diff options
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 3 | ||||
| -rw-r--r-- | test/CodeGen/ARM/2012-10-04-LDRB_POST_IMM-Crash.ll | 23 |
2 files changed, 25 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index e6f0ef25d8..051aab05cb 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -6418,7 +6418,8 @@ EmitStructByval(MachineInstr *MI, MachineBasicBlock *BB) const { } else { AddDefaultPred(BuildMI(*BB, MI, dl, TII->get(ldrOpc),scratch) - .addReg(srcOut, RegState::Define).addReg(srcIn).addImm(1)); + .addReg(srcOut, RegState::Define).addReg(srcIn) + .addReg(0).addImm(1)); AddDefaultPred(BuildMI(*BB, MI, dl, TII->get(strOpc), destOut) .addReg(scratch).addReg(destIn) diff --git a/test/CodeGen/ARM/2012-10-04-LDRB_POST_IMM-Crash.ll b/test/CodeGen/ARM/2012-10-04-LDRB_POST_IMM-Crash.ll new file mode 100644 index 0000000000..6eb8fcb2db --- /dev/null +++ b/test/CodeGen/ARM/2012-10-04-LDRB_POST_IMM-Crash.ll @@ -0,0 +1,23 @@ +; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi | FileCheck %s +; Check that LDRB_POST_IMM instruction emitted properly. + +%my_struct_t = type { double, double, double } +@main.val = private unnamed_addr constant %my_struct_t { double 1.0, double 2.0, double 3.0 }, align 8 + +declare void @f(i32 %n1, %my_struct_t* byval %val); + + +; CHECK: main: +define i32 @main() nounwind { +entry: + %val = alloca %my_struct_t, align 8 + %0 = bitcast %my_struct_t* %val to i8* + +; CHECK: ldrb {{(r[0-9]+)}}, {{(\[r[0-9]+\])}}, #1 + call void @llvm.memcpy.p0i8.p0i8.i32(i8* %0, i8* bitcast (%my_struct_t* @main.val to i8*), i32 24, i32 8, i1 false) + + call void @f(i32 555, %my_struct_t* byval %val) + ret i32 0 +} + +declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind |