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250efba0f3
This improves the X86 cost model for small constants with large types. Before this commit we would even hoist trivial constants such as i96 2. This is related to <rdar://problem/17070936> llvm-svn: 210504
18 lines
657 B
LLVM
18 lines
657 B
LLVM
; RUN: opt -S -consthoist < %s | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.9.0"
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; Test if the 3rd argument of a stackmap is hoisted.
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define i128 @test1(i128 %a) {
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; CHECK-LABEL: @test1
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; CHECK: %const = bitcast i128 134646182756734033220 to i128
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; CHECK: tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 1, i32 24, i128 %const)
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entry:
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%0 = add i128 %a, 134646182756734033220
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tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 1, i32 24, i128 134646182756734033220)
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ret i128 %0
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}
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declare void @llvm.experimental.stackmap(i64, i32, ...)
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