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.
23 lines
775 B
LLVM
23 lines
775 B
LLVM
; Test 128-bit subtraction 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: slgrk %r2, %r4, %r5
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; CHECK: slbgr
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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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%sub = sub i128 %x, %y
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%subv = bitcast i128 %sub to <2 x i64>
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%high = extractelement <2 x i64> %subv, i32 0
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store i64 %high, ptr %ptr
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%low = extractelement <2 x i64> %subv, i32 1
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ret i64 %low
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}
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