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[WebAssembly] Update generic and bleeding-edge CPUs (#96584)
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This updates the list of features in 'generic' and 'bleeding-edge' CPUs
in the backend to match

https://github.com/llvm/llvm-project/blob/4e0a0eae58f7a6998866719f7eb970096a2a52e9/clang/lib/Basic/Targets/WebAssembly.cpp#L150-L178

This updates existing CodeGen tests in a way that, if a test has
separate RUN lines for a reference-types test and a non-reference-types
test, I added -mattr=-reference-types to the no-reftype test's RUN
command line. I didn't delete existing -mattr=+reference-types lines in
reftype tests because having it helps readability.

Also, when tests is not really about reference-types but they have to
updated because they happen to contain call_indirect lines because now
call_indirect will take __indirect_function_table as an argument, I just
added the table argument to the expected output.

`target-features-cpus.ll` has been updated reflecting the newly added
features.
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aheejin committed Jul 2, 2024
1 parent 122db8b commit fb6e024
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Showing 8 changed files with 56 additions and 18 deletions.
12 changes: 8 additions & 4 deletions llvm/lib/Target/WebAssembly/WebAssembly.td
Original file line number Diff line number Diff line change
Expand Up @@ -110,13 +110,17 @@ def : ProcessorModel<"mvp", NoSchedModel, []>;
// consideration given to available support in relevant engines and tools, and
// the importance of the features.
def : ProcessorModel<"generic", NoSchedModel,
[FeatureSignExt, FeatureMutableGlobals]>;
[FeatureMultivalue, FeatureMutableGlobals,
FeatureReferenceTypes, FeatureSignExt]>;

// Latest and greatest experimental version of WebAssembly. Bugs included!
def : ProcessorModel<"bleeding-edge", NoSchedModel,
[FeatureSIMD128, FeatureAtomics,
FeatureNontrappingFPToInt, FeatureSignExt,
FeatureMutableGlobals, FeatureBulkMemory,
[FeatureAtomics, FeatureBulkMemory,
FeatureExceptionHandling, FeatureExtendedConst,
FeatureHalfPrecision, FeatureMultiMemory,
FeatureMultivalue, FeatureMutableGlobals,
FeatureNontrappingFPToInt, FeatureRelaxedSIMD,
FeatureReferenceTypes, FeatureSIMD128, FeatureSignExt,
FeatureTailCall]>;

//===----------------------------------------------------------------------===//
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2 changes: 1 addition & 1 deletion llvm/test/CodeGen/WebAssembly/call-indirect.ll
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
; RUN: llc < %s -asm-verbose=false -O2 | FileCheck --check-prefixes=CHECK,NOREF %s
; RUN: llc < %s -asm-verbose=false -mattr=-reference-types -O2 | FileCheck --check-prefixes=CHECK,NOREF %s
; RUN: llc < %s -asm-verbose=false -mattr=+reference-types -O2 | FileCheck --check-prefixes=CHECK,REF %s
; RUN: llc < %s -asm-verbose=false -O2 --filetype=obj | obj2yaml | FileCheck --check-prefix=OBJ %s

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4 changes: 2 additions & 2 deletions llvm/test/CodeGen/WebAssembly/function-pointer64.ll
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
; RUN: llc < %s -asm-verbose=false -O2 | FileCheck %s
; RUN: llc < %s -asm-verbose=false -mattr=-reference-types -O2 | FileCheck %s
; RUN: llc < %s -asm-verbose=false -mattr=+reference-types -O2 | FileCheck --check-prefix=REF %s
; RUN: llc < %s -asm-verbose=false -O2 --filetype=obj | obj2yaml | FileCheck --check-prefix=YAML %s
; RUN: llc < %s -asm-verbose=false -mattr=-reference-types -O2 --filetype=obj | obj2yaml | FileCheck --check-prefix=YAML %s

; This tests pointer features that may codegen differently in wasm64.

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2 changes: 1 addition & 1 deletion llvm/test/CodeGen/WebAssembly/reg-stackify.ll
Original file line number Diff line number Diff line change
Expand Up @@ -649,7 +649,7 @@ define i32 @stackpointer_dependency(ptr readnone) {
; NOREGS-NEXT: local.tee 0
; NOREGS: i32.load 0
; NOREGS-NEXT: i32.load 0
; NOREGS-NEXT: call_indirect (i32, i32) -> (i32)
; NOREGS-NEXT: call_indirect __indirect_function_table, (i32, i32) -> (i32)
%class.call_indirect = type { ptr }
define i32 @call_indirect_stackify(ptr %objptr, i32 %arg) {
%obj = load ptr, ptr %objptr
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8 changes: 4 additions & 4 deletions llvm/test/CodeGen/WebAssembly/swiftcc.ll
Original file line number Diff line number Diff line change
Expand Up @@ -19,21 +19,21 @@ define swiftcc void @bar() {
call swiftcc void @foo(i32 1, i32 2)

; REG: call_indirect $pop{{[0-9]+}}, $pop{{[0-9]+}}, $pop{{[0-9]+}}, $pop{{[0-9]+}}
; CHECK: call_indirect (i32, i32, i32, i32) -> ()
; CHECK: call_indirect __indirect_function_table, (i32, i32, i32, i32) -> ()
call swiftcc void %1(i32 1, i32 2)

