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[Flang] Use PrintModulePass to print LLVM IR from the frontend #95142

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Jun 12, 2024
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[Flang] Use PrintModulePass to print LLVM IR from the frontend #95142

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12 changes: 5 additions & 7 deletions flang/lib/Frontend/FrontendActions.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,7 @@
#include "llvm/IR/LLVMRemarkStreamer.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/IR/Verifier.h"
#include "llvm/IRPrinter/IRPrintingPasses.h"
#include "llvm/IRReader/IRReader.h"
#include "llvm/Object/OffloadBinary.h"
#include "llvm/Passes/PassBuilder.h"
Expand Down Expand Up @@ -995,6 +996,8 @@ void CodeGenAction::runOptimizationPipeline(llvm::raw_pwrite_stream &os) {

if (action == BackendActionTy::Backend_EmitBC)
mpm.addPass(llvm::BitcodeWriterPass(os));
else if (action == BackendActionTy::Backend_EmitLL)
mpm.addPass(llvm::PrintModulePass(os));

// Run the passes.
mpm.run(*llvmModule, mam);
Expand Down Expand Up @@ -1270,13 +1273,8 @@ void CodeGenAction::executeAction() {
// Run LLVM's middle-end (i.e. the optimizer).
runOptimizationPipeline(ci.isOutputStreamNull() ? *os : ci.getOutputStream());

if (action == BackendActionTy::Backend_EmitLL) {
llvmModule->print(ci.isOutputStreamNull() ? *os : ci.getOutputStream(),
/*AssemblyAnnotationWriter=*/nullptr);
return;
}

if (action == BackendActionTy::Backend_EmitBC) {
if (action == BackendActionTy::Backend_EmitLL ||
action == BackendActionTy::Backend_EmitBC) {
// This action has effectively been completed in runOptimizationPipeline.
return;
}
Expand Down
126 changes: 71 additions & 55 deletions flang/test/Transforms/debug-local-var-2.f90
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Original file line number Diff line number Diff line change
@@ -1,57 +1,73 @@
! RUN: %flang_fc1 -emit-llvm -debug-info-kind=standalone %s -o - | FileCheck %s
! RUN: %flang_fc1 -emit-llvm -debug-info-kind=line-tables-only %s -o - | FileCheck --check-prefix=LINEONLY %s
! RUN: %flang_fc1 -emit-llvm -debug-info-kind=standalone %s -mllvm --write-experimental-debuginfo=false -o - | FileCheck %s --check-prefixes=BOTH,INTRINSICS
! RUN: %flang_fc1 -emit-llvm -debug-info-kind=standalone %s -mllvm --write-experimental-debuginfo=true -o - | FileCheck %s --check-prefixes=BOTH,RECORDS
! RUN: %flang_fc1 -emit-llvm -debug-info-kind=line-tables-only %s -mllvm --write-experimental-debuginfo=false -o - | FileCheck --check-prefix=LINEONLY %s
! RUN: %flang_fc1 -emit-llvm -debug-info-kind=line-tables-only %s -mllvm --write-experimental-debuginfo=true -o - | FileCheck --check-prefix=LINEONLY %s

! This tests checks the debug information for local variables in llvm IR.

