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0c13130c71
We used to accept (and even test, and generate) 16-byte alignment for 32-byte nontemporal stores, but they require 32-byte alignment, per SDM. Found by inspection. Instead of hardcoding 16 in the patfrag, check for natural alignment. Also fix the autoupgrade and the various tests. Also, use explicit -mattr instead of -mcpu: I stared at the output several minutes wondering why I get 2x movntps for the unaligned case (which is the ideal output, but needs some work: see FIXME), until I remembered corei7-avx implies +slow-unaligned-mem-32. llvm-svn: 246733
13 lines
312 B
LLVM
13 lines
312 B
LLVM
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
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; Test that we produce a movntdq, not a vmovntdq
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; CHECK-NOT: vmovntdq
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define void @test(<2 x i64>* nocapture %a, <2 x i64> %b) nounwind optsize {
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entry:
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store <2 x i64> %b, <2 x i64>* %a, align 32, !nontemporal !0
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ret void
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}
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!0 = !{i32 1}
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