Index: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp =================================================================== --- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -1483,7 +1483,6 @@ // Try to select the instruction with FastISel. if (FastIS->selectInstruction(Inst)) { - FastISelFailed = true; --NumFastIselRemaining; ++NumFastIselSuccess; // If fast isel succeeded, skip over all the folded instructions, and @@ -1506,6 +1505,8 @@ continue; } + FastISelFailed = true; + // Then handle certain instructions as single-LLVM-Instruction blocks. // We cannot separate out GCrelocates to their own blocks since we need // to keep track of gc-relocates for a particular gc-statepoint. This is Index: llvm/trunk/test/CodeGen/X86/fast-isel-abort-warm.ll =================================================================== --- llvm/trunk/test/CodeGen/X86/fast-isel-abort-warm.ll +++ llvm/trunk/test/CodeGen/X86/fast-isel-abort-warm.ll @@ -1,4 +1,4 @@ -; RUN: llc -fast-isel -o - %s -fast-isel-report-on-fallback 2>&1 | FileCheck %s +; RUN: llc -fast-isel -o - %s -fast-isel-report-on-fallback -pass-remarks-missed=isel 2>&1 | FileCheck %s ; Make sure FastISel report a warming when we asked it to do so. ; Note: This test needs to use whatever is not supported by FastISel. ; Thus, this test may fail because inline asm gets supported in FastISel. @@ -6,9 +6,26 @@ target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-apple-macosx" +; CHECK: remark: :0:0: FastISel missed call: call void asm sideeffect ; CHECK: warning: Instruction selection used fallback path for foo define void @foo(){ entry: call void asm sideeffect "nop", "~{dirflag},~{fpsr},~{flags}"() ret void } + +; CHECK: remark: :0:0: FastISel missed: store i128 +; CHECK: warning: Instruction selection used fallback path for test_instruction_fallback +define void @test_instruction_fallback(i128* %ptr){ + %v1 = load i128, i128* %ptr + %result = add i128 %v1, %v1 + store i128 %result, i128 * %ptr + ret void +} + +; CHECK-NOT: remark: :0:0: FastISel missed +; CHECK-NOT: warning: Instruction selection used fallback path for test_instruction_not_fallback +define i32 @test_instruction_not_fallback(i32 %a){ + %result = add i32 %a, %a + ret i32 %result +}