df24c92c0f
This is the conservatively correct default. It is always safe to assume xnack is enabled, but not the converse. Introduce a feature to blacklist targets where xnack can never be meaningfully enabled. I'm not sure the targets this is applied to is 100% correct. llvm-svn: 360903
68 lines
1.7 KiB
LLVM
68 lines
1.7 KiB
LLVM
; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -inline < %s | FileCheck %s
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; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes='cgscc(inline)' < %s | FileCheck %s
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define i32 @func_default() #0 {
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ret i32 0
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}
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define i32 @func_xnack_enabled() #1 {
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ret i32 0
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}
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define i32 @func_xnack_disabled() #2 {
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ret i32 0
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}
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; CHECK-LABEL: @default_call_default(
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; CHECK-NEXT: ret i32 0
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define i32 @default_call_default() #0 {
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%call = call i32 @func_default()
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ret i32 %call
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}
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; CHECK-LABEL: @xnack_enabled_call_default(
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; CHECK-NEXT: ret i32 0
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define i32 @xnack_enabled_call_default() #1 {
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%call = call i32 @func_default()
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ret i32 %call
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}
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; CHECK-LABEL: @xnack_enabled_call_xnack_enabled(
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; CHECK-NEXT: ret i32 0
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define i32 @xnack_enabled_call_xnack_enabled() #1 {
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%call = call i32 @func_xnack_enabled()
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ret i32 %call
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}
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; CHECK-LABEL: @xnack_enabled_call_xnack_disabled(
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; CHECK-NEXT: ret i32 0
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define i32 @xnack_enabled_call_xnack_disabled() #1 {
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%call = call i32 @func_xnack_disabled()
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ret i32 %call
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}
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; CHECK-LABEL: @xnack_disabled_call_default(
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; CHECK-NEXT: ret i32 0
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define i32 @xnack_disabled_call_default() #2 {
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%call = call i32 @func_default()
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ret i32 %call
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}
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; CHECK-LABEL: @xnack_disabled_call_xnack_enabled(
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; CHECK-NEXT: ret i32 0
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define i32 @xnack_disabled_call_xnack_enabled() #2 {
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%call = call i32 @func_xnack_enabled()
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ret i32 %call
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}
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; CHECK-LABEL: @xnack_disabled_call_xnack_disabled(
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; CHECK-NEXT: ret i32 0
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define i32 @xnack_disabled_call_xnack_disabled() #2 {
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%call = call i32 @func_xnack_disabled()
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ret i32 %call
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind "target-features"="+xnack" }
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attributes #2 = { nounwind "target-features"="-xnack" }
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