[SPIR-V] Cherry-pick of "Add SPIR-V 1.4 checks" (#7493)

One of the patches missing in intel/llvm

Signed-off-by: Sidorov, Dmitry [email protected]

Original commit:
KhronosGroup/SPIRV-LLVM-Translator@c5b3c8e3283b

Second attempt

Author: MrSidims

llvm-spirv/lib/SPIRV/SPIRVWriter.cpp

@@ -1488,9 +1488,12 @@ LLVMToSPIRVBase::getLoopControl(const BranchInst *Branch,
       // PartialCount must not be used with the DontUnroll bit
       else if (S == "llvm.loop.unroll.count" &&
                !(LoopControl & LoopControlDontUnrollMask)) {
-        size_t I = getMDOperandAsInt(Node, 1);
-        ParametersToSort.emplace_back(spv::LoopControlPartialCountMask, I);
-        LoopControl |= spv::LoopControlPartialCountMask;
+        if (BM->isAllowedToUseVersion(VersionNumber::SPIRV_1_4)) {
+          BM->setMinSPIRVVersion(VersionNumber::SPIRV_1_4);
+          size_t I = getMDOperandAsInt(Node, 1);
+          ParametersToSort.emplace_back(spv::LoopControlPartialCountMask, I);
+          LoopControl |= spv::LoopControlPartialCountMask;
+        }
       } else if (S == "llvm.loop.ivdep.enable")
         LoopControl |= spv::LoopControlDependencyInfiniteMask;
       else if (S == "llvm.loop.ivdep.safelen") {
@@ -2653,10 +2656,10 @@ bool LLVMToSPIRVBase::transDecoration(Value *V, SPIRVValue *BV) {
 
   if (auto BVO = dyn_cast_or_null<OverflowingBinaryOperator>(V)) {
     if (BVO->hasNoSignedWrap()) {
-      BV->setNoSignedWrap(true);
+      BV->setNoIntegerDecorationWrap<DecorationNoSignedWrap>(true);
     }
     if (BVO->hasNoUnsignedWrap()) {
-      BV->setNoUnsignedWrap(true);
+      BV->setNoIntegerDecorationWrap<DecorationNoUnsignedWrap>(true);
     }
   }
 
