I am trying to compile a little intrinsic function for my machine. Here is a dump from clang-cc with --emit-llvm option: ==================== ; ModuleID = 'foo.c' target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32" target triple = "i386-pc-linux-gnu" @main.i = internal global i32 0 ; <i32*> [#uses=0] @main.x = internal global [10 x float] zeroinitializer ; <[10 x float]*> [#uses=0] @main.y = internal global [10 x float] zeroinitializer ; <[10 x float]*> [#uses=0] define i32 @main() nounwind { entry: %retval = alloca i32 ; <i32*> [#uses=2] %m1 = alloca <2 x double>, align 16 ; <<2 x double>*> [#uses=0] %m2 = alloca <2 x double>, align 16 ; <<2 x double>*> [#uses=0] %j = alloca i32, align 4 ; <i32*> [#uses=0] store i32 0, i32* %retval call void @llvm.mymachine.su.route(i32 5, i32 4) %0 = load i32* %retval ; <i32> [#uses=1] ret i32 %0 } declare void @llvm.mymachine.su.route(i32, i32) nounwind readnone ========================================== As you can see, the intrinsic function takes two integer arguments and does not return anything. For some reason I am getting into trouble when I use llc to process my .bc file. In visitTargetIntrinsic() the second argument to function ComputeValueVTs() - I.getType() == llvm::Type::VoidTyID. This leads me to the exception: "Cannot have nodes without results!". Is there is something wrong with my byte code or I messed up somewhere in llc code? Are there any other dumps that I can use while processing .bc file? Thanks. -- Fima
On Jan 6, 2010, at 1:12 PM, fima rabin wrote:> I am trying to compile a little intrinsic function for my machine. Here is a dump from clang-cc with --emit-llvm option: > ====================> > ; ModuleID = 'foo.c' > target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32" > target triple = "i386-pc-linux-gnu" > > @main.i = internal global i32 0 ; <i32*> [#uses=0] > @main.x = internal global [10 x float] zeroinitializer ; <[10 x float]*> [#uses=0] > @main.y = internal global [10 x float] zeroinitializer ; <[10 x float]*> [#uses=0] > > define i32 @main() nounwind { > entry: > %retval = alloca i32 ; <i32*> [#uses=2] > %m1 = alloca <2 x double>, align 16 ; <<2 x double>*> [#uses=0] > %m2 = alloca <2 x double>, align 16 ; <<2 x double>*> [#uses=0] > %j = alloca i32, align 4 ; <i32*> [#uses=0] > store i32 0, i32* %retval > call void @llvm.mymachine.su.route(i32 5, i32 4) > %0 = load i32* %retval ; <i32> [#uses=1] > ret i32 %0 > } > > declare void @llvm.mymachine.su.route(i32, i32) nounwind readnone > > ==========================================> > As you can see, the intrinsic function takes two integer arguments and does not > return anything. > > For some reason I am getting into trouble when I use llc to process my .bc file. In visitTargetIntrinsic() > the second argument to function ComputeValueVTs() - I.getType() == llvm::Type::VoidTyID. This leads me to > the exception: "Cannot have nodes without results!". > > Is there is something wrong with my byte code or I messed up somewhere in llc code? > > Are there any other dumps that I can use while processing .bc file? >What's the TD definition of your intrinsic? -bw
Here is my .td definition in IntrinsicsMymachine.td let TargetPrefix = "mymachine" in { // def int_mymachine_su_route : Intrinsic<[llvm_void_ty], [llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>; } -- fima ----- Original Message ---- From: Bill Wendling <wendling at apple.com> To: fima rabin <fimarn at yahoo.com> Cc: llvmdev at cs.uiuc.edu Sent: Wed, January 6, 2010 4:54:16 PM Subject: Re: [LLVMdev] something wrong with .ll file? On Jan 6, 2010, at 1:12 PM, fima rabin wrote:> I am trying to compile a little intrinsic function for my machine. Here is a dump from clang-cc with --emit-llvm option: > ====================> > ; ModuleID = 'foo.c' > target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32" > target triple = "i386-pc-linux-gnu" > > @main.i = internal global i32 0 ; <i32*> [#uses=0] > @main.x = internal global [10 x float] zeroinitializer ; <[10 x float]*> [#uses=0] > @main.y = internal global [10 x float] zeroinitializer ; <[10 x float]*> [#uses=0] > > define i32 @main() nounwind { > entry: > %retval = alloca i32 ; <i32*> [#uses=2] > %m1 = alloca <2 x double>, align 16 ; <<2 x double>*> [#uses=0] > %m2 = alloca <2 x double>, align 16 ; <<2 x double>*> [#uses=0] > %j = alloca i32, align 4 ; <i32*> [#uses=0] > store i32 0, i32* %retval > call void @llvm.mymachine.su.route(i32 5, i32 4) > %0 = load i32* %retval ; <i32> [#uses=1] > ret i32 %0 > } > > declare void @llvm.mymachine.su.route(i32, i32) nounwind readnone > > ==========================================> > As you can see, the intrinsic function takes two integer arguments and does not > return anything. > > For some reason I am getting into trouble when I use llc to process my .bc file. In visitTargetIntrinsic() > the second argument to function ComputeValueVTs() - I.getType() == llvm::Type::VoidTyID. This leads me to > the exception: "Cannot have nodes without results!". > > Is there is something wrong with my byte code or I messed up somewhere in llc code? > > Are there any other dumps that I can use while processing .bc file? >What's the TD definition of your intrinsic? -bw
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