; REG: call_indirect $pop{{[0-9]+}}, $pop{{[0-9]+}}, $pop{{[0-9]+}}, $pop{{[0-9]+}}
; CHECK: call_indirect (i32, i32, i32, i32) -> ()
; CHECK: call_indirect __indirect_function_table, (i32, i32, i32, i32) -> ()
call swiftcc void %1(i32 1, i32 2, i32 swiftself 3)

%err = alloca swifterror ptr, align 4

; REG: call_indirect $pop{{[0-9]+}}, $pop{{[0-9]+}}, $pop{{[0-9]+}}, $pop{{[0-9]+}}
; CHECK: call_indirect (i32, i32, i32, i32) -> ()
; CHECK: call_indirect __indirect_function_table, (i32, i32, i32, i32) -> ()
call swiftcc void %1(i32 1, i32 2, ptr swifterror %err)

; REG: call_indirect $pop{{[0-9]+}}, $pop{{[0-9]+}}, $pop{{[0-9]+}}, $pop{{[0-9]+}}
; CHECK: call_indirect (i32, i32, i32, i32) -> ()
; CHECK: call_indirect __indirect_function_table, (i32, i32, i32, i32) -> ()
call swiftcc void %1(i32 1, i32 2, i32 swiftself 3, ptr swifterror %err)

ret void
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39 changes: 34 additions & 5 deletions llvm/test/CodeGen/WebAssembly/target-features-cpus.ll
Original file line number Diff line number Diff line change
Expand Up @@ -11,33 +11,62 @@ target triple = "wasm32-unknown-unknown"
; mvp: should not contain the target features section
; MVP-NOT: .custom_section.target_features,"",@

; generic: +mutable-globals, +sign-ext
; generic: +multivalue, +mutable-globals, +reference-types, +sign-ext
; GENERIC-LABEL: .custom_section.target_features,"",@
; GENERIC-NEXT: .int8 2
; GENERIC-NEXT: .int8 4
; GENERIC-NEXT: .int8 43
; GENERIC-NEXT: .int8 10
; GENERIC-NEXT: .ascii "multivalue"
; GENERIC-NEXT: .int8 43
; GENERIC-NEXT: .int8 15
; GENERIC-NEXT: .ascii "mutable-globals"
; GENERIC-NEXT: .int8 43
; GENERIC-NEXT: .int8 15
; GENERIC-NEXT: .ascii "reference-types"
; GENERIC-NEXT: .int8 43
; GENERIC-NEXT: .int8 8
; GENERIC-NEXT: .ascii "sign-ext"

; bleeding-edge: +atomics, +bulk-memory, +mutable-globals, +nontrapping-fptoint,
; +sign-ext, +simd128, +tail-call
; bleeding-edge: +atomics, +bulk-memory, +exception-handling, +extended-const,
; +half-precision, +multimemory, +multivalue, +mutable-globals,
; +nontrapping-fptoint, +relaxed-simd, +reference-types,
; +simd128, +sign-ext, +tail-call
; BLEEDING-EDGE-LABEL: .section .custom_section.target_features,"",@
; BLEEDING-EDGE-NEXT: .int8 7
; BLEEDING-EDGE-NEXT: .int8 14
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 7
; BLEEDING-EDGE-NEXT: .ascii "atomics"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 11
; BLEEDING-EDGE-NEXT: .ascii "bulk-memory"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 18
; BLEEDING-EDGE-NEXT: .ascii "exception-handling"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 14
; BLEEDING-EDGE-NEXT: .ascii "extended-const"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 14
; BLEEDING-EDGE-NEXT: .ascii "half-precision"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 11
; BLEEDING-EDGE-NEXT: .ascii "multimemory"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 10
; BLEEDING-EDGE-NEXT: .ascii "multivalue"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 15
; BLEEDING-EDGE-NEXT: .ascii "mutable-globals"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 19
; BLEEDING-EDGE-NEXT: .ascii "nontrapping-fptoint"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 15
; BLEEDING-EDGE-NEXT: .ascii "reference-types"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 12
; BLEEDING-EDGE-NEXT: .ascii "relaxed-simd"
; BLEEDING-EDGE-NEXT: .int8 43
; BLEEDING-EDGE-NEXT: .int8 8
; BLEEDING-EDGE-NEXT: .ascii "sign-ext"
; BLEEDING-EDGE-NEXT: .int8 43
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2 changes: 1 addition & 1 deletion llvm/test/MC/WebAssembly/function-alias.ll
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
; RUN: llc -filetype=obj %s -o - | llvm-readobj --symbols - | FileCheck %s
; RUN: llc -filetype=obj %s -mattr=-reference-types -o - | llvm-readobj --symbols - | FileCheck %s
; RUN: llc -filetype=obj %s -mattr=+reference-types -o - | llvm-readobj --symbols - | FileCheck --check-prefix=REF %s

target triple = "wasm32-unknown-unknown-wasm"
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5 changes: 5 additions & 0 deletions llvm/test/MC/WebAssembly/no-dead-strip.ll
Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,11 @@ entry:
; CHECK-NEXT: Segment: 3
; CHECK-NEXT: Offset: 8
; CHECK-NEXT: Size: 8
; CHECK-NEXT: - Index: 5
; CHECK-NEXT: Kind: TABLE
; CHECK-NEXT: Name: __indirect_function_table
; CHECK-NEXT: Flags: [ UNDEFINED, NO_STRIP ]
; CHECK-NEXT: Table: 0
; CHECK-NEXT: SegmentInfo:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: .data.gv0
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