@@ -4963,22 +4966,19 @@ bool LLVMToSPIRVBase::transExecutionMode() {
         }
       } break;
       case spv::ExecutionModeNoGlobalOffsetINTEL: {
-        if (BM->isAllowedToUseExtension(
-                ExtensionID::SPV_INTEL_kernel_attributes)) {
-          BF->addExecutionMode(BM->add(
-              new SPIRVExecutionMode(BF, static_cast<ExecutionMode>(EMode))));
-          BM->addExtension(ExtensionID::SPV_INTEL_kernel_attributes);
-          BM->addCapability(CapabilityKernelAttributesINTEL);
-        }
+        if (!BM->isAllowedToUseExtension(
+                ExtensionID::SPV_INTEL_kernel_attributes))
+          break;
+        BF->addExecutionMode(BM->add(
+            new SPIRVExecutionMode(BF, static_cast<ExecutionMode>(EMode))));
+        BM->addExtension(ExtensionID::SPV_INTEL_kernel_attributes);
+        BM->addCapability(CapabilityKernelAttributesINTEL);
       } break;
       case spv::ExecutionModeVecTypeHint:
       case spv::ExecutionModeSubgroupSize:
-      case spv::ExecutionModeSubgroupsPerWorkgroup: {
-        unsigned X;
-        N.get(X);
-        BF->addExecutionMode(BM->add(
-            new SPIRVExecutionMode(BF, static_cast<ExecutionMode>(EMode), X)));
-      } break;
+      case spv::ExecutionModeSubgroupsPerWorkgroup:
+        AddSingleArgExecutionMode(static_cast<ExecutionMode>(EMode));
+        break;
       case spv::ExecutionModeNumSIMDWorkitemsINTEL:
       case spv::ExecutionModeSchedulerTargetFmaxMhzINTEL:
       case spv::ExecutionModeMaxWorkDimINTEL:
@@ -4993,10 +4993,7 @@ bool LLVMToSPIRVBase::transExecutionMode() {
       case spv::ExecutionModeSharedLocalMemorySizeINTEL: {
         if (!BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_vector_compute))
           break;
-        unsigned SLMSize;
-        N.get(SLMSize);
-        BF->addExecutionMode(BM->add(new SPIRVExecutionMode(
-            BF, static_cast<ExecutionMode>(EMode), SLMSize)));
+        AddSingleArgExecutionMode(static_cast<ExecutionMode>(EMode));
       } break;
       case spv::ExecutionModeNamedBarrierCountINTEL: {
         if (!BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_vector_compute))
@@ -5014,12 +5011,14 @@ bool LLVMToSPIRVBase::transExecutionMode() {
       case spv::ExecutionModeSignedZeroInfNanPreserve:
       case spv::ExecutionModeRoundingModeRTE:
       case spv::ExecutionModeRoundingModeRTZ: {
-        if (!BM->isAllowedToUseExtension(ExtensionID::SPV_KHR_float_controls))
-          break;
-        unsigned TargetWidth;
-        N.get(TargetWidth);
-        BF->addExecutionMode(BM->add(new SPIRVExecutionMode(
-            BF, static_cast<ExecutionMode>(EMode), TargetWidth)));
+        if (BM->isAllowedToUseVersion(VersionNumber::SPIRV_1_4)) {
+          BM->setMinSPIRVVersion(VersionNumber::SPIRV_1_4);
+          AddSingleArgExecutionMode(static_cast<ExecutionMode>(EMode));
+        } else if (BM->isAllowedToUseExtension(
+                       ExtensionID::SPV_KHR_float_controls)) {
+          BM->addExtension(ExtensionID::SPV_KHR_float_controls);
+          AddSingleArgExecutionMode(static_cast<ExecutionMode>(EMode));
+        }
       } break;
       case spv::ExecutionModeRoundingModeRTPINTEL:
       case spv::ExecutionModeRoundingModeRTNINTEL:
@@ -5028,10 +5027,7 @@ bool LLVMToSPIRVBase::transExecutionMode() {
         if (!BM->isAllowedToUseExtension(
                 ExtensionID::SPV_INTEL_float_controls2))
           break;
-        unsigned TargetWidth;
-        N.get(TargetWidth);
-        BF->addExecutionMode(BM->add(new SPIRVExecutionMode(
-            BF, static_cast<ExecutionMode>(EMode), TargetWidth)));
+        AddSingleArgExecutionMode(static_cast<ExecutionMode>(EMode));
       } break;
       case spv::internal::ExecutionModeFastCompositeKernelINTEL: {
         if (BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_fast_composite))

llvm-spirv/lib/SPIRV/libSPIRV/SPIRVDecorate.h

@@ -94,6 +94,8 @@ class SPIRVDecorateGeneric : public SPIRVAnnotationGeneric {
 
     case DecorationMaxByteOffset:
       return static_cast<SPIRVWord>(VersionNumber::SPIRV_1_1);
+    case DecorationUserSemantic:
+      return static_cast<SPIRVWord>(VersionNumber::SPIRV_1_4);
 
     default:
       return static_cast<SPIRVWord>(VersionNumber::SPIRV_1_0);
@@ -127,9 +129,6 @@ class SPIRVDecorate : public SPIRVDecorateGeneric {
 
   std::optional<ExtensionID> getRequiredExtension() const override {
     switch (static_cast<size_t>(Dec)) {
-    case DecorationNoSignedWrap:
-    case DecorationNoUnsignedWrap:
-      return ExtensionID::SPV_KHR_no_integer_wrap_decoration;
     case DecorationRegisterINTEL:
     case DecorationMemoryINTEL:
     case DecorationNumbanksINTEL:

llvm-spirv/lib/SPIRV/libSPIRV/SPIRVEntry.h

@@ -845,12 +845,6 @@ class SPIRVCapability : public SPIRVEntryNoId<OpCapability> {
 
   std::optional<ExtensionID> getRequiredExtension() const override {
     switch (static_cast<unsigned>(Kind)) {
-    case CapabilityDenormPreserve:
-    case CapabilityDenormFlushToZero:
-    case CapabilitySignedZeroInfNanPreserve:
-    case CapabilityRoundingModeRTE:
-    case CapabilityRoundingModeRTZ:
-      return ExtensionID::SPV_KHR_float_controls;
     case CapabilityRoundToInfinityINTEL:
     case CapabilityFloatingPointModeINTEL:
     case CapabilityFunctionFloatControlINTEL:

llvm-spirv/lib/SPIRV/libSPIRV/SPIRVValue.cpp

@@ -75,45 +75,10 @@ bool SPIRVValue::hasNoSignedWrap() const {
   return hasDecorate(DecorationNoSignedWrap);
 }
 
-void SPIRVValue::setNoSignedWrap(bool HasNoSignedWrap) {
-  if (!HasNoSignedWrap) {
-    eraseDecorate(DecorationNoSignedWrap);
-  }
-  if (Module->isAllowedToUseExtension(
-          ExtensionID::SPV_KHR_no_integer_wrap_decoration)) {
-    // NoSignedWrap decoration is available only if it is allowed to use SPIR-V
-    // 1.4 or if SPV_KHR_no_integer_wrap_decoration extension is allowed
-    // FIXME: update this 'if' to include check for SPIR-V 1.4 once translator
-    // support this version
-    addDecorate(new SPIRVDecorate(DecorationNoSignedWrap, this));
-    SPIRVDBG(spvdbgs() << "Set nsw for obj " << Id << "\n")
-  } else {
-    SPIRVDBG(spvdbgs() << "Skip setting nsw for obj " << Id << "\n")
-  }
-}
-
 bool SPIRVValue::hasNoUnsignedWrap() const {
   return hasDecorate(DecorationNoUnsignedWrap);
 }
 
-void SPIRVValue::setNoUnsignedWrap(bool HasNoUnsignedWrap) {
-  if (!HasNoUnsignedWrap) {
-    eraseDecorate(DecorationNoUnsignedWrap);
-    return;
-  }
-  if (Module->isAllowedToUseExtension(
-          ExtensionID::SPV_KHR_no_integer_wrap_decoration)) {
-    // NoUnsignedWrap decoration is available only if it is allowed to use
-    // SPIR-V 1.4 or if SPV_KHR_no_integer_wrap_decoration extension is allowed
-    // FIXME: update this 'if' to include check for SPIR-V 1.4 once translator
-    // support this version
-    addDecorate(new SPIRVDecorate(DecorationNoUnsignedWrap, this));
-    SPIRVDBG(spvdbgs() << "Set nuw for obj " << Id << "\n")
-  } else {
-    SPIRVDBG(spvdbgs() << "Skip setting nuw for obj " << Id << "\n")
-  }
-}
-
 void SPIRVValue::setFPFastMathMode(SPIRVWord M) {
   if (M == 0) {
     eraseDecorate(DecorationFPFastMathMode);
@@ -124,6 +89,39 @@ void SPIRVValue::setFPFastMathMode(SPIRVWord M) {
                      << "\n")
 }
 
