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store i128 %add, ptr %ptr
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ret void
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}
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