! CHECK-LABEL: define void @_QQmain
! CHECK-DAG: %[[AL11:.*]] = alloca i32
! CHECK-DAG: %[[AL12:.*]] = alloca i64
! CHECK-DAG: %[[AL13:.*]] = alloca i8
! CHECK-DAG: %[[AL14:.*]] = alloca i32
! CHECK-DAG: %[[AL15:.*]] = alloca float
! CHECK-DAG: %[[AL16:.*]] = alloca double
! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL11]], metadata ![[I4:.*]], metadata !DIExpression())
! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL12]], metadata ![[I8:.*]], metadata !DIExpression())
! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL13]], metadata ![[L1:.*]], metadata !DIExpression())
! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL14]], metadata ![[L4:.*]], metadata !DIExpression())
! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL15]], metadata ![[R4:.*]], metadata !DIExpression())
! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL16]], metadata ![[R8:.*]], metadata !DIExpression())
! CHECK-LABEL: }
! BOTH-LABEL: define void @_QQmain
! BOTH-DAG: %[[AL11:.*]] = alloca i32
! BOTH-DAG: %[[AL12:.*]] = alloca i64
! BOTH-DAG: %[[AL13:.*]] = alloca i8
! BOTH-DAG: %[[AL14:.*]] = alloca i32
! BOTH-DAG: %[[AL15:.*]] = alloca float
! BOTH-DAG: %[[AL16:.*]] = alloca double
! INTRINSICS-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL11]], metadata ![[I4:.*]], metadata !DIExpression())
! INTRINSICS-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL12]], metadata ![[I8:.*]], metadata !DIExpression())
! INTRINSICS-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL13]], metadata ![[L1:.*]], metadata !DIExpression())
! INTRINSICS-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL14]], metadata ![[L4:.*]], metadata !DIExpression())
! INTRINSICS-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL15]], metadata ![[R4:.*]], metadata !DIExpression())
! INTRINSICS-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL16]], metadata ![[R8:.*]], metadata !DIExpression())
! RECORDS-DAG: #dbg_declare(ptr %[[AL11]], ![[I4:.*]], !DIExpression(), !{{.*}})
! RECORDS-DAG: #dbg_declare(ptr %[[AL12]], ![[I8:.*]], !DIExpression(), !{{.*}})
! RECORDS-DAG: #dbg_declare(ptr %[[AL13]], ![[L1:.*]], !DIExpression(), !{{.*}})
! RECORDS-DAG: #dbg_declare(ptr %[[AL14]], ![[L4:.*]], !DIExpression(), !{{.*}})
! RECORDS-DAG: #dbg_declare(ptr %[[AL15]], ![[R4:.*]], !DIExpression(), !{{.*}})
! RECORDS-DAG: #dbg_declare(ptr %[[AL16]], ![[R8:.*]], !DIExpression(), !{{.*}})
! BOTH-LABEL: }

! CHECK-LABEL: define {{.*}}i64 @_QFPfn1
! CHECK-SAME: (ptr %[[ARG1:.*]], ptr %[[ARG2:.*]], ptr %[[ARG3:.*]])
! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[ARG1]], metadata ![[A1:.*]], metadata !DIExpression())
! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[ARG2]], metadata ![[B1:.*]], metadata !DIExpression())
! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[ARG3]], metadata ![[C1:.*]], metadata !DIExpression())
! CHECK-DAG: %[[AL2:.*]] = alloca i64
! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[AL2]], metadata ![[RES1:.*]], metadata !DIExpression())
! CHECK-LABEL: }
! BOTH-LABEL: define {{.*}}i64 @_QFPfn1
! BOTH-SAME: (ptr %[[ARG1:.*]], ptr %[[ARG2:.*]], ptr %[[ARG3:.*]])
! INTRINSICS-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[ARG1]], metadata ![[A1:.*]], metadata !DIExpression())
! INTRINSICS-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[ARG2]], metadata ![[B1:.*]], metadata !DIExpression())
! INTRINSICS-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[ARG3]], metadata ![[C1:.*]], metadata !DIExpression())
! RECORDS-DAG: #dbg_declare(ptr %[[ARG1]], ![[A1:.*]], !DIExpression(), !{{.*}})
! RECORDS-DAG: #dbg_declare(ptr %[[ARG2]], ![[B1:.*]], !DIExpression(), !{{.*}})
! RECORDS-DAG: #dbg_declare(ptr %[[ARG3]], ![[C1:.*]], !DIExpression(), !{{.*}})
! BOTH-DAG: %[[AL2:.*]] = alloca i64
! INTRINSICS-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[AL2]], metadata ![[RES1:.*]], metadata !DIExpression())
! RECORDS-DAG: #dbg_declare(ptr %[[AL2]], ![[RES1:.*]], !DIExpression(), !{{.*}})
! BOTH-LABEL: }