+template <spv::Decoration NoIntegerWrapDecoration>
+void SPIRVValue::setNoIntegerDecorationWrap(bool HasNoIntegerWrap) {
+  if (!HasNoIntegerWrap) {
+    eraseDecorate(NoIntegerWrapDecoration);
+    return;
+  }
+  // NoSignedWrap and NoUnsignedWrap decorations are available only if it is
+  // allowed to use SPIR-V 1.4 or if SPV_KHR_no_integer_wrap_decoration
+  // extension is enabled
+#ifdef _SPIRVDBG
+  const std::string InstStr =
+      NoIntegerWrapDecoration == DecorationNoSignedWrap ? "nsw" : "nuw";
+#endif // _SPIRVDBG
+  if (Module->isAllowedToUseVersion(VersionNumber::SPIRV_1_4)) {
+    Module->setMinSPIRVVersion(VersionNumber::SPIRV_1_4);
+    addDecorate(new SPIRVDecorate(NoIntegerWrapDecoration, this));
+    SPIRVDBG(spvdbgs() << "Set " << InstStr << " for obj " << Id << "\n")
+  } else if (Module->isAllowedToUseExtension(
+                 ExtensionID::SPV_KHR_no_integer_wrap_decoration)) {
+    Module->addExtension(ExtensionID::SPV_KHR_no_integer_wrap_decoration);
+    addDecorate(new SPIRVDecorate(NoIntegerWrapDecoration, this));
+    SPIRVDBG(spvdbgs() << "Set " << InstStr << " for obj " << Id << "\n")
+  } else {
+    SPIRVDBG(spvdbgs() << "Skip setting " << InstStr << " for obj " << Id
+                       << "\n")
+  }
+}
+
+template void
+SPIRVValue::setNoIntegerDecorationWrap<DecorationNoSignedWrap>(bool);
+template void
+SPIRVValue::setNoIntegerDecorationWrap<DecorationNoUnsignedWrap>(bool);
+
 template <spv::Op OC>
 void SPIRVConstantBase<OC>::setWords(const uint64_t *TheValue) {
   assert(TheValue && "Nullptr value");

llvm-spirv/lib/SPIRV/libSPIRV/SPIRVValue.h

@@ -98,8 +98,10 @@ class SPIRVValue : public SPIRVEntry {
 
   void setAlignment(SPIRVWord);
   void setVolatile(bool IsVolatile);
-  void setNoSignedWrap(bool HasNoSignedWrap);
-  void setNoUnsignedWrap(bool HasNoUnsignedWrap);
+
+  template <spv::Decoration NoIntegerWrapDecoration>
+  void setNoIntegerDecorationWrap(bool HasNoIntegerWrap);
+
   void setFPFastMathMode(SPIRVWord FPFastMathMode);
 
   void validate() const override {

llvm-spirv/test/extensions/INTEL/SPV_INTEL_vector_compute/exec_mode_float_control.ll

@@ -1,19 +1,24 @@
 ; RUN: llvm-as %s -o %t.bc
-; RUN: llvm-spirv %t.bc -o %t.spv --spirv-ext=+SPV_INTEL_vector_compute,+SPV_KHR_float_controls,+SPV_INTEL_float_controls2
+; RUN: llvm-spirv %t.bc -o %t.spv --spirv-max-version=1.1 --spirv-ext=+SPV_INTEL_vector_compute,+SPV_KHR_float_controls,+SPV_INTEL_float_controls2
 ; RUN: llvm-spirv %t.spv -o %t.spt --to-text
 ; RUN: llvm-spirv -r -emit-opaque-pointers %t.spv -o %t.bc
 ; RUN: llvm-dis %t.bc -o %t.ll
-; RUN: FileCheck %s --input-file %t.spt -check-prefix=SPV
+; RUN: FileCheck %s --input-file %t.spt -check-prefixes=SPV,SPVEXT
 ; RUN: FileCheck %s --input-file %t.ll  -check-prefix=LLVM
 
+; RUN: llvm-spirv %t.bc -o %t.spv --spirv-max-version=1.4 --spirv-ext=+SPV_INTEL_vector_compute,+SPV_INTEL_float_controls2
+; RUN: llvm-spirv %t.spv -o %t.spt --to-text
+; RUN: FileCheck %s --input-file %t.spt -check-prefixes=SPV,SPV14
+
 
