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ed18a3e6b2
This option has been disabled for a while, and it is going away so I can clean up the coalescer code. The tests that required physreg joining to be enabled were almost all of the form "tiny function with interference between arguments and return value". Such functions are usually inlined in the real world. The problem exposed by phys_subreg_coalesce-3.ll is real, but fairly rare. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157027 91177308-0d34-0410-b5e6-96231b3b80d8
33 lines
993 B
LLVM
33 lines
993 B
LLVM
; RUN: llc < %s -march=x86 -mattr=sse41 -mcpu=nehalem -stack-alignment=16 > %t
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; RUN: grep pmul %t | count 12
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; RUN: grep mov %t | count 11
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define <4 x i32> @a(<4 x i32> %i) nounwind {
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%A = mul <4 x i32> %i, < i32 117, i32 117, i32 117, i32 117 >
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ret <4 x i32> %A
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}
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define <2 x i64> @b(<2 x i64> %i) nounwind {
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%A = mul <2 x i64> %i, < i64 117, i64 117 >
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ret <2 x i64> %A
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}
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define <4 x i32> @c(<4 x i32> %i, <4 x i32> %j) nounwind {
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%A = mul <4 x i32> %i, %j
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ret <4 x i32> %A
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}
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define <2 x i64> @d(<2 x i64> %i, <2 x i64> %j) nounwind {
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%A = mul <2 x i64> %i, %j
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ret <2 x i64> %A
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}
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; Use a call to force spills.
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declare void @foo()
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define <4 x i32> @e(<4 x i32> %i, <4 x i32> %j) nounwind {
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call void @foo()
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%A = mul <4 x i32> %i, %j
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ret <4 x i32> %A
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}
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define <2 x i64> @f(<2 x i64> %i, <2 x i64> %j) nounwind {
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call void @foo()
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%A = mul <2 x i64> %i, %j
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ret <2 x i64> %A
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}
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