788e7b3b8c
This fixes LanaiTTIImpl::getIntImmCost to return valid costs for i128 (and wider) values. Previously any immediate wider than 64 bits would cause Lanai llc to crash. A regression test is also added that exercises this functionality. Reviewed By: jpienaar Differential Revision: https://reviews.llvm.org/D107091
23 lines
641 B
LLVM
23 lines
641 B
LLVM
; RUN: llc -march=lanai < %s | FileCheck %s
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; Tests that lowering wide registers (128 bits or more) works on Lanai.
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; The emitted assembly is not checked, we just do a smoketest.
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target datalayout = "E-m:e-p:32:32-i64:64-a:0:32-n32-S64"
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target triple = "lanai"
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; CHECK-LABEL: add128:
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define i128 @add128(i128 %x, i128 %y) {
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%a = add i128 %x, %y
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ret i128 %a
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}
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; CHECK-LABEL: immshift128:
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define i128 @immshift128(i1 %sel) unnamed_addr {
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%a = add i128 0, 340282366920938463463374007431768209319
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%b = add i128 0, 340282366920938463463374607431768209320
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%c = select i1 %sel, i128 %a, i128 %b
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%d = shl i128 %a, 10
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ret i128 %d
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}
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