 ; ModuleID = 'float_control.bc'
 source_filename = "float_control.cpp"
 target datalayout = "e-p:64:64-i64:64-n8:16:32"
 target triple = "spir"
 
 
-; SPV-DAG: Extension "SPV_KHR_float_controls"
+; SPVEXT-DAG: Extension "SPV_KHR_float_controls"
+; SPV14-NOT: Extension "SPV_KHR_float_controls"
 ; SPV-DAG: Extension "SPV_INTEL_float_controls2"
 
 ; LLVM-DAG: @k_rte{{[^a-zA-Z0-9_][^#]*}}#[[K_RTE:[0-9]+]]

llvm-spirv/test/extensions/KHR/SPV_KHR_float_controls/exec_mode_float_control_khr.ll

@@ -1,7 +1,13 @@
 ; RUN: llvm-as %s -o %t.bc
-; RUN: llvm-spirv %t.bc -o %t.spv --spirv-ext=+SPV_KHR_float_controls
+; RUN: llvm-spirv %t.bc -o %t.spv --spirv-max-version=1.1 --spirv-ext=+SPV_KHR_float_controls
 ; RUN: llvm-spirv %t.spv -o %t.spt --to-text
-; RUN: FileCheck %s --input-file %t.spt -check-prefix=SPV
+; RUN: FileCheck %s --input-file %t.spt -check-prefixes=SPV,SPVEXT
+; RUN: llvm-spirv %t.bc -o %t.spv --spirv-max-version=1.4
+; RUN: llvm-spirv %t.spv -o %t.spt --to-text
+; RUN: FileCheck %s --input-file %t.spt -check-prefixes=SPV,SPV14
+; RUN: llvm-spirv %t.bc -o %t.spv --spirv-max-version=1.1
+; RUN: llvm-spirv %t.spv -o %t.spt --to-text
+; RUN: FileCheck %s --input-file %t.spt -check-prefix=SPV-NEGATIVE
 
 ; ModuleID = 'float_control.bc'
 source_filename = "float_control.cpp"
@@ -44,6 +50,10 @@ entry:
 !spirv.EntryPoint = !{}
 !spirv.ExecutionMode = !{!15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !28, !29}
 
+; SPVEXT-DAG: Extension "SPV_KHR_float_controls"
+; SPV14-NOT: Extension "SPV_KHR_float_controls"
+; SPV-NEGATIVE-NOT: Extension "SPV_KHR_float_controls"
+
 ; SPV-DAG: EntryPoint {{[0-9]+}} [[KERNEL0:[0-9]+]] "k_float_controls_0"
 ; SPV-DAG: EntryPoint {{[0-9]+}} [[KERNEL1:[0-9]+]] "k_float_controls_1"
 ; SPV-DAG: EntryPoint {{[0-9]+}} [[KERNEL2:[0-9]+]] "k_float_controls_2"

llvm-spirv/test/extensions/KHR/SPV_KHR_no_integer_wrap_decoration/NoSignedUnsignedWrap.ll