! CHECK-LABEL: define {{.*}}i32 @_QFPfn2
! CHECK-SAME: (ptr %[[FN2ARG1:.*]], ptr %[[FN2ARG2:.*]], ptr %[[FN2ARG3:.*]])
! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[FN2ARG1]], metadata ![[A2:.*]], metadata !DIExpression())
! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[FN2ARG2]], metadata ![[B2:.*]], metadata !DIExpression())
! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[FN2ARG3]], metadata ![[C2:.*]], metadata !DIExpression())
! CHECK-DAG: %[[AL3:.*]] = alloca i32
! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[AL3]], metadata ![[RES2:.*]], metadata !DIExpression())
! CHECK-LABEL: }
! BOTH-LABEL: define {{.*}}i32 @_QFPfn2
! BOTH-SAME: (ptr %[[FN2ARG1:.*]], ptr %[[FN2ARG2:.*]], ptr %[[FN2ARG3:.*]])
! INTRINSICS-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[FN2ARG1]], metadata ![[A2:.*]], metadata !DIExpression())
! INTRINSICS-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[FN2ARG2]], metadata ![[B2:.*]], metadata !DIExpression())
! INTRINSICS-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[FN2ARG3]], metadata ![[C2:.*]], metadata !DIExpression())
! RECORDS-DAG: #dbg_declare(ptr %[[FN2ARG1]], ![[A2:.*]], !DIExpression(), !{{.*}})
! RECORDS-DAG: #dbg_declare(ptr %[[FN2ARG2]], ![[B2:.*]], !DIExpression(), !{{.*}})
! RECORDS-DAG: #dbg_declare(ptr %[[FN2ARG3]], ![[C2:.*]], !DIExpression(), !{{.*}})
! BOTH-DAG: %[[AL3:.*]] = alloca i32
! INTRINSICS-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[AL3]], metadata ![[RES2:.*]], metadata !DIExpression())
! RECORDS-DAG: #dbg_declare(ptr %[[AL3]], ![[RES2:.*]], !DIExpression(), !{{.*}})
! BOTH-LABEL: }

program mn
! CHECK-DAG: ![[MAIN:.*]] = distinct !DISubprogram(name: "_QQmain", {{.*}})
! BOTH-DAG: ![[MAIN:.*]] = distinct !DISubprogram(name: "_QQmain", {{.*}})

! CHECK-DAG: ![[TYI32:.*]] = !DIBasicType(name: "integer", size: 32, encoding: DW_ATE_signed)
! CHECK-DAG: ![[TYI64:.*]] = !DIBasicType(name: "integer", size: 64, encoding: DW_ATE_signed)
! CHECK-DAG: ![[TYL8:.*]] = !DIBasicType(name: "logical", size: 8, encoding: DW_ATE_boolean)
! CHECK-DAG: ![[TYL32:.*]] = !DIBasicType(name: "logical", size: 32, encoding: DW_ATE_boolean)
! CHECK-DAG: ![[TYR32:.*]] = !DIBasicType(name: "real", size: 32, encoding: DW_ATE_float)
! CHECK-DAG: ![[TYR64:.*]] = !DIBasicType(name: "real", size: 64, encoding: DW_ATE_float)
! BOTH-DAG: ![[TYI32:.*]] = !DIBasicType(name: "integer", size: 32, encoding: DW_ATE_signed)
! BOTH-DAG: ![[TYI64:.*]] = !DIBasicType(name: "integer", size: 64, encoding: DW_ATE_signed)
! BOTH-DAG: ![[TYL8:.*]] = !DIBasicType(name: "logical", size: 8, encoding: DW_ATE_boolean)
! BOTH-DAG: ![[TYL32:.*]] = !DIBasicType(name: "logical", size: 32, encoding: DW_ATE_boolean)
! BOTH-DAG: ![[TYR32:.*]] = !DIBasicType(name: "real", size: 32, encoding: DW_ATE_float)
! BOTH-DAG: ![[TYR64:.*]] = !DIBasicType(name: "real", size: 64, encoding: DW_ATE_float)

