From 36f934a2076404d22bf84a8ccf7a8252367e6d24 Mon Sep 17 00:00:00 2001 From: Hal Finkel Date: Fri, 10 Apr 2015 03:39:00 +0000 Subject: [PATCH] [PowerPC] Don't crash on PPC32 i64 fp_to_uint on modern cores When we have an instruction for this (and, thus, don't generate a runtime call), we need to custom type legalize this (in a trivial way, just as we do for fp_to_sint). Fixes PR23173. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234561 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/PowerPC/PPCISelLowering.cpp | 1 + test/CodeGen/PowerPC/f32-to-i64.ll | 23 +++++++++++++++++++++++ 2 files changed, 24 insertions(+) create mode 100644 test/CodeGen/PowerPC/f32-to-i64.ll diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index 7e2e9b3d808..2df4c4899e2 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -7702,6 +7702,7 @@ void PPCTargetLowering::ReplaceNodeResults(SDNode *N, return; } case ISD::FP_TO_SINT: + case ISD::FP_TO_UINT: // LowerFP_TO_INT() can only handle f32 and f64. if (N->getOperand(0).getValueType() == MVT::ppcf128) return; diff --git a/test/CodeGen/PowerPC/f32-to-i64.ll b/test/CodeGen/PowerPC/f32-to-i64.ll new file mode 100644 index 00000000000..c1381880b75 --- /dev/null +++ b/test/CodeGen/PowerPC/f32-to-i64.ll @@ -0,0 +1,23 @@ +; RUN: llc < %s | FileCheck %s +target datalayout = "E-m:e-p:32:32-i64:64-n32" +target triple = "powerpc-unknown-unknown" + +; Function Attrs: nounwind +define i64 @testullf(float %arg) #0 { +entry: + %arg.addr = alloca float, align 4 + store float %arg, float* %arg.addr, align 4 + %0 = load float, float* %arg.addr, align 4 + %conv = fptoui float %0 to i64 + ret i64 %conv + +; CHECK-LABEL: @testullf +; CHECK: fctiduz [[REG1:[0-9]+]], 1 +; CHECK: stfd [[REG1]], [[OFF:[0-9]+]](1) +; CHECK-DAG: lwz 3, [[OFF]](1) +; CHECK-DAG: lwz 4, {{[0-9]+}}(1) +; CHECK: blr +} + +attributes #0 = { nounwind "target-cpu"="a2" } + -- 2.34.1