@@ -8,10 +8,15 @@
 ; Positive tests:
 ;
 ; RUN: llvm-as %s -o %t.bc
-; RUN: llvm-spirv %t.bc --spirv-ext=+SPV_KHR_no_integer_wrap_decoration -spirv-text -o - | FileCheck %s --check-prefix=CHECK-SPIRV
-; RUN: llvm-spirv %t.bc --spirv-ext=+SPV_KHR_no_integer_wrap_decoration -o %t.spv
+; RUN: llvm-spirv %t.bc --spirv-max-version=1.1 --spirv-ext=+SPV_KHR_no_integer_wrap_decoration -spirv-text -o - | FileCheck %s --check-prefixes=CHECK-SPIRV,CHECK-SPIRV-EXT
+; RUN: llvm-spirv %t.bc --spirv-max-version=1.1 --spirv-ext=+SPV_KHR_no_integer_wrap_decoration -o %t.spv
 ; RUN: spirv-val %t.spv
-; RUN: llvm-spirv -r %t.spv --spirv-ext=+SPV_KHR_no_integer_wrap_decoration -o %t.rev.bc
+; RUN: llvm-spirv -r -emit-opaque-pointers %t.spv --spirv-max-version=1.1 --spirv-ext=+SPV_KHR_no_integer_wrap_decoration -o %t.rev.bc
+; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM
+; RUN: llvm-spirv %t.bc --spirv-max-version=1.4 -spirv-text -o - | FileCheck %s --check-prefixes=CHECK-SPIRV,CHECK-SPIRV-NOEXT
+; RUN: llvm-spirv %t.bc --spirv-max-version=1.4 -o %t.spv
+; RUN: spirv-val %t.spv
+; RUN: llvm-spirv -r -emit-opaque-pointers %t.spv --spirv-max-version=1.4 -o %t.rev.bc
 ; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM
 ;
 ; During consumption, any SPIR-V extension must be accepted by default
@@ -21,29 +26,29 @@
 ;
 ; Negative tests:
 ;
-; Check that translator is able to reject SPIR-V if extension is disallowed
-;
-; RUN: not llvm-spirv -r %t.spv --spirv-ext=-SPV_KHR_no_integer_wrap_decoration -o - 2>&1 | FileCheck %s --check-prefix=CHECK-INVALID-SPIRV
+; Check that translator is able to skip nsw/nuw attributes if extension is
+; disabled implicitly or explicitly and if max SPIR-V version is lower then 1.4
 ;
-; Check that translator is able to skip nsw/nuw attributes if extension is disabled implicitly or explicitly
-;
-; RUN: llvm-spirv %t.bc -spirv-text -o - | FileCheck %s --check-prefix=CHECK-SPIRV-NOEXT
-; RUN: llvm-spirv %t.bc -o %t.spv
-; RUN: llvm-spirv -r %t.spv -o %t.rev.bc
-; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM-NOEXT
+; RUN: llvm-spirv %t.bc --spirv-max-version=1.1 -spirv-text -o - | FileCheck %s --check-prefix=CHECK-SPIRV-NEGATIVE
+; RUN: llvm-spirv --spirv-max-version=1.1 %t.bc -o %t.spv
+; RUN: llvm-spirv -r -emit-opaque-pointers %t.spv -o %t.rev.bc
+; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM-NEGATIVE
 ;
-; RUN: llvm-spirv %t.bc --spirv-ext=-SPV_KHR_no_integer_wrap_decoration -spirv-text -o - | FileCheck %s --check-prefix=CHECK-SPIRV-NOEXT
-; RUN: llvm-spirv %t.bc --spirv-ext=-SPV_KHR_no_integer_wrap_decoration -o %t.spv
-; RUN: llvm-spirv -r %t.spv -o %t.rev.bc
-; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM-NOEXT
+; RUN: llvm-spirv %t.bc --spirv-max-version=1.1 --spirv-ext=-SPV_KHR_no_integer_wrap_decoration -spirv-text -o - | FileCheck %s --check-prefix=CHECK-SPIRV-NEGATIVE
+; RUN: llvm-spirv %t.bc --spirv-max-version=1.1 --spirv-ext=-SPV_KHR_no_integer_wrap_decoration -o %t.spv
+; RUN: llvm-spirv -r -emit-opaque-pointers %t.spv -o %t.rev.bc
+; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM-NEGATIVE
 