! CHECK-DAG: ![[I4]] = !DILocalVariable(name: "i4", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYI32]])
! CHECK-DAG: ![[I8]] = !DILocalVariable(name: "i8", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYI64]])
! CHECK-DAG: ![[R4]] = !DILocalVariable(name: "r4", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYR32]])
! CHECK-DAG: ![[R8]] = !DILocalVariable(name: "r8", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYR64]])
! CHECK-DAG: ![[L1]] = !DILocalVariable(name: "l1", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYL8]])
! CHECK-DAG: ![[L4]] = !DILocalVariable(name: "l4", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYL32]])
! BOTH-DAG: ![[I4]] = !DILocalVariable(name: "i4", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYI32]])
! BOTH-DAG: ![[I8]] = !DILocalVariable(name: "i8", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYI64]])
! BOTH-DAG: ![[R4]] = !DILocalVariable(name: "r4", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYR32]])
! BOTH-DAG: ![[R8]] = !DILocalVariable(name: "r8", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYR64]])
! BOTH-DAG: ![[L1]] = !DILocalVariable(name: "l1", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYL8]])
! BOTH-DAG: ![[L4]] = !DILocalVariable(name: "l4", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYL32]])
integer(kind=4) :: i4
integer(kind=8) :: i8
real(kind=4) :: r4
Expand All @@ -62,11 +78,11 @@ program mn
i8 = fn1(i4, r8, l1)
i4 = fn2(i8, r4, l4)
contains
! CHECK-DAG: ![[FN1:.*]] = distinct !DISubprogram(name: "fn1", {{.*}})
! CHECK-DAG: ![[A1]] = !DILocalVariable(name: "a1", arg: 1, scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI32]])
! CHECK-DAG: ![[B1]] = !DILocalVariable(name: "b1", arg: 2, scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYR64]])
! CHECK-DAG: ![[C1]] = !DILocalVariable(name: "c1", arg: 3, scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYL8]])
! CHECK-DAG: ![[RES1]] = !DILocalVariable(name: "res1", scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI64]])
! BOTH-DAG: ![[FN1:.*]] = distinct !DISubprogram(name: "fn1", {{.*}})
! BOTH-DAG: ![[A1]] = !DILocalVariable(name: "a1", arg: 1, scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI32]])
! BOTH-DAG: ![[B1]] = !DILocalVariable(name: "b1", arg: 2, scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYR64]])
! BOTH-DAG: ![[C1]] = !DILocalVariable(name: "c1", arg: 3, scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYL8]])
! BOTH-DAG: ![[RES1]] = !DILocalVariable(name: "res1", scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI64]])
function fn1(a1, b1, c1) result (res1)
integer(kind=4), intent(in) :: a1
real(kind=8), intent(in) :: b1
Expand All @@ -76,11 +92,11 @@ function fn1(a1, b1, c1) result (res1)
res1 = a1 + b1
end function

! CHECK-DAG: ![[FN2:.*]] = distinct !DISubprogram(name: "fn2", {{.*}})
! CHECK-DAG: ![[A2]] = !DILocalVariable(name: "a2", arg: 1, scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI64]])
! CHECK-DAG: ![[B2]] = !DILocalVariable(name: "b2", arg: 2, scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYR32]])
! CHECK-DAG: ![[C2]] = !DILocalVariable(name: "c2", arg: 3, scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYL32]])
! CHECK-DAG: ![[RES2]] = !DILocalVariable(name: "res2", scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI32]])
! BOTH-DAG: ![[FN2:.*]] = distinct !DISubprogram(name: "fn2", {{.*}})
! BOTH-DAG: ![[A2]] = !DILocalVariable(name: "a2", arg: 1, scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI64]])
! BOTH-DAG: ![[B2]] = !DILocalVariable(name: "b2", arg: 2, scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYR32]])
! BOTH-DAG: ![[C2]] = !DILocalVariable(name: "c2", arg: 3, scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYL32]])
! BOTH-DAG: ![[RES2]] = !DILocalVariable(name: "res2", scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI32]])
function fn2(a2, b2, c2) result (res2)
integer(kind=8), intent(in) :: a2
real(kind=4), intent(in) :: b2
Expand Down
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