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This patch lets the llvm tools handle the new HVX target features that
are added by frontend (clang). The target-features are of the form
"hvx-length64b" for 64 Byte HVX mode, "hvx-length128b" for 128 Byte mode HVX.
"hvx-double" is an alias to "hvx-length128b" and is soon will be deprecated.
The hvx version target feature is upgated form "+hvx" to "+hvxv{version_number}.
Eg: "+hvxv62"
For the correct HVX code generation, the user must use the following
target features.
For 64B mode: "+hvxv62" "+hvx-length64b"
For 128B mode: "+hvxv62" "+hvx-length128b"
Clang picks a default length if none is specified. If for some reason,
no hvx-length is specified to llvm, the compilation will bail out.
There is a corresponding clang patch.
Differential Revision: https://reviews.llvm.org/D38851
llvm-svn: 316101
38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
; RUN: llc -march=hexagon -relocation-model=pic -mattr=+long-calls < %s | FileCheck --check-prefix=CHECK-LONG %s
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; RUN: llc -march=hexagon -relocation-model=pic < %s | FileCheck %s
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; CHECK-LONG: call ##_ZL13g_usr1_called@GDPLT
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; CHECK-LONG-NOT: call _ZL13g_usr1_called@GDPLT
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; CHECK: call _ZL13g_usr1_called@GDPLT
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; CHECK-NOT: call ##_ZL13g_usr1_called@GDPLT
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target triple = "hexagon"
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@_ZL13g_usr1_called = internal thread_local global i32 0, align 4
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; Function Attrs: norecurse nounwind
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define void @_Z14SigUsr1Handleri(i32) local_unnamed_addr #0 {
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entry:
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store volatile i32 1, i32* @_ZL13g_usr1_called, align 4
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ret void
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}
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; Function Attrs: norecurse nounwind
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define zeroext i1 @_Z27CheckForMonitorCancellationv() local_unnamed_addr #0 {
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entry:
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%0 = load volatile i32, i32* @_ZL13g_usr1_called, align 4
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%tobool = icmp eq i32 %0, 0
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br i1 %tobool, label %return, label %if.then
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if.then: ; preds = %entry
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store volatile i32 0, i32* @_ZL13g_usr1_called, align 4
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br label %return
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return: ; preds = %entry, %if.then
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%.sink = phi i1 [ true, %if.then ], [ false, %entry ]
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ret i1 %.sink
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}
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attributes #0 = { norecurse nounwind "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b" }
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