-; CHECK-SPIRV: Extension "SPV_KHR_no_integer_wrap_decoration"
+; Check SPIR-V versions in a format magic number + version
+; CHECK-SPIRV-EXT: 119734787 65536
+; CHECK-SPIRV-EXT: Extension "SPV_KHR_no_integer_wrap_decoration"
+; CHECK-SPIRV-NOEXT: 119734787 66560
 ; CHECK-SPIRV-DAG: Decorate {{[0-9]+}} NoSignedWrap
 ; CHECK-SPIRV-DAG: Decorate {{[0-9]+}} NoUnsignedWrap
 ;
-; CHECK-SPIRV-NOEXT-NOT: Extension "SPV_KHR_no_integer_wrap_decoration"
-; CHECK-SPIRV-NOEXT-NOT: Decorate {{[0-9]+}} NoSignedWrap
-; CHECK-SPIRV-NOEXT-NOT: Decorate {{[0-9]+}} NoUnsignedWrap
+; CHECK-SPIRV-NEGATIVE-NOT: Extension "SPV_KHR_no_integer_wrap_decoration"
+; CHECK-SPIRV-NEGATIVE-NOT: Decorate {{[0-9]+}} NoSignedWrap
+; CHECK-SPIRV-NEGATIVE-NOT: Decorate {{[0-9]+}} NoUnsignedWrap
 ;
 ; CHECK-INVALID-SPIRV: input SPIR-V module uses extension 'SPV_KHR_no_integer_wrap_decoration' which were disabled
 
@@ -55,7 +60,7 @@ define spir_func i32 @square(i16 zeroext %a) local_unnamed_addr #0 {
 entry:
   %conv = zext i16 %a to i32
   ; CHECK-LLVM: mul nuw nsw
-  ; CHECK-LLVM-NOEXT: mul i32
+  ; CHECK-LLVM-NEGATIVE: mul i32
   %mul = mul nuw nsw i32 %conv, %conv
   ret i32 %mul
 }

llvm-spirv/test/transcoding/LoopUnroll.ll

@@ -52,6 +52,13 @@
 ; RUN: FileCheck < %t.spt %s --check-prefix=CHECK-SPIRV
 ; RUN: llvm-spirv -r -emit-opaque-pointers %t.spv -o %t.rev.bc
 ; RUN: llvm-dis %t.rev.bc -o - | FileCheck %s --check-prefixes=CHECK-LLVM
+; RUN: llvm-spirv %t.bc -o %t.spv --spirv-max-version=1.1
+; RUN: llvm-spirv -to-text %t.spv -o %t.spt
+; RUN: FileCheck < %t.spt %s --check-prefix=CHECK-SPIRV-NEGATIVE
+
+; Check SPIR-V versions in a format magic number + version
+; CHECK-SPIRV: 119734787 66560
+; CHECK-SPIRV-NEGATIVE: 119734787 65536
 
 target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024"
 target triple = "spir64"
@@ -125,6 +132,7 @@ while.cond:                                       ; preds = %if.end, %if.then, %
 ; Per SPIRV spec p3.23 "Unroll" loop control = 0x1
 ; CHECK-SPIRV: LoopMerge [[#MERGEBLOCK:]] [[#CONTINUE:]] 256 8
 ; CHECK-SPIRV: BranchConditional [[#]] [[#]] [[#MERGEBLOCK]]
+; CHECK-SPIRV-NEGATIVE-NOT: LoopMerge {{.*}} 256
   br i1 %cmp, label %while.body, label %while.end
 
 while.body:                                       ; preds = %while.cond

llvm-spirv/test/transcoding/annotate_attribute.ll

@@ -10,6 +10,9 @@
 ; RUN: llvm-as -opaque-pointers=0 %s -o %t.bc
 ; RUN: llvm-spirv %t.bc -opaque-pointers=0 --spirv-ext=+SPV_INTEL_fpga_memory_accesses,+SPV_INTEL_fpga_memory_attributes -spirv-text -o - | FileCheck %s --check-prefix=CHECK-SPIRV
 
+; Check SPIR-V versions in a format magic number + version
+; CHECK-SPIRV: 119734787 66560
+
 ; CHECK-SPIRV-DAG: Decorate {{[0-9]+}} UserSemantic "42"
 ; CHECK-SPIRV-DAG: Decorate {{[0-9]+}} UserSemantic "bar"
 ; CHECK-SPIRV-DAG: Decorate {{[0-9]+}} UserSemantic "